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Abhik Sarkar

I am Abhik Sarkar, a machine learning engineer focused on building real-world computer vision systems that actually run at scale. My work lives at the intersection of software engineering, GPU hardware, and production reliability .

I currently lead machine learning at Cloudastructure, where I design end-to-end vision pipelines spanning high-throughput video ingestion, GPU-accelerated decoding, and low-latency inference. My daily toolset includes PyTorch, TensorRT, NumPy, OpenCV, CuPy, PyCUDA, and ONNX Runtime.

  • An Introduction to Writing Fast GPU Code in Python
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Abhimanyu Singh Shekhawat

Professionally, I've 8 years of experience in making large scale distributed systems.
Personally, I am a passionate tinkerer, learner & educator who sees tech as the vehicle for bringing transformative change.
My aim is to democratise access to technology to enable each of us to do more.

  • Deconstructing the tenets of Planet Scale Systems with Python
  • Deconstructing the tenets of Planet Scale Systems with Python
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Abigail Afi Gbadago

Abigail Afi Gbadago is a software engineer and a dev advocate.

She contributes to the community and tech through her roles as Vice President of the Django Software Foundation Board, a Fellow of the Python Software Foundation, Program Chair for DjangoCon US 2025, ex-Regional Executor for Black Python Devs, and Microsoft MVP for the Python and Web Track.

  • Pointers, Objects, and References - How Python Manages Memory
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Adam Gorgoń

I’m a Data Scientist with a strong foundation in Python and machine learning. I have great passion for NLP and statistics.

  • gRPC for Beginners
  • gRPC for Beginners
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Alan Velasco

I'm Alan and I have many hobbies, the engineering of software happens to be the one I practice every weekday.

  • Untangling the Web: Alternative Internet Protocols in Python
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Alejandro Cabello Jiménez

Alejandro Cabello Jiménez is a Staff Software Engineer at Perk, based in Barcelona. He leads Python backend projects that evolve the product, focusing on performance, maintainability, and reliability. His work ensures the system scales and adapts, delivering a smooth experience to business travelers worldwide.

  • Python on Serverless: Strategies for Peak Performance
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Aleksander

Computer Science engineering student at AGH University of Krakow, specializing in software development and data analysis. His technical experience includes working at CERN's Large Hadron Collider monitoring data acquisition systems and troubleshooting complex technical issues. Proficient in multiple programming languages including Python, C++, and PHP. Practical engineering skills with analytical capabilities developed through scientific research and electronics work. An amateur radio operator and active member of technical communities.

  • Python in the Service of Justice: Modern Analysis Tools in Forensics
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Alenka Frim

My software development journey began with the open-source and the Apache Arrow project. In 2021, I made my first contribution to the Arrow R package, an experience that sparked my interest in software development and open-source collaboration. During my internship at Quansight, I was introduced to the Python DataFrame API standard, which deepened my understanding of interoperability challenges.

In 2022, after over a year of contributions, I became an Apache Arrow committer, primarily focusing on the Python implementation. I continued my work as a PyArrow maintainer at Voltron Data until mid-2024.

Apache Arrow remains the project I’m most passionate about, and I’m still actively involved in its development as a freelancer.

  • Stop Guessing, Start Understanding: How Arrow and Pandas Exchange Data
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Anna Wszeborowska

Anna is a software developer and an academic researcher focusing on interactive real-time systems for music and audio. She draws upon over a decade of practical experience in the music tech industry, having worked on software and hardware products which have become industry standards for performing electronic music on stage. For the last couple of years she has been associated with University of the Arts London, where she has worked as a researcher on a project promoting ethical use of AI in creative music practice, funded by Responsible AI UK.

Anna has been involved with multiple mentoring initiatives for groups underrepresented in tech, striving to empower marginalised communities and help them advance in their practice.

  • Create your own musical instrument with custom gesture control
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Antonio Cuni

Principal Software Engineer at Anaconda. He is the author of SPy, a core developer of PyScript and PyPy, and one of the founders of the HPy project, which aims to design a better and more modern C API for Python. He loves to write tools from developers for developers, such as Pdb++, fancycompleter and vmprof and he is creator/maintainer/contributor of numerous other open source projects.

He have also been very active in the Python community for years, giving talks at various conferences such as EuroPython, EuroSciPy, PyCon Italia, and many others. He regularly writes on the PyPy blog and on the HPy blog. His main areas of interest are compilers, language implementation, TDD and performance.

  • SPy: high-level Python, low-level performance, no overhead
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Anwesha Das

Anwesha is a fellow at the Python Software Foundation, Outstanding PyLadies Award winner (2025) and Release Manager of Ansible. She works as a Software Engineer with the Ansible Engineering team at Red Hat. She led PyLadies efforts in India and now is an organizer at PyLadies Stockholm. You can follow her blog at https://anweshadas.in.

  • Demystifying CRA for the community
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Ariane Djeupang

Ariane Djeupang is a Microsoft MVP, an ML Engineer and Project Manager, passionate about fostering community growth and innovation in the tech industry. While she is the current appointed Chair for PyCon Africa, she is dedicated to promoting diversity and inclusion, actively participating in the Python | Django | PyLadies communities and other initiatives that empower underrepresented groups in technology.

  • No More “It Works on My Notebook”!: From Notebook to Production-Ready Model
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Ariel Ortiz

Ariel Ortiz is a programming languages enthusiast. Since 1994, he has been a full-time faculty member at the Tecnológico de Monterrey in Mexico, where he primarily teaches undergraduate computer science courses. His first encounter with Python was in 2001, and since then, he has integrated it into several of his classes, including Advanced Algorithms and Compiler Design. He is an active member of ACM’s Special Interest Group on Computer Science Education (SIGCSE) and has been a speaker at PyCon US, PyCon Latam, Python Brasil, and EuroPython conferences. Additionally, he is the main author of the Spanish-language websites EduPython and RIP3.

  • Crafting Your Own Compiler: From Python Logic to High-Speed WebAssembly
  • Crafting Your Own Compiler: From Python Logic to High-Speed WebAssembly
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Bryce Adelstein Lelbach

Bryce Adelstein Lelbach has spent over a decade developing programming languages, compilers, and libraries. He is passionate about parallel programming and strives to make it more accessible for everyone.

Bryce is a Principal Architect at NVIDIA, where he founded the Core C++ Compute Libraries team and now leads the Vanguard Programming group that drives NVIDIA's roadmap for programming languages, compilers, and core libraries.

He is a leader of the systems programming language community, having served as chair of the C++ Library Evolution and the US programming language standards committee. He has been an organizer and program chair for many conferences over the years. On the C++ committee, he has worked on concurrency primitives, parallel algorithms, senders, and multidimensional arrays.

He previously worked at Lawrence Berkeley National Laboratory and Louisiana State University. He is one of the founding developers of the HPX parallel runtime system.

Outside of work, Bryce is passionate about airplanes and watches. He lives in Midtown Manhattan with his girlfriend and dog.

  • GPU Programming in Pure Python
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Carlos A Aranibar

Carlos Aranibar is a Data Scientist 📊 from Bolivia 🇧🇴 who now lives in Chicago.

He has a background in Economics and Statistics and holds a Master’s in Data Science.
Carlos is skilled in querying data, process optimization, and automation.
He loves to learn and actively participates in multiple Meetups, discussing new developments in tech/software/data. Carlos is part of the Chicago Python (ChiPy) board and also a volunteer for PostgreSQL.

Fluent in both English and Spanish!

Carlos’ LinkedIn, feel free to reach out!

  • Designing and Building Custom Keyboards ⌨️ with Python
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Cheuk Ting Ho

After having a career as a Data Scientist and Developer Advocate, Cheuk dedicated her work to the open-source community. Currently, she is working as a developer advocate for JetBrains. She has co-founded Humble Data, a beginner Python workshop that has been happening around the world. Cheuk also started and hosted a Python podcast, PyPodCats, which highlights the achievements of underrepresented members in the community. She has served the EuroPython Society board for two years and is now a fellow and director of the Python Software Foundation.

  • Rust Summit at EuroPython
  • Rust for High Performance Computing (HPC) in Python
  • Rust Summit at EuroPython
  • Rust Summit at EuroPython
  • Rust Summit at EuroPython
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Christian Leitold

I am a former scientist who now works as a software engineer and in the field of data science. Also, I am a huge nerd and lover of all things concerning free and open source software. Let us make SciFi utopia a reality!

  • How to blend Python, physics, and art to create (hopefully) pretty pictures
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Claudiu Belu

Open source enthusiast
OpenStack contributor
OpenStack stable core maintainer (Nova, 2014)
OpenStack Project Team Lead (Winstackers, 2015)
Kubernetes Tech Lead (sig-windows, 2021)

  • What is this footgun called unittest.mock, and how to avoid misusing it
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Cody Fincher

As a database architect by trade, Cody channels his expertise into his passion for Python open-source development. He is a dedicated Pythonista who creates and maintains community-driven projects like the Litestar web framework, Advanced Alchemy, and SQLSpec. He's always excited to connect with fellow developers and talk about Python, high-performance databases, and everything in between.

  • Designing Performant APIs with Litestar
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Cristián Maureira-Fredes

Cristián is a PSF Fellow and Board Director that is currently working at The Qt Company as Principal R&D Manager, in charge of the Qt Core (Berlin) and Qt for Python teams, from which he has been part of the development team for more than 6 years.

In his spare time, Cristián is a serial conference and community organizer in many countries, and participates in different initiatives like the translation of the Python documentation into Spanish, PyPI moderation, and others related Python and Qt.

  • Understand and expand Python: a hands-on experience on Python internals
  • Understand and expand Python: a hands-on experience on Python internals
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DEBORAH E DANJUMA

Deborah Danjuma is a Robotics Engineering master’s student specializing in intelligent field robotic systems, with a strong focus on autonomous navigation, perception, and embedded systems. She holds a Bachelor’s degree in Mechanical Engineering, graduating as the best student of her class with a perfect 5.00/5.00 GPA. Her technical work spans ROS (Noetic and Humble), C++, Python, MATLAB, microcontroller programming (STM32, ESP32), and simulation-driven robotics development. Deborah has hands-on experience in motion planning, SLAM, control systems, and multi-robot coordination, and she actively builds and tests algorithms in both simulation and real robotic platforms.
Beyond robotics, Deborah is the co-author of 4.49 to 5.0, a book helping university students achieve academic excellence. She is currently based in Zagreb, Croatia.

  • Flying in Formation - with Python Threading and ROS2 Parallelism
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Damian Wysocki

I’m a Python developer since 2017, I am deeply passionate about my craft and love sharing my knowledge with others. I find joy in constantly learning new things and staying up-to-date with the latest developments in the industry. In fact, I'm so passionate about sharing knowledge that I spend my free time mentoring aspiring developers in Python workshops in my hometown. I'm also an organizer of local IT meetups, where I get to connect with like-minded professionals and discuss the latest trends and challenges in our field.

  • From Ticket Taker to Problem Solver: Discovery for Senior Thinking
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Dan Jones

Dan is your average coffee enjoyer who also writes code and boulders. He cares about type safety, testability, and the collaborative engineering practices that help teams build maintainable software.

  • AI Slop to AI Gold: Building Codebases That Last
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Daniel Vahla

Senior software developer with over 8 years of experience in Python applied in industrial domain. Organizer of Helsinki Python, PyData Helsinki, and PyCon Finland 2025.

  • Python and HTTP/3: feel the difference in performance
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Daria Korsakova

Python backend engineer with a SDET background. I love systems that are both robust and boring to run, and I’m a fan of pragmatic engineering: clear APIs, solid testing, and production-friendly observability

  • Stop firefighting: practical observability for Python APIs, workers & jobs
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David Rousset

David Rousset is a Principal Program Manager at Microsoft, focused on AI engineering and developer experience. Inside the CoreAI - Developer division, he works on building next-gen agentic tooling like the AI Toolkit, Foundry Extension and MCPs. His work combines OSS, GenAI, and production-grade workflows. He’s also the co-author of Babylon.js, a WebGL 3D engine used by several Microsoft applications in Office as well as various external partners such as Adobe. As a former evangelist, he’s used to public in various conferences, mainly about web development but also about quantum computing as he's passionate about it. He’s based in Paris, France which will explain is weird but lovely accent.

  • When Python Agents Meet 3D: Automating Blender from Natural Language
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David Vaz

Software developer for over 20 years, fell in love with Python almost at the beginning of his journey. Django developer since 2007. He loves Python and Django so much that he has been bringing developers to the community ever since, and he ended up starting his consultancy firm around these technologies.
DjangoCon Europe Organizer for a few of the last editions, PyCon Portugal organizer since the beginning in 2022.

  • I Am a Sucker for Conventions. Why Django’s Defaults Work, Until They Don’t
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Dawn Wages

Dawn Gibson Wages is a software engineer, ethical open source advocate, and community leader. She is the former Chair of the Python Software Foundation Board (volunteer) and currently works as Director of Community and Developer Relations at Anaconda, the largest scientific Python distribution in the world. Her deep investment in the community is spent championing inclusive practices and sustainable growth in open source ecosystems. Dawn’s work bridges technical expertise with a commitment to equity, sovereignty, and collaboration in the developer community. When she's not working in the Python ecosystem, she is watching Star Trek in Philadelphia with her wife and two dogs.

  • How many spoons does your environment cost: Broken demos & human element
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Deb Nicholson

Deb Nicholson is an open source software policy expert and a passionate community advocate. She is the Executive Director at the Python Software Foundation which serves as the non-profit steward of the Python programming language. She’s won the O’Reilly Open Source Award and the Award for the Advancement of Free Software for her efforts to broaden the free and open source software movement. She serves on the Board of Directors for the Spritely Institute and on the Advisory Board for Computer Science at Cambridge Rindge and Latin School. She lives with her husband and her lucky black cat in Cambridge, Massachusetts.

  • International Open Source – Your Best Choice in Interesting Times
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Diego Russo

Diego Russo is a CPython core developer and Principal Software Engineer in Arm’s Runtimes team, based in Cambridge, UK. He has been using Python since 2006 and contributing to CPython since 2023, with a focus on interpreter performance, JIT-related work, CI infrastructure, and ensuring CPython and its ecosystem run reliably and efficiently on Arm platforms. His work sits at the intersection of runtime, performance engineering, and large-scale open source collaboration.
Diego is also a EuroPython organiser and leads the Arm Python Guild, an internal community of more than 1,400 Python developers working across the company.

  • Python on Windows on Arm: Ecosystem Enablement Update
  • Update on the CPython JIT: What to expect in 3.15
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Domagoj Marić

Domagoj Marić is AI Customer Delivery Manager at Pontis Technology, where he leads projects in NLP, computer vision, predictive analytics, and generative AI. With a background in information security and data science, he previously headed data science teams at Megatrend and Comping. Beyond his industry work, Domagoj is also an experienced lecturer, sharing knowledge in programming and applied AI with students and professionals.

  • Friendly Borders: Graph algorithms reveal Eurovision voting patterns
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ELENI TOKMAKTSI

I enjoy turning raw data into analysis ready and meaningful information that has an impact on our daily lives.

With a BSc in Geology, an MSc in Applied Geophysics, and over three years as a Geospatial Data Engineer, I work at the intersection of geoscience and technology. My work includes building tools to streamline geospatial data workflows, developing and maintaining websites, and creating custom Python solutions to automate daily tasks.

And if technology collapses, a solar storm wipes out the internet, or AI takes our jobs, my Plan B is to become a cook!

Don't hesitate to connect with me on Linkedin!

  • From Pixels to Insights: Python for Earth Observation
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Ege Akman

I'm Ege.

Some nice random websites you might like:

  • https://cataas.com/cat
  • https://poms.fun
  • https://random.dog

Enjoy 🍻

  • Discussion session
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Emmanuel Ugwu

I’m Ugwu Nnamdi Emmanuel, Vice Regional Executor (Africa) at Black Python Devs. My path into tech started from a background in Human Physiology, and along the way I discovered how powerful communities can be in shaping lives. I now work at the intersection of code and people. Mentoring beginners, supporting diversity, and helping Python developers across Africa find their voice. For me, the best part of Python isn’t the syntax. It’s the people you meet when you choose to grow together.

  • Python Stings Your Ego: Finding Pride in Community, Not Just Code
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Evan Kohilas

Evan is a serial international speaker and engineering productivity advocate who values frictionless simplicity, taming tech debt, thinking in systems, and tightening feedback loops - all to improve the developer experience and achieve nohumanerrors.com

When he's not working on his next talk or project idea, you may catch him as an organiser for PyCon Australia, dodging magpies while bike riding, chasing frisbees, or defending subway cookies.

  • Args: Amazing or Approaching?
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Farhaan Bukhsh

Farhaan Bukhsh is an open-source contributor and Pythonista. With a background in cloud infrastructure and platform engineering, Farhaan has contributed extensively to projects like Fedora and Open edX, where he is a core committer. He's passionate about bridging the performance gap between Python and system-level programming, recently exploring the power of Rust to accelerate machine learning workflows. When he's not writing code, Farhaan enjoys mentoring new contributors, organizing tech communities, and brewing the perfect pour-over coffee.

  • Python Games in the Browser: Teaching with WebAssembly
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Felipe Arruda Pontes

Felipe is currently a post-doc researcher at Maastricht University (Netherlands), with a background in Information Systems and more than 13 years of experience in software engineering, specialising in ecologically sustainable distributed computing, stream processing, uncertainty awareness, and computer vision. He is also an Open-Source enthusiast, having contributed to many popular projects over the years.

  • How Python is Democratising Agritech for Farmers Across Europe
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Filip Makraduli

Experienced tech speaker and currently founding ML developer relations engineer at superlinked. Industry experience in Machine Learning, AI, and Data Science as well as a masters degree from Imperial College London.

  • Self-Hosted Small Models: From OpenAI Lock-In to Open Models
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Florian Freitag

I am a software engineer working on the Kotlin compiler at JetBrains and doing my masters in computer-science at TU Wien (Austria). Fascinated by all aspects of computing but currently enjoying my deep fall down the compiler engineering rabbit hole.

  • How CPythons Errors keep getting better
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Florian Wilhelm

Florian is Head of Data Science & Mathematical Modeling at inovex GmbH, an IT project center driven by innovation and quality, focusing its services on ‘Digital Transformation’. He holds a PhD in mathematics, has more than 10 years of experience in predictive & prescriptive analytics use-cases and likes everything math 🤯

  • The Problem with None: Sentinel Values and the Semantics of Absence
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Francesco Lucantoni

I’m Francesco :) I work as a Machine Learning Engineer!
I work at Prima, the insurance company. I believe in humor and empathy.
I play the guitar and I sing in a choir. I also like cooking… and eating of course.

  • Everything you always wanted to know about pandas*
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Freya Bruhin

Freya Bruhin ("The Compiler") is a long-time contributor and maintainer of both the pytest framework and various plugins. Discovering pytest in 2015, Freya has since given talks and conducted workshops about pytest at various conferences and companies. Freya's main project, qutebrowser (a keyboard-focused web browser), has grown from a hobby to a donation-funded part-time job.

  • Property based testing with Hypothesis
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Fridtjof Stoldt

I'm a PhD student focussing on programming languages and compilers. Currently, I'm focussed on retrofitting concurrency to Python without breaking existing programs

  • Immutability: Fast and Safe sharing of Data across Subinterpreters
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GAFFIOT Jonathan

Computer Engineer, mostly in C++ and Python, currently developping AI-based business applications fullstack. Also involved in auditing, training, recruitment, and conference speaking.

  • Getting out of the testing hell
  • Getting out of the testing hell
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George Margaritis

Hey hey 👋

I'm George, a Software Engineer with a soft spot for Python, open source software, and vibrant tech communities. I help organize EuroPython and PyCon Greece!

  • Community Organizers Summit: Opening and introduction
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Georgi Ker

[Georgi Ker](url serves as Vice Chair of the Python Software Foundation and Chair of the PSF Diversity & Inclusion Workgroup. A PSF Fellow and Community Service Award recipient, she helps build and support open source communities including PyLadies, PyLadiesCon, Python Asia, PyPodCats, PyCon Thailand, Ruby Tuesday, and RubyConf Thailand. She is based in Amsterdam.

  • The Experience Is the Community
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Giovanni Barillari

Physicist, software developer, SRE, OSS maintainer. Photography passionated. In love with radical honesty.

  • Rethinking AsyncIO from scratch for free-threaded Python
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Gleb Khmyznikov

Software Engineer at Microsoft. I work on the Python environment for Windows on Arm, PowerToys, Windows developer tools, and the Windows Shell. PWA expert.

  • Python on Windows on Arm: Ecosystem Enablement Update
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Gracjan Adamus

Third-year Applied Computer Science student at AGH University of Kraków. Interested in GPUs, HPC and Open-source software. Currently working as a Summer Student @ CERN.

  • PyPartMC: A Pythonic interface enhancing Fortran-based simulation package
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Grzegorz Bokota

I'm maintainer of the napari project (n-dimensional viewer written in python) and an assistant professor at the University of Warsaw.

In daily work on improving napari I focus on improving application in the context of performance and stability and improving the API for plugin creators to allow them to ship a better product.

At university I provide Python and data analysis classes.

  • Plugins in python - how it is done
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Grzegorz Kocjan

14 years of programming in Python is a great adventure, no matter if I had to fix a bug on yesterday, or design a complex and efficient architecture, Python never let me down. I love code optimization and difficult tasks. I love to share knowledge. Father of two kids, sci-fi and fantasy fan, gamer, LEGO builder.

  • The hardest test suite I ever built - a pytest case study
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Guido van Rossum
  • Core.py recording with Guido van Rossum
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Gyeongjae Choi
  • Python Everywhere: The State of Python on WebAssembly
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Hood Chatham

Was a mathematician studying Algebraic topology until the end of 2022. Have been a maintainer of Pyodide since the beginning of 2021. Since 2023, working at Cloudflare on Python workers. Also a maintainer of Emscripten, the Rust Emscripten target, wasm-bindgen, and various other Web Assembly ecosystem tools.

  • Python Everywhere: The State of Python on WebAssembly
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Imogen Wright

Imogen Wright (they/them) is a South African software engineer and bioinformatician who has spent the last two decades trying to make complex systems behave—in theoretical physics, HIV drug resistance and COVID genomics, healthcare communications, cloud technologies and even ad tech. They studied computer science and physics at Rhodes University, completed a masters in theoretical physics at the Perimeter Institute (where Stephen Hawking was guest of honour at their graduation), and earned a PhD in bioinformatics from the University of the Western Cape. Imogen co-founded Hyrax Biosciences, whose Exatype software helps track HIV drug resistance across Africa and assembled the first Omicron variant SARS-CoV-2 genomes. Their work has been recognised by the Innovation Prize for Africa, various publications, two patents, and a long list of disasters that now fuel their favourite stories.

  • How Complex Systems Taught Me To Fail
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Ivan Markeev

Engineering leader with over 20 years in software development and leadership roles. Strong track record in people management, technical direction, and solution architecture. Proven ability to scale teams, drive cross-org adoption of complex systems, and deliver cloud-native, AI-enabled platforms. Certified Professional Cloud Architect. Deep experience in designing and operating high-throughput systems for fintech, crypto, and enterprise domains.

  • Scaling Python Systems by Designing Team-Aware Architecture
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Ivana Kellyer

Software engineer at Sentry, maintaining the Python SDK. Plant and game enthusiast owned by three cats.

  • How to Maintain 60 Integrations and Not Go Bananas
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Jacob Coffee

Jacob Coffee is the Director of Engineering at the Python Software Foundation and a CPython triager. He supports key Python services such as PyPI.org and Python.org while also contributing to the maintenance of the Litestar ecosystem which boasts libraries such as Litestar, Advanced Alchemy, Polyfactory, and more. He is passionate about open-source development, the mission of the PSF, and enhancing the tools that empower developers worldwide.

  • Supercharging Litestar: Extensibility Through Plugins
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Jan Koprowski

I'm big fan of teaching people and sharing my experience and knowledge regarding Python, unit testing and TDD. I'm trainer in my company's team.

  • How we write unit test in my team in Openchip
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Jan Musílek

I’ve gained my degree in Theoretical Computer Science on Charles University in Prague. I currently work as a Senior Python Developer at CZ.NIC, taking care of .cz domain registry and its ecosystem. I’ve been programming for more than 20 years, 9 of those as a professional Python developer. I’m a Linux and FOSS enthusiast and I like to submit PRs to open source projects whenever possible. I enjoy playing board games in my free time.

  • Breaking changes – not great, not terrible
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Jan Smitka

I am a Software engineer from Pilsen, Czech Republic, with more than 20 years of experience.

I develop web and data applications in Python. However, my area of expertise also includes everything required for their complete delivery and maintenance: frontend, databases, system administration, cloud deployment, containers, networks, development workflows, project management, and many others.

I am a co-organizer of Pilsen Pyvo, a local meetup for Python enthusiasts and developers.

  • Faster Django ORM queries for everybody
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Jannis Leidel

Working on conda and friends at Anaconda, previously worked on Django, pip and virtualenv, cofounder of PyPA and Jazzband. Current Python Software Foundation Chair and Fellow.

  • Packaging Summit
  • Packaging Summit
  • Packaging Summit
  • Packaging Summit
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Jarosław Śmietanka

Senior Software Engineer in the Commodities Risk Technology team at Balyasny Asset Management, working on large-scale, long-lived Python systems in a high-stakes financial environment.

Previously a Technical Team Lead at Growbots, where I spent nearly a decade designing and evolving microservice-based data platforms, leading engineering teams, and improving the maintainability of complex production codebases.

With over ten years of professional experience across finance, data engineering, and backend architecture, my work focuses on reducing system complexity, improving changeability, and helping teams deliver faster in real-world Python environments.

  • The Hidden Cost of Complexity: Reducing Cognitive Load in Python
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Jenny Vega

Software Engineer with 8+ years of experience. Currently working at Isomorphic Labs as ML Platform Engineer building scalable and safe solutions using large models in the AI Drug Discovery space.

  • From Molecules to Models: A Guide to AI Drug Discovery with Python
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Johannes Kolbe

Hey,

I'm Johannes, a Data Scientist who loves to tell educative stories about Machine Learning methods and AI. Preferably I'm doing this in Open Source communities.

I've been working with Computer Vision for more than 10 years, ranging from designing my own Haar-Cascade face detection, over research on autonomous cars and helping people configure their photobooks automatically, all the way to undestanding the needs of smalle and medium sized enterprises, to create tailored solutions for them.

  • Robot Holmes and the Silenced Witness: A Noir Guide to Real-Time Voice AI
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John Robert

John Robert is a Lead Data and ML Engineer at Sunnic Lighthouse subsidiary of Enerparc AG. Previously worked Mercedes-Benz (Daimler) and Bosch. He is the founder of Don’t Fear AI, John leverages his 8 years of Python expertise to help developers architect secure, transparent, and resilient AI systems. A frequent speaker at PyCon, PyCon DE, and Data Natives, he specializes in the high-stakes world of AI agent safety, prompt injection defense, and autonomous system evaluation.

He has also built production ML pipelines and applications such as the Manage Pet AI app. Outside of tech and AI, John enjoys traveling for fun having visited over 50 countries.

  • Hunting the Invisible: Indirect Prompt Injection in Python Pipelines
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Jon Nordby

Jon is a Machine Learning Engineer specialized in IoT systems.
He has a Master in Data Science and a Bachelor in Electronics Engineering,
and has published several papers on applied Machine Learning.
He has been contributing to open-source software since 2010.

These days Jon is co-founder and Head of Data Science at Soundsensing,
a leading provider of condition monitoring solutions for commercial buildings and HVAC systems.
He is also the creator and maintainer of emlearn,
an open-source Machine Learning library for microcontrollers and embedded systems.

  • Developing IoT sensors with MicroPython
  • Developing IoT sensors with MicroPython
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Jonathan Striebel

Jonathan is a software engineer at the intersection of research and production, with deep experience in ML inference pipelines, distributed systems, and data-intensive biomedical imaging. Performance optimization has been a recurring part of his work, including profiling-driven improvements to large-scale ML inference pipelines, and previous talks on single-core optimization and profilers at EuroPython, PyConDE and PyCon Italia. He is also co-author of the Zarr v3 open data standard, widely adopted in scientific computing. Based in Berlin 🐻

  • uvx which-profiler – Which Profiler, When
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Jukka Lehtosalo

Jukka is the creator of the mypy static type checker, and the co-author of PEPs 484 (which introduced standardized type hints to Python), PEP 544, PEP 586 and PEP 589. He is one of the founders of typeshed. Jukka works as a Staff Engineer at Dropbox. He is currently leading the mypyc compiler project and optimizing the efficiency of production Python services at Dropbox.

  • Speeding Up Python with Free Threading and Mypyc
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Julien Courtès

I am CTO @ Laby and Maintainer @ Litestar.
I used Python in my daily life at work and for my personal projects

  • Designing Performant APIs with Litestar
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Julien Lenormand

Tech Lead and Software Engineer for cybersecurity at Kor Labs.

Python programmer convinced by Agile, Software Craft, Accelerate and the antic greek philosophy. Former consultant for big industrial clients (SNCF, EDF, Thales, Schneider Electric).
Regular meetuper, speaker at different French conferences, technical coach.

  • Getting out of the testing hell
  • Security and Ethics in the Age of Generative AI
  • Getting out of the testing hell
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Kamil Kulig

💼 Building at CTHINGS.CO | 💻 programmer, 🌟✨🏆 leader, 🐍 python lover, 🎮 gamer, 🕺 king of disco, ⚽️🏀🏈🥊 love sport in every form, 🇵🇱 from Poland

  • gRPC for Beginners
  • gRPC for Beginners
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Karen Jex

Karen leads the PostgreSQL Europe Diversity Task Force, organises Postgres conferences, and gives talks about databases at database and developer events.

In her day job, she is a Solutions Architect, supporting customers through their database system design, deployment and management. She came to that via 20 years as a DBA, then several years in database consultancy. She was once described as “quite personable for a DBA” which she decided to take as a compliment.

Outside of the world of databases Karen loves cycling, mountain biking, skiing and spending time with her family in the mountains where she lives.

  • How much do you really need to know about Databases?
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Katie Bickford

Katie is a Junior Software Developer at the Bennett Institute for Applied Data Science where she helps maintain services that facilitate secure & transparent health data research. She cares a lot about supporting the Python community locally and globally, recently serving on the organising committee for PyCon UK 2025 as Communications Lead. Before becoming a software engineer, Katie previously spent ~10 years working in international medical communications & medical education.

  • Why doing difficult things is good for you and good for your team
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Ken Jin

Ken Jin is a Python core developer since Aug 2021. He works primarily on the performance of Python's interpreter. He currently works as a contractor for OpenAI.

  • Inside Python 3.15's JIT Optimizer
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Koudai Aono

I am a software developer based in Tokyo, with a strong focus on Python. I enjoy contributing to Open Source Software (OSS) with a goal to make the development environment friendlier.

  • Beyond `Optional` in Real-World Projects: Missing, `None`, and Unset
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Kshitijaa Jaglan
  • Discussion session
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Kuldeep Pisda

Kuldeep Pisda is a software and growth consultant helping startups and businesses build production-ready Django systems, scalable architectures, and AI-powered platforms. With over 7 years of experience, he has architected backends handling 50k+ concurrent users, built multi-tenant SaaS platforms, and led database performance recoveries on high-traffic PostgreSQL systems.
He is the creator and maintainer of django-rls, the open-source package bringing PostgreSQL Row-Level Security to Django. He has delivered tutorials at DjangoCon US for three consecutive years (2022–2024) and spoken at 15+ international conferences including APIDays India, and APISecure. He is an NIT Raipur alumnus and an active community organizer for GDG Raipur and DjangoDay India.

  • Django TDD Patterns: A Visual Field Guide
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Larry Hastings

Larry is a 200 foot assault robot manufactured by Yoyodyne Propulsion Systems, a major US defense contractor. He is suitable for heavy assault against heavily armored stationary targets, like laying siege to a walled city, or protecting supply lines during forward maneuvers.

  • Conquer multithreaded Python with Blanket
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Laura Summers

Laura is a very technical designer™️, working at Pydantic as Lead Design Engineer. Her side projects include Sweet Summer Child Score (summerchild.dev) and Ethics Litmus Tests (ethical-litmus.site). Laura is passionate about feminism, digital rights and designing for privacy. She speaks, writes and runs workshops at the intersection of design and technology.

  • The Human-in-the-Loop is Tired
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Leah Wasser

Leah Wasser is the Executive Director and founder of pyOpenSci, a community of 400+ researchers, engineers, and maintainers working to make developing and maintaining research software more accessible, sustainable, and human. Through open peer review — with 60+ packages reviewed to date — contributor mentorship, and accessible training, pyOpenSci helps scientists build better software and develop the technical skills to participate in open source.

Leah's work sits at the intersection of open source, open science, and open education — with inclusion at the center. She organizes the Maintainers Summit at PyCon US and believes the communities behind research software matter as much as the code itself.

As GenAI reshapes how software gets built, Leah is focused on protecting the human networks and reciprocal relationships that make open source sustainable — not just technically, but socially.
She has built nationally recognized programs at the National Ecological Observatory Network (NEON) and the University of Colorado Boulder. Leah holds a PhD in ecology and is an active open source maintainer. In her free time, you can find Leah on the trails with her rescue pup or at the gym lifting weights and swinging around bars and rings.

  • How to Run 160 KM: Building Resilience When Things Feel Hard
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Lysandros Nikolaou

Lysandros works as a Core Developer at Python@HRT in London where he tries to make the Python experience better. He is a CPython core developer, specializing in the parser, the tokenizer and the REPL. He previously worked on supercharging f-strings in Python 3.12, the new REPL for Python 3.13, t-strings in Python 3.14 and introducing fast string ufuncs in NumPy 2.0. Before HRT, he spent his time on CPython and the PyData ecosystem at Quansight, most recently improving support for free-threaded Python.

  • Python Dicts: Past, Present, and Free-Threaded Future
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Maciej Sobczak

Maciej is pretty much as regular as the next developer. Feels best as jack of many trades. Loves to share his knowledge and make better tools for people.

  • Django’s Magic, FastAPI’s Reality: Test Isolation at Scale
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Mai Giménez

Mai Giménez, PhD. is a staff research engineer working in large language and multimodal language models at Google Deepmind. She is passionate about building the most useful technology for everyone and her main research interest is in language and the sociotechnical impacts of these models in the real world.

Mai is a former board member of the Spanish Python Association, helped organise several PyConES conferences and is a proud member of the Pyladies.

  • Let it rip a diffusion tutorial
  • Let it rip a diffusion tutorial
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Malcolm Smith

Malcolm started the Chaquopy project in 2017 with the goal of making it as easy as possible to use Python in Android apps. He now works for Anaconda in the BeeWare team, which pursues the same mission but on all platforms, both desktop and mobile.

  • Supporting Android and iOS in your Python package
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Manivannan Selvaraj

I am a software engineer turned founder who once survived Silicon Valley by writing code and occasionally pretending I knew what I was doing. I worked at Salesforce, Slack, and PayPal, building and leading large-scale systems before moving back to my hometown, Coimbatore, India.

These days, I am building my own venture and trying to create useful things without breaking production too often. Over the years, I have worked with Python, Java, Go, Kubernetes, Docker, Terraform and a long list of tools that sounded cool at the time. I enjoy mentoring engineers, sharing lessons from the trenches and contributing to open source when I can.

  • From Code Hero to Team Leader: Learning to Let Go
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Marc-André Lemburg

Marc-Andre is the CEO and founder of eGenix.com, a Python-focused boutique project and consulting company based in Germany, specializing in the data, finance and database space. He has a degree in mathematics from the University of Düsseldorf.

His work with and for Python started in 1994. He is a Python Core Developer, designed and implemented the Unicode support in Python, the editor of the Python DB-API and author of several open source libraries and tools (e.g. the mx Extensions mxDateTime and mxODBC).

Marc-Andre is a EuroPython Society (EPS) Fellow, a Python Software Foundation (PSF) founding Fellow and co-founded a local Python meeting in Düsseldorf (PyDDF). He served on the board of the PSF and EPS for many years and loves to contribute to the growth of Python wherever he can.

More information is available on https://malemburg.com/

  • DuckLake - Take Python and DuckDB for a swim in your data lake
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Marcelo Trylesinski

Marcelo Trylesinski is a Senior Software Engineer at Pydantic, maintainer of the MCP Python SDK, Starlette, and Uvicorn. Born in Brazil, now based in the Netherlands. Also known as The FastAPI Expert. 🚀

  • What I've Learned Maintaining the MCP Python SDK
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Marco Grossi

Python developer, 20+ years
Benchmarking and Tuning, 20+ years
HPC (High Performance Computing) 15+ years, as Researcher and SysAdmin
CS graduate, passion for Distributed Systems and Algorithm
Run my own BGP network

  • From one to 1 million packet/second: scaling global Internet monitoring
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Maria Jose Molina-Contreras
  • Security and Ethics in the Age of Generative AI
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Maria Lowas-Rzechonek

I’ve graduated from philosophy and social science. True to Zed A. Shaw advice from Learn Python the Hard Way, I entered the tech world as an anthropologist with barely enough of the local language to get around and survive. My next step led me to the Django Girls community - first as an attendee, then as a couch, committer and organizer. At 2016, I was a speaker at DjangoCon Europe. I have been working as a Python developer since 2016.

In my free time, I’m involved in the extreme sports of mountain hiking with kids and dancing flamenco.

  • Security and Ethics in the Age of Generative AI
  • How to tackle complex authorization logic (and don't go crazy)
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Mario García

Full-stack Developer. Over 15 years as a speaker at international events and more than 6 years creating technical content for leading tech organizations. Experienced in implementing microservices and APIs, and automating tasks with Python and Bash. Hands-on experience with relational and NoSQL databases. Former participant in community programs such as Mozilla Reps, GitLab Heroes, GitKraken Ambassadors, and HashiCorp Ambassadors. Passionate about Open Source.

  • Localization Made Easy: A Pythonic Approach to Global Applications
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Marlene Mhangami

Marlene is a Senior Developer Advocate specialising in Python and AI at Microsoft, a computer scientist, keynote speaker and explorer. She is the current chair of the Association for Computing Machinery(ACM) practitioner board, was the previous vice chair of the Python Software Foundation and led the first PyCon Africa.

  • The Pursuit Of Purity (The Right Way To Do AI)
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Mateusz Modrzejewski

Mateusz Modrzejewski, PhD - software engineer, researcher, conference speaker, author and co-author of papers on music information retrieval and audio AI. Assistant Professor at the Institute of Computer Science of Warsaw University of Technology, where he leads an Audio Intelligence Lab. Previously at Apple (Music Machine Learning team, Apple Music). Has also worked with research and engineering teams of other Fortune 500 companies, providing AI solutions and analytics.

Apart from his scientific and engineering work, he is also an experienced touring musician, having performed for audiences of up to 150,000 people and having toured in Poland, China, Vietnam, the UK, Germany, Ukraine, Lithuania and Estonia, among others. Some of the artists he has played with include The Dumplings, Grubson, Marek Dyjak, Chłopcy Kontra Basia, Maria Sadowska, Pablopavo i Ludziki, Majka Jeżowska, Michał Milczarek Trio.

  • How Music Generation Actually Works
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Mateusz Sokół

I'm a Software Engineer at Quansight, working on NumPy, pydata/sparse, and other open source projects in the Scientific Python Ecosystem. You can find me on GitHub: https://github.com/mtsokol

  • Building your DSL compiler in Python
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Matthias Kirschner

Matthias Kirschner is President of FSFE. In 1999 he started using GNU/Linux and realised that software is deeply involved in all aspects of our lives. Matthias is convinced that this technology has to empower society not restrict it. While studying Political and Administrative Science he joined FSFE in 2004.

He helps other organisations, companies and governments to understand how they can benefit from Free Software -- which gives everybody the rights to use, understand, adapt, and share software -- and how those rights help to support freedom of speech, freedom of press or privacy.

In his spare time, he has written the book "Ada & Zangemann - A Tale of Software, Skateboards, and Raspberry Ice Cream", which is translated in over 30 languages and meanwhile also available as a movie.

  • A vision for software freedom in 2048
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Michael Seifert

Michael is a trainer and consulting software engineer who helps product teams develop Python software in the cloud. He enjoys deleting code more than writing it and is constantly looking for new ways to improve developer experience and the maintainability of software.

Michael has been enthusiastic for free and open-source software since his teenage years and published his first project in 2006. Nowadays, he maintains the pytest-asyncio library. In his free time, Michael dances Shuffle or struggles with a hardware project.

  • Code organization for non-engineers
  • Code organization for non-engineers
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Michał Karzyński

Michal Karzynski is a graduate of the University of Gdansk and the Medical University of Gdańsk. He was involved in research and development work at the European Molecular Biology Laboratory in Heidelberg and the Technical University in Gdansk. He recently worked as a software architect and data scientist for Intel, specialising in applying neural network models to the domain of sound processing. He is currently acting as the CTO of a new stealth startup, hoping to make it big.
Michal is a frequent speaker at programming conferences and a chairman of the Operators Special Interest Group, part of the Open Neural Network Exchange (ONNX) standardisation committee.

  • Building a Smart Home Device with MicroPython
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Miguel Ángel Fernández Gutiérrez

I’m Miguel Ángel, a Machine Learning Engineer and applied researcher with a background in Computer Engineering and Mathematics. I work at the intersection of computation, artificial intelligence, and real-world systems, using Python both as an engineering tool and as a medium for understanding complex ideas.

My work spans the full lifecycle of intelligent systems: from rapid prototyping and experimentation to production-grade ML services, data pipelines, and scalable APIs. I’m particularly interested in applied language models, ML platforms, and building systems that are reliable, measurable, and maintainable over time.

Outside of production work, I use personal projects as a space to experiment, learn, and build systems end to end — often at the intersection of technology, people, and real-world constraints. These projects range from AI-powered communication tools and real-time data applications to developer utilities, educational initiatives, and research work in computation and logic.

I’m driven by curiosity and by problems that sit at the boundary between theory and practice. Whether building ML systems, exploring computability, or creating tools with social impact, I aim to transform complex ideas into clear, useful, and meaningful solutions.

You can learn more about my work and projects at mianfg.me.

  • Hacking Truth: Python and the Limits of Mathematics
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Mike Fiedler

Mike is a professional engineer with over three decades of experience, having held senior leadership roles at companies including Datadog, MongoDB, LeafLink, Warby Parker, and Paribus (Capital One). He is dedicated to continuous learning and mentoring.

He is a recognized contributor to the tech community, having been a conference speaker since 2012. His accolades include the Awesome Community Chef Award (2016) and being an AWS Container Hero since 2018.

Currently working as the PyPI Safety & Security Engineer at the Python Software Foundation, he devotes his free time to working on open source tools, learning new technologies, and volunteering as a roller derby referee. With a holistic view of systems and software and a passion for problem-solving, Mike helps others navigate the complexities of the tech world.

He can be found on Mastodon, GitHub, and elsewhere online, or wearing stripes at a roller derby game near you.

  • Anatomy of a Phishing Campaign
  • Security and Ethics in the Age of Generative AI
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Mike Müller

Dr. Mike Müller has been working with Python since 1999 and teaching it professionally since 2004. As a trainer at Python Academy (https://www.python-academy.com), he has taught over 580 Python courses totaling more than 1,500 teaching days to thousands of participants worldwide.

Mike has taught more than 75 tutorials at Python conferences, including 29 tutorials at PyCon US over the years. He is known for his hands-on teaching approach, live coding demonstrations, and comprehensive course materials that participants can use as references long after the tutorial ends. His tutorials blend practical examples with solid theoretical foundations, making complex topics accessible and immediately applicable.

Beyond teaching, Mike is deeply involved in the Python community. He has organized conferences including PyCon DE, EuroSciPy, and numerous BarCamps. His contributions to the community have been recognized with the PSF Community Service Award and PSF Fellow status. He serves as chair of the German Python Software Verband.

Mike holds a doctorate in hydrology and brings a scientific perspective to programming education. He believes in learning by doing and creates supportive environments where participants feel comfortable asking questions and experimenting with code.

  • Fast Python Development with uv
  • Fast Python Development with uv
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Mohamed Elmaghraby

I am a Senior Software Engineer at Bloomberg with five years of engineering experience, including three focused on building and optimizing trading systems in Python. My work centers on system design, refactoring, and performance tuning—turning legacy or complex code into reliable, maintainable, and fast systems. I delivered a couple talks at internal engineering conferences, sharing my experiences with code improvement and optimization workflows.
When I am not writing code (much of the time 🙂) I enjoy hiking, practicing origami and riding horses

  • Refactor, Optimize, and Test: Crafting Cleaner Python Code
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Naa Ashiorkor
  • Discussion session
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Nacho

Hi! My friends call me Nacho (yep, like the tortilla chips 🌮) and I am SWE/Data Scientist from Madrid, now based in Berlin.

  • Fast and Furious: 26’s Tooling Stack for a Streamlined Developer Experience
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Nathan Goldbaum

I am a Staff Software Engineer at Quansight, where I am currently working on community support for free-threaded Python. During the course of this project, I led the effort to support free-threaded Python in NumPy and helped add support for free-threaded Python to foundational community Python projects accross the ecosystem. I am also the author or editor of most of the documentation on the Python free-threading guide, which I hope will be a lasting community resource. I am also a member of the NumPy steering council and am an active PyO3 maintainer.

  • What every Python developer should know about the CPython ABI
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Nikita Karamov

Nikita is a self-proclaimed π-shaped developer, proficient in Python in JavaScript, and enthusiastic about everything else. He works as a Full Stack Web Developer, but wishes he could spend all that time contributing to open-source projects.

Nikita lives in a small town in Germany and enjoys cycling and cooking.

  • Should you trust Trusted Publishing?
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Oladapo Jesusemilore Jael

A teen, a student and a beginner with the quest for Python knowledge. A teen, a student and a beginner with the quest for Python knowledge.

  • Python Learning that fits Teen Life
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Oladapo Kayode Abiodun

Kayode Abiodun Oladapo is a seasoned data scientist and a computer science lecturer with over a decade of experience in teaching and research. He currently lectures at McPherson University, where he specialises in information systems and data science. He is presently with the Connect Institute and Achieve Together in the United Kingdom.

He does research in information systems, data science, machine learning, learning analytics, and education management. He has several publications and a computer textbook, "Insight into Computer Studies," for JSS one to three. A member of NCS, CPN, and ACM and an associate member of the Society for Forensic Accounting and Fraud Prevention. He has served as the Acting Director, ICT-RMU and the acting Head of Department, Computer Science, College of Computing, McPherson University.

He is actively involved in mentoring students in Python for data science and community services. He is the campus adopter for Data Science Nigeria, McPherson University, as well as the Campus Guidance for PyClub McPherson University, and a member of the EuroPython Society. He oversees the affairs of Python Starter Hub for beginners in Python programming.

As an advocate for innovative learning and emerging technologies, Oladapo has led various national and international workshops on data science and artificial intelligence. He has mentored dozens of undergraduate and postgraduate students and has published research papers in peer-reviewed journals.

Visit here for more details: https://sites.google.com/view/kayodeabiodunoladapo.

  • Heuristic-Rule Based Model for Packet Loss Inference in IIoT Networks
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Olha Poliuliakh

I am a Data Scientist at DataForce Solutions, where I also work on LUML - a platform our team is building.
My main professional focus is on merging traditional ML, Agentic AI and MLOps.

  • Why Coding Agents Fail at ML (and How to Fix It)
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Pablo Galindo Salgado

Pablo Galindo Salgado works in the Python team of Hudson River Trading. He is a CPython core developer and a Theoretical Physicist specializing in general relativity and black hole physics. He is currently serving on the Python Steering Council in his 6th term and he is the release manager for Python 3.10 and 3.11. He has also a cat but he does not code.

  • Lazy imports and the art of interpreter procrastination
  • Core.py recording with Guido van Rossum
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Paul Everitt

Paul is a Developer Advocate at JetBrains, focusing on Python and the Web. Before that, Paul was a co-founder of Zope Corporation, taking the first open source application server through $14M of funding. Paul has bootstrapped both the Python Software Foundation and the Plone Foundation. Prior to that, Paul was an officer in the US Navy, starting www.navy.mil in 1993.

  • Was, Is, Will Be: Python History, Software Engineering, And AI Our Way
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Petr Viktorin

As a CPython core developer, review pull requests, triage issues, write PEPs, implement features -- and host live streams nerding out about Python's grammar and documentation.

Offline, I spend time with my family -- or with a screwdriver, saw, or soldering iron.

  • Python Syntax Diagram
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Piotr Rybak

Piotr Rybak has almost 15 years of experience in machine learning. He has gained experience working in academia, start-ups, and larger companies. Currently, he focuses on using computer vision to recognize LEGO bricks. He is an active member of the Polish language models community and has co-authored works such as the KLEJ benchmark and the HerBERT and plT5 models. In his free time, he builds with LEGO bricks.

  • Is Object Detection Dead? A Case for Recognizing LEGO Bricks
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Raúl Cumplido Domínguez
  • Stop Guessing, Start Understanding: How Arrow and Pandas Exchange Data
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Reuven M. Lerner

Reuven is a full-time Python trainer, teaching at companies around the world and also via his LernerPython online platform. Reuven publishes both Better Developers (about Python) and Bamboo Weekly (Pandas puzzles based on current events). He wrote both Python Workout and Pandas Workout, published by Manning, and is currently writing AI-Assisted Python for Nonprogrammers for O'Reilly.

  • Let's write some decorators!
  • Let's write some decorators!
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Rodrigo Girão Serrão

Hi, I'm Rodrigo Girão Serrão from sunny Portugal 🇵🇹.

I'm a prolific Python author and speaker, with multiple books published independently and dozens of talks and tutorials given at the largest Python conferences in the world. I also blog frequently about Python and publish two Python newsletters: the weekly mathspp insider 🐍🚀 and the daily Python drops 🐍💧.

I have extensive experience teaching people from all walks of life – from kids in school, to professionals in various industries, to retirees – and there is a clear consensus that my students enjoy my clear examples, the live-coding during my lessons, and most surprisingly: my quirky sense of humour.

  • Cooking with asyncio: an introduction to asynchronous programming
  • A tour of the module `itertools`
  • Cooking with asyncio: an introduction to asynchronous programming
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Sangarshanan

My name is Sangarshanan and I am a Software Engineer from planet Earth. I love making stuff that helps and amuses me in equal measure and standing upside down while holding a banana. When I'm bored you can find me making absurdist memes, yet another spotify playlist or staring straight into the void

I am currently pursuing a masters in Music Technology at Universidad Pompeu Fabra. I am also a livecoder performing regularly at events and helping organize creative coding workshops!

  • Build a Synthesizer with Python
  • Build a Synthesizer with Python
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Savannah Ostrowski

Savannah Ostrowski is a Python Steering Council member, the Python 3.16 & 3.17 Release Manager, and a CPython Core Developer. She contributes across several areas of CPython, including the JIT compiler, the argparse module, WASI support, and more. She also works at FastAPI Labs, where she builds FastAPI Cloud and contributes to open source projects across the Python ecosystem.

  • The coolest feature in Python 3.14: sys.remote_exec()
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Sebastian Buczyński

Software Engineer and Architect. Spent the whole career with polyglotic distributed systems. He wrote a book about implementing the Clean Architecture in Python.
Bottega IT Minds trainer/consultant and AI Engineer in Replika.

  • Navigating waters of background jobs and queues in Python as of 2026
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Sebastian Burzyński

Sebastian Burzyński is a CTO, cloud architect, and engineering leader specializing in scalable distributed systems and modern cloud infrastructure. At BlueRider.Software, he leads technical strategy and oversees multi-cloud architectures spanning AWS and Google Cloud, Kubernetes environments, and production-grade DevOps pipelines.

With a strong background in both hands-on engineering and executive decision-making, Sebastian works at the intersection of technology, risk, and business scalability. He advocates for responsible AI adoption in software development, promoting structured AI usage, proper governance, and engineering oversight to prevent technical debt, security issues, and operational instability.

  • The hidden cost of vibe coding
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Sergi Porta

Sergi Porta is a Python Team Lead at Manychat, where he leads the integration of AI features into the Manychat product, assembled a team of Python developers from scratch, and makes the architectural decisions behind a system that powers millions of interactions between accounts and their subscribers. His role combines technical leadership, onboarding, and helping the team grow. Previously he was an Engineering Manager at a medical imaging company, first engineer at an early-stage startup, and started his career as a software engineer at HP. 10+ years across healthcare, consumer tech, and developer tooling, with a strong interest in engineering management and helping teams perform at their best.

  • Surviving LLM Traffic Spikes: Routing, Rate Limits, and Failover in Python
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Seth Michael Larson

Security Developer-in-Residence at the Python Software Foundation since 2023. Python core developer and PSF Fellow. Maintainer of several open source Python projects including urllib3, Requests, and Truststore. Seth writes about open source, security, Python, and retro video games on his blog.

  • Security and Ethics in the Age of Generative AI
  • Learning from the not-so-secret Python security "cabal"
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Stefanie Molin

Stefanie Molin is a software engineer at Bloomberg in New York City, where she tackles tough problems in information security, particularly those revolving around data wrangling/visualization, building tools for gathering data, and knowledge sharing. She is also a core developer of numpydoc and the author of “Hands-On Data Analysis with Pandas: A Python data science handbook for data collection, wrangling, analysis, and visualization,” which is currently in its second edition and has been translated into Korean and Chinese. She holds a bachelor’s of science degree in operations research from Columbia University's Fu Foundation School of Engineering and Applied Science, as well as a master’s degree in computer science, with a specialization in machine learning, from Georgia Tech. In her free time, she enjoys traveling the world, inventing new recipes, and learning new languages spoken among both people and computers.

  • Process, Analyze, and Transform Python Code with ASTs
  • Process, Analyze, and Transform Python Code with ASTs
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Sviatoslav Sydorenko (Святослав Сидоренко)

Sviatoslav (webknjaz) is a Principal Software Engineer at Red Hat on the Ansible Core Team. A PyPA member, a CPython Triager, he maintains aiohttp, CherryPy, pip-tools, and many other FOSS Python projects. He authored the PyPA-blessed pypi-publish GitHub Action and alls-green (adopted by CPython), and designed CPython's current modular CI/CD layout. He is passionate about applying software engineering principles to CI/CD automation and reducing the maintenance burden across the Python ecosystem.

  • reusable-tox.yml: Five Patterns to Eliminate CI/CD Boilerplate
  • Defending Open Source from "AI" Slop: A Maintainer's Practical Guide
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Sylwia Budzynska

Sylwia ‘BlazingWind’ Budzynska is a security researcher at GitHub Security Lab, where she hunts for vulnerabilities in open source software, specializing in Python and at-scale static analysis tooling. She has found 80+ CVEs and spoken at a number of conferences and events, including The Hack Summit Warsaw, OrangeCon Amsterdam, CoderGirls Aarhus, 0-day Aarhus and others.

Most of her research is available on https://github.blog/author/sylwiabudzynska/ and most of her advisories on https://securitylab.github.com/advisories/.

In free time, Sylwia enjoys dance classes, reading fantasy, hiking and gaming.

  • Introduction to security research. Find a CVE with CodeQL.
  • Security and Ethics in the Age of Generative AI
  • Introduction to security research. Find a CVE with CodeQL.
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Tereza Iofciu

Tereza Iofciu is a data and AI expert, leadership coach, and PSF Fellow with 15+ years of experience leading data and product teams at neuefische, FREE NOW, and New Work (XING). She helps professionals lead and adapt in the age of AI through her Data Diplomat Framework™, bridging technical depth with human leadership.

  • Leading Under Pressure
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Thom Lane

Thom has spent the last decade building and scaling machine learning systems in Python. He is a Member of Technical Staff at Modal, where he develops new Sandboxes features, with a focus on improving the experience for reinforcement learning workloads. At AWS, Thom worked on deep learning frameworks and helped new users get started with them too, becoming a certified Coursera instructor along the way.

  • Write async. Get sync for free
  • Write async. Get sync for free.
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Thomas Wouters

Thomas is a long-time Python core developer, Steering Council member, and Software Engineer at Meta who currently works on Python internals and Free-threaded Python tooling. Also, cats.

  • Free-threaded Python: past, present and future
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Tobias Wrigstad

I am a professor in computer science at Uppsala University where I do research on programming language design and implementation. In the last years, my main interests have been memory management and concurrency safety which I have explored through type systems and run-time systems. In the context of Python, I currently work on PEP795, and its intended continuation (see e.g. https://dl.acm.org/doi/10.1145/3729313), on garbage collection and data-race freedom in Java, and secure compilation for Erlang. Python user since 2000.

  • Immutability: Fast and Safe sharing of Data across Subinterpreters
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Tomas Roun

I am a software engineer at CERN in Geneva, currently working on Indico,
an open-source software for meeting and conference management and
also SWAN, a platform for interactive analysis based on JupyterHub.

My passion for software and Open Source goes beyond my work. I am an active
contributor to many open-source projects such as CPython, Babel and many more.
In my free time I also like to design and build mechanical keyboards and print cool things
with my 3D printer.

  • Become a Python Core Developer in 3 Easy Steps
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Veit Heller

I’m a technologist at heart, though life often leads me into managerial roles. For the last 15 years, I’ve built products, led and advised companies, published papers, and shared my insights at conferences and in articles on the web.

  • AI Architecture Katas: Learning by Building Small Models in Plain Python
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Vinícius Gubiani Ferreira

Love to code, to read other people's code, and to help others achieve what they want with code. Be it directly or by guiding them to find out for themselves.

  • Load testing 1-on-1: discovering the limits of your system
  • Load testing 1-on-1: discovering the limits of your system
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Vlad-Stefan Harbuz

I'm an Open Source sustainability researcher, and the Executive Director of the Software Stewardship Lab, a non-profit applied research lab dedicated to ensuring the stability of the Open Source ecosystem we all rely on.

I'm also the Director of the Open Source Pledge, which is creating a new social norm of companies paying the maintainers they depend on, and has raised $7,156,281 for maintainers since launching.

Additionally, I am doing a PhD at the University of Edinburgh on the ethics and epistemology of Open Source software.

I write on vlad.website. I love cats and birds.

  • Binary Dependencies: Identifying the Hidden Packages We All Depend On
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Vladimir Slavov

Vladimir is a lawyer and a programmer. He works at Bosch's Open Source Program Office, focusing on open source management and compliance. He is an AWS Certified Solutions Architect Associate, an AWS Certified AI Practitioner, and an AWS Certified Cloud Practitioner.

He co-chairs the OpenChain Meridian 22 Work Group. He is also a committer on the Eclipse Apoapsis Project.

  • How to Talk With Your Legal Department About Open Source
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Vladyslav Fedoriuk

Vladyslav Fedoriuk is a software engineer dedicated to software design, database optimization, and the art of writing testable code. He is a strong advocate for Clean Architecture and building composable software systems within the Python ecosystem.

Through his work on data-oriented applications, Vladyslav has gained extensive experience in navigating the complexities of high-throughput backends. He is passionate about and has a keen interest in designing applications for data-intensive workloads, focusing on creating robust and scalable data-driven solutions.

Over the last two years, his main focus has been the Generative AI landscape and the Model Context Protocol (MCP) ecosystem. Vladyslav is deeply involved in architecting and implementing both MCP Clients and Servers, building innovative solutions that bridge the gap between AI applications and structured data. An active participant in the Kraków tech community, he is an enthusiastic speaker and enjoys sharing his knowledge at local meetups.

  • Powering Up Your Types with Annotated
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Vyron Vasileiadis

Vyron Vasileiadis is a Technical Lead at Qilimanjaro Quantum Tech, where he designs and develops quantum software infrastructure for superconducting quantum systems. His work focuses on novel abstractions and paradigms that make quantum hardware programmable across the full stack — from quantum control at the pulse level, through SDKs that expose it to scientific users, to integration with classical HPC.

He is also pursuing a PhD in quantum control, focused on pulse optimization and gate design for high-fidelity operation of superconducting qubits. Alongside his engineering and research work, he is a regular speaker, trainer, and mentor, and serves on the Advisory Board of DevNetwork.

  • Learn Quantum Computing with QiliSDK: From Circuits to Pulse-Level Control
  • Learn Quantum Computing with QiliSDK: From Circuits to Pulse-Level Control
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Will Vincent

I'm a Developer Advocate at PyCharm/JetBrains and a longtime member of the Django community. I've written three books on Django, co-host the Django Chat podcast, and co-write the Django News Newsletter. In the past, I've served as a Django Board Member (2020-2022) and was recently named a Python Software Foundation Fellow.

  • Deploying Python Web Apps in 2026
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William Woodruff

William Woodruff is a Member of Technical Staff at OpenAI (Astral), where he works on high-performance, secure tooling for the Python ecosystem. Previously he worked on similar tooling at Astral; prior to that he was an Engineering Director at Trail of Bits, where he was responsible for high-impact security contributions to open source ecosystems via the open source ecosystem security group.

Outside of work, William is the primary maintainer of zizmor, a maintainer of Homebrew, Sigstore, and pip-audit, and a long-term contributor to Python cryptography (PyCA) and packaging (PyPI, PyPA). He maintains a website at yossarian.net and a blog at blog.yossarian.net.

  • Securing Python for the next decade
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Wojtek Erbetowski

Wojtek Erbetowski is a Site Lead and Engineering Manager at Island, where he's building a new engineering hub in Warsaw. Over nearly 20 years in software engineering, he's worn many hats — from CTO at Codility (the technical assessment platform used by thousands of companies worldwide) and Growbots, to Engineering Manager at Google Cloud, to hands-on engineer across Python, Java, and JavaScript ecosystems. He's interviewed hundreds of software engineers and scaled teams from scratch, including growing one from 10 to 35 people in eight months. Wojtek co-founded L8 Conference for Staff+ engineers and has been organizing meetups and conferences across Poland for over a decade, including Warsaw JUG, Mobile Warsaw, and HackWAW. When not coding or hiring, he's probably running or tending to his small farm in Podlasie.

  • You Don't Need to Solve It: What Actually Gets You Hired in Tech
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olusola akinsulere

Olusola Lanre Akinsulere is an engineering leader and backend specialist who builds reliable systems at scale. He has led teams across fintech, commerce, and platform products, delivering services used by millions of users and processing high-volume transactions. His work spans distributed systems, payments infrastructure, and data-driven platforms, often stepping in to stabilize complex codebases and ship critical features under tight timelines.

Olusola currently serves as Engineering Lead at Retailloop, where he focuses on using AI and robust backend architecture to power commerce in emerging markets. He enjoys turning messy real-world problems into clear technical plans, mentoring engineers, and bridging product vision with execution.

His interests include system design, developer productivity, and practical applications of machine learning in everyday products. Outside work, he explores fitness, personal projects, and tools that make teams move faster.

  • Zero to Pipeline: When Data Connectors Just Work
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Łukasz Langa
  • Core.py recording with Guido van Rossum