James Hetherington @jamespjh.bsky.social Data and computers and code and people.
Vlad-Stefan Harbuz 🌸 @vlad.website Protecting the Open Source infrastructure the world depends on.
https://vlad.website
✸ @stewardshiplab.org Executive Director
※ @opensourcepledge.com Director
※ ed.ac.uk Philosophy PhD Researcher
※ nsoc.engineering.nyu.edu Leadership Team
Software Stewardship Lab @stewardshiplab.org A non-profit applied research lab ensuring the stability of the Open Source software ecosystem we all rely on.
✸ https://stewardshiplab.org
Denny Perez @dennyperez18.bsky.social Software QA Analyst | Director & Fellow @python.org | Conference and Community Organizer | Wife & Mom 👶 3x | Latina 🇩🇴🔗🇨🇦
#Python🐍 #PyLadies👩💻 #WTMAmbassador💜
Rachel Kerestes @kerestes.bsky.social Perpetually curious.
Scientist by training and temperament.
Tennis player. Ocean lover. Occasional mischief-maker. Executive Director @numfocus.bsky.social
Views mine.
Quansight @quansight.com Forging the bridge between enterprise innovation and open source sustainability.
Elaine Wong @elainew.bsky.social My main joys in life are:
video streaming, conference organizing
, coding, directing tv, bicycles and cats.
We might have met at srccon, nicar, csvconf, a python conference or at a pyladies meetup.
I’m also a PSF Fellow and Chair of PyCon US 2025-2026
Matt Harrison @dunder-matt.bsky.social Python and data corporate trainer, author, ...
Sandrine Pataut @sandrinep.bsky.social Pythonista 🐍 Data Scientist 💻 @AIClubGenderMin @HumbleData👩🏻💻 Back from the other side of the Channel 🇫🇷🇬🇧 Maths • Cooking • Sport & Outdoors- She/Her
Loren @lorencrary.bsky.social Deputy Exec Director @python.org 🤠🐍 Opinions and tiny dog my own. she/her
Carly Strasser @carlystrasser.bsky.social Formerly marine bio & ecology; now working adjacent to academia in the philanthropy, data, infrastructure, and open science space. she/her
Ngazetungue Muheue @muheuenga.bsky.social Python Namibia | PyCon Namibia | ThePSF Fellow | @DjangoConAfrica
| Ubuntu | Software Developer | 🇳🇱🇩🇪🇬🇭🇿🇦 🇨🇿🇲🇾🇬🇧🇺🇸🇹🇿🇪🇹
Lucy Liu @lucyleeow.bsky.social Software engineer at Quansight Labs.
Scikit-learn and Sphinx-Gallery dev.
Reshama @reshamas.bsky.social • Statistician
• Data science / Open Source: @dataumbrella.org
• Videos: https://youtube.com/@dataumbrella
Chris Noring @chrisnoring.bsky.social AI and JS @ Microsoft. Public speaker, published author on JavaScript, AI and Go
NumFOCUS @numfocus.bsky.social Open Code = Better Science NumFOCUS is a 501(c)(3) nonprofit that supports and promotes world-class, innovative, open source scientific computing.
Jaime Rodríguez-Guerra @jaimergp.dev Another PhD captured by open source.
⇒ Core team at @conda-forge.org.
⇒ Steering council at @conda.org.
⇒ Staff Software Engineer at @quansight.com.
⇒ Blogging at rjai.me.
he/him
Omar Rivasplata @omarrivasplata.bsky.social Machine Learning Theory | Maths & Stats
Deep Thinker | Posts/reposts might be non-deep
Carpe espresso ☕
Daniel S. Katz @danielskatz.org Chief Scientist @ NCSA, Res. Prof. @ CS & iSchool, @ U Illinois Urbana-Champaign
He/him
Works on: computational & data science: software opensource systems tools policy practices scholcomm FAIR RSE
more active on: @danielskatz@fediscience.org
Daniela Saderi, PhD @neurosarda.bsky.social 🇮🇹🧠🔓🔭 she/her | Executive director and co-founder of PREreview @prereview.bsky.social | Neuroscientist | Coalition builder | Human in training
Brigitta Sipőcz @bsipocz.bsky.social Open-source scientific software developer and maintainer, astronomer. Works at Caltech/IPAC; SSI and BSSw Fellow.
Weekend warrior skier and lover of mountains.
Kirstie Whitaker @kirstiejane.bsky.social ☀️ Executive Director for @ucbids.bsky.social
💽 Previously: Director for #OpenSource Tools, Practices and Systems at The Alan Turing Institute
🌱 Founder @turingway.bsky.social
🌎 #Inclusive #Communities
💕 Solo mum by choice
Alejandra Gonzalez Beltran @agbeltran.bsky.social 
conda @conda.org conda is a multi-platform and language-agnostic open source package management and environment management ecosystem.
⇒ https://fosstodon.org/@conda
⇒ https://conda.org/
Robert Haines @rhaines.bsky.social Director - Research IT, University of Manchester. Founding Trustee, Society of Research Software Engineering. Opinions mine.
mborus @mborus.bsky.social 👋Hi! I'm more active on 🦣 http://mastodon.social/@mborus.
I do things with software. For ⛴️ ferry companies. Using 🐍Python & MS Dynamics NAV. I❤️🎲 board games, 🚲 cycling, 🍕🍲 cooking, 🇩🇰 🇪🇸 languages, 🇪🇺📺 Eurovision, ... Posts are in 🇬🇧/🇩🇪.
EuroPython 2026, Kraków @europython.eu The European Python Conference - by the community & for the community.
Jodie Burchell @t-redactyl.bsky.social Former clinical psychologist, current data scientist. Developer 🥑 at JetBrains. Loves data, cats and dinosaurs. Opinions are my own.
Python Bytes @pythonbytes.fm A Python podcast covering recent developer headlines. Hosted by @mkennedy.codes and @brianokken.bsky.social. Listen to all the episodes and subscribe at https://pythonbytes.fm/
KwonHan Bae ( KO only ) @darjeeling.bsky.social Pythionisa
Korean Speaking Only Account
Christopher Neugebauer @chrisjrn.fyi Man about the world; Expatriated Tasmanian living in California; conference organiser: (@NorthBayPython.org) previously (PyCon AU) and linux.conf.au; #python fan; multiple @python.org hats; queer; 💜 @robin.riley.pub
see also: @fedi.chrisjrn.fyi
Emmy Tsang @emmy-ft.bsky.social Dir Finance & Ops at Invest in Open Infrasturcture, ex OLS, TU Delft Library + eLife. Personal views here. She/her. 🇭🇰🇬🇧🇮🇹🇳🇱 @emmyft@mastodon.cloud
Chris Laffra 🤓🌷🚲 @laffra.bsky.social CEO of PySheets
Alex Strick van Linschoten @strickvl.bsky.social ML Engineer (@ ZenML), researcher (& author of a few books).
Justin Kiggins @neuromusic.bsky.social Child of the American West. AI x Bio. he/him. Opinions my own. Don't Texas my Arizona.
pytest.org @pytest.org The pytest framework makes it easy to write small tests, yet scales to support complex functional testing for applications and libraries.
http://github.com/pytest-dev/pytest
Also on https://fosstodon.org/@pytest
Dr Sasha Luccioni @sashamtl.bsky.social Climate & AI Lead @HuggingFace, TED speaker, WiML board member, TIME AI 100 (She/her/Dr/🦋)
Emily M. Bender @emilymbender.bsky.social Book: https://thecon.ai
Web: https://faculty.washington.edu/ebender
Bernát Gábor @gjbernat.bsky.social Senior Software engineer @Bloomberg (from 🇭🇺🇷🇴🇬🇧), living in Los Angeles 🇺🇸 @ThePsf fellow. Maintainer of many - http://bernat.tech/about (tox, virtualenv,...) Python packages. Opinions my own.
PyCon US @pycon.us PyCon US is a community-focused conference for Python users and developers. Join us in Long Beach, CA from May 13 - May 19, 2026!
Emma @emmatyping.dev Python Core Dev & Rust for CPython co-lead. mypy core team. Former quantum compiler engineer, now at NVIDIA working on Python & packaging. Opinions my own.
🏳️⚧️
https://emmatyping.dev
Masto: @emmatyping@hachyderm.io
Profile pic by Caleb Rippetoe
she/her
Chris Withers @chris.withers.org Python, music, bit of BBQ and things…
Irit Katriel @iritkatriel.bsky.social CPython Core Dev. Views are my own.
Steve Silvester @stevesilvester.bsky.social Jupyter maintainer @ MongoDB. Opinions are my own. 
M B @mbussonn.bsky.social Python Dev – If you know who I am, feel free to follow me – if not I'm probably not interesting, and a bit private.
Society of RSE @society-rse.org The Society for Research Software Engineering; recognising the role of software in research, improving software skills, promoting collaboration and creating career paths for RSEs.
Join us: https://society-rse.org
Links: https://linktr.ee/researchsofteng
QuantStack @quantstack.bsky.social A team of open-source maintainers and engineers providing solutions and support for open-source projects used by millions worldwide. #Jupyter, #condaforge, #Mamba, #ApacheArrow, #Xtensor, and more.
Anthony Chu @anthonychu.ca dev ➡️ dev advocate ➡️ product manager @ Microsoft on Azure Functions.
Prev. @azurecontainerapps.io & Static Web Apps.
🍁 Vancouver, BC
Opinions are mine. he/him ☁️🏒🧋🚲😷
Sarah @techielass.bsky.social ☁️ Microsoft employee
🎤 ITOps/Cloud/Hybrid
💻 Hashicorp Ambassador & GitKraken ambassador
✍ Thought Leader & Storyteller
🐄 Farming enthusiast
👀 Views are my own
InnerSource Commons @innersource.bsky.social The community for InnerSource practitioners. www.innersourcecommons.org
Eddie Jaoude | EddieHub @eddiejaoude.bsky.social Open Source
Raspberry Pi @raspberrypi.com We make very small computers which you can buy from just $4. We are also the literal coolest.
Ben Nuttall @bennuttall.bsky.social Software engineer based in Manchester
ProfBrianCox @profbriancox.bsky.social Professor of Particle Physics at The University of Manchester and Royal Society Professor for Public Engagement in Science
Thomas Dohmke @ashtom.bsky.social Building the world's next developer platform @entire.io. 🚀 Former CEO @GitHub.com.
Dr. Sara El-Gebali (yalahowy) @yalahowy.bsky.social Website: https://selgebali.netlify.app/
Founder of OpenCider & FAIRPoints, Metadata Specialist, Project Lead, Scientist & Community Builder.
She/Her
Personal account = personal views
#OpenScience #FAIR #Cats #NailArt #SpecialityCoffee
Yuan Tang @terrytangyuan.xyz Senior Principal Software Engineer at Red Hat AI | Open Source Leader at KServe, Argo, Kubeflow, Kubernetes, CNCF | Maintainer of XGBoost, TensorFlow | Keynote Speaker | Author | Technical Advisor
More info: http://terrytangyuan.xyz
We are hiring!
Nithya Ruff @nithyaruff.bsky.social Mother, Open Source Leader, Vegetarian, Traveler, Inclusion Ambassador; Head of OSPO At Amazon, Chair of Board at The Linux Foundation. 
æva black @aeva.online F/OSS hack of minor notoriety. former CISA, MSFT, OSI, OpenStack, & more.
🏳️⚧️ & 🏍️ & 🇪🇺.
all opinions 💯 mine.
The Linux Foundation @linuxfoundation.org A nonprofit organization enabling mass innovation through open source. #linux #kubernetes #riscv #hyperledger #anuket #openssf #openjs #o3de and more!
SustainOSS @sustainoss.bsky.social 
FOSDEM @fosdem.org https://fosdem.org
OpenSSF @openssf.org Open Source Security Foundation (OpenSSF)
Together, we're securing the open source ecosystem
http://openssf.org
#OSSSecurity #OpenSSFCommunity
Sovereign Tech Agency @sovereign.tech Strengthening digital infrastructure & open source ecosystems in the public interest. Home of the Sovereign Tech Fund, Sovereign Tech Resilience, Sovereign Tech Fellowship, & other programs supporting critical FOSS technologies.
https://www.sovereign.tech
Lorenzo 'kelset' Sciandra @kelset.dev Staff Eng @ Shopify (building Shop)
Former @reactnative.dev core maintainer
Ex @microsoft.com @sovereign.tech
open source • tech • mental health • agentic
🕸️ https://kelset.dev/
🏠 London, UK
Ink & Switch @inkandswitch.com An independent research lab exploring the future of tools for thought.
We envision a new computer that amplifies human intelligence. A system that helps you think more clearly, collaborate more effectively, and is available anywhere and anytime.
Margaret Mitchell @mmitchell.bsky.social Researcher trying to shape AI towards positive outcomes. ML & Ethics +birds. Generally trying to do the right thing. TIME 100 | TED speaker | Senate testimony provider | Navigating public life as a recluse.
Former: Google, Microsoft; Current: Hugging Face
Dr. Casey Fiesler @cfiesler.bsky.social information science professor (tech ethics + internet stuff)
kind of a content creator (elsewhere also @professorcasey)
though not influencing anyone to do anything except maybe learn things
she/her
more: casey.prof
Paolo Melchiorre @paulox.net Independent Python/Django consultant · Django & Python ecosystem contributor · DSF board member · PSF Fellow · Django on the Med co-founder · Python Pescara co-founder · PostgreSQL advocate · Free Software advocate · Conference speaker
Martin Kleppmann @martin.kleppmann.com Associate Professor at @cst.cam.ac.uk, researching decentralised systems and security protocols. Advisor to the Bluesky team. Wrote “Designing Data-Intensive Applications” (O’Reilly). he/him
Sean Tibor @seantibor.com Co-host of @teachingpython.fm podcast and also a cloud engineer for a very large snack company. My opinions are my own.
Talk Python Podcast @talkpython.fm The #1 Python-focused podcast covering the people and ideas in Python. Created and hosted by @mkennedy.codes. Get all the episodes at https://talkpython.fm/episodes/all
Dr Becky Smethurst @drbecky.bsky.social Astrophysicist studying how supermassive black holes affect galaxies (s/h). I get overly enthusiastic about space (and cats) on YouTube: http://www.youtube.com/drbecky
Sarah Abderemane @sabderemane.bsky.social Software Engineer | Other titles (she/her) - Microsoft MVP, PSF Member & DSF Member, former Vice President but posts are my own 🐍 🇫🇷 ✨
sarahabd.com
Posts about Django, python, a11y and more. Lang: EN, FR.
William Woodruff (1.3.6.1.4.1.55738) @yossarian.net skeeting in accordance with the universal law.
yossarian.net / blog.yossarian.net
Amethyst 🌸 @amethyst.cat 🐍 Python dev tools, Bay Area remote
🌸 find me somewhere else: https://amethyst.cat
David Lord @davidism.bsky.social Lead maintainer of Flask, Jinja, Click, and others on Pallets. Python Software Foundation @python.org Fellow. he/they
https://davidism.com
https://github.com/davidism
https://mas.to/@davidism
Diego Russo @diegor.it Python Core Developer 🐍
Principal Software Engineer @developer.arm.com
Posts are my own. He/him/his. 🇬🇧
More active on http://linkedIn.com/in/diegor
Christopher Bailey @digiglean.bsky.social Host of Real Python Podcast - Guitars, Dogs, Photography, Movies, Creativity - Python Software Foundation Fellow
scikit-learn @scikit-learn.org Machine learning in Python • Open Source
https://scikit-learn.org
Ian Goodfellow @ian-goodfellow.bsky.social Research Scientist at DeepMind. Opinions my own. Inventor of GANs. Lead author of http://www.deeplearningbook.org . Founding chairman of www.publichealthactionnetwork.org
Juan Nunez-Iglesias @jni.fosstodon.org.ap.brid.gy Core dev and co-founder napari.org
Core dev scikit-image.org
Co-author elegant-scipy.org
Research Fellow at https://www.monash.edu/researchinfrastructure/eresearch […]
[bridged from https://fosstodon.org/@jni on the fediverse by https://fed.brid.gy/ ]
Open Source Initiative @opensource.org The steward of the Open Source Definition, the foundation of the modern software ecosystem. We build a world where the freedoms and opportunities of Open Source software can be enjoyed by all. #OpenSource
Mark Collier @markcollier.me Austin Powered. OpenStack co-founder, OpenInfra Foundation COO, ex Rackspace & Yahoo! open source for fun & profit.
Open Source AI early and often
@sparkycollier on twitter and elsewhere
Links: markcollier.me 
Leo Boytsov @srchvrs.bsky.social Machine learning scientist and engineer speaking πtorch & C++ (ph-D CMU) working on (un)natural language processing, speaking πtorch & C++. Opinions sampled from MY OWN 100T param LM.
Carlos Scheidegger @cscheid.net Engineer at Posit, technical lead for quarto.org
Touching grass by learning Brazilian music. feet in Minneapolis, heart in some random Brazil beach town I don't even know yet
On hiatus because 2026. DMs open but do please try to be normal out there
Grant Stoner @supercrip1994.bsky.social Award-winning disability reporter | Words:
CanIPlayThat, Fanbyte, IGN, LauncherWP, WIRED etc. | email: Grantthedisabledgamer@gmail.com (he/him)
Newsletter: https://accessgranted.ghost.io
Portfolio: https://muckrack.com/grant-stoner-1
katey @kateypretzel.bsky.social counting days
vanessa maki @theblackbuffy.bsky.social blerd, bi (she/her), horror & anime weirdo, writer/critic, author of "girlhouse", artist, aew sicko, contributor for @butwhytho.net etc, mentally & chronically ill, audhd
find my other links here: https://bio.site/theblackbuffy
But Why Tho? @butwhytho.net Butwhytho.net is an independent media outlet covering video games, film, TV, anime, and comics.
🎬 Film/TV reviews on Rotten Tomatoes
🎮 Game reviews on Metacritic, Open Critic, and CriticDB
Email us: info@butwhytho.net
Kate Sánchez ➡️ Gamescom @ohmymithrandir.bsky.social EIC & Co-Owner @butwhytho.net
Bylines: MMORPG, MtGSalvation, IGN
9-5: BizOps @ Owlchemy Labs
5-9: Film/TV/Video Game Critic
24/7 Chingona
Sports Girlie
Freelance games consulting (mock reviews, sensitivity reading, etc)
📍Austin, TX
💌 kate@butwhytho.net
Dane Hillard @dane.dev Artsy, fartsy, musical computer nerd building modular software for @jstor.bsky.social freaks and geeks.
Wrote Practices of the Python Pro 🐍📘 and Publishing Python Packages 🐍📦⬆️
https://dane.dev
Benjamin Root @weathergod.bsky.social Senior Scientific Programmer at AER. Python guru. Matplotlib developer
Mastodon: https://fosstodon.org/@WeatherGod
GitHub: https://github.com/WeatherGod
LinkdIn: https://www.linkedin.com/in/benjamin-v-root/
Was weather_god at the bad place.
(he/him)
Alex Waygood @alexwaygood.bsky.social Software dev at OpenAI (formerly Astral) 🦀. Sometimes do freelance journalism: Guardian, Telegraph, openDemocracy. Python core dev in my spare time 🐍. Studied 🎶 a while back.
@glemaitre58.bsky.social @glemaitre58.bsky.social