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Jarek Potiuk reposted thisJarek Potiuk reposted thisNot all open source is created equal ⚖️ When evaluating which open source project to use, you should consider the openness level of the project. Questions to ask yourself: 🤔 1️⃣ What would happen to the project if the creator goes out of business or gets acquired? 2️⃣ What happens if the owner decides to change the project's license? 3️⃣ What happens if you want to contribute a feature that conflicts with the company's roadmap? Evaluate smart! Always add openness level as criteria in your research. 🔍
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Jarek Potiuk reposted thisJarek Potiuk reposted thisIn the open source world, while code contributions often take the spotlight, the ecosystem thrives on the crucial work of non-technical contributors. This talk by Lahari Chowtoori delves into their emotional and professional journeys, from navigating code-centric communities to becoming essential project pillars. Join us for this and other exciting sessions at #FOSSDesign on March 18 in Berlin: https://lnkd.in/dJDE7eKg The conference is supported by Penpot.
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Jarek Potiuk reposted thisJarek Potiuk reposted thisCHARLOTTE, LET’S GO 🚀 AI is moving fast. Are you keeping up? Come learn how to run AI workloads with a best-in-class orchestration framework, hear how Novant Health handles critical healthcare data at scale, and connect with other folks building cool things in tech. 🍻 Free food and drinks, great people, real-world AI + Airflow insights. Join us for the AI-rflow Meetup: Operationalizing AI with Airflow on Thursday, April 2 (5:30 PM) at The Olde Mecklenburg Brewery. Don't miss it, we'd love to have you! https://lnkd.in/eTMQ3kKJAI-rflow Meetup: Operationalizing AI with Airflow, Thu, Apr 2, 2026, 5:30 PM | MeetupAI-rflow Meetup: Operationalizing AI with Airflow, Thu, Apr 2, 2026, 5:30 PM | Meetup
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Jarek Potiuk reposted thisJarek Potiuk reposted thisWow, what an incredible experience at my first #FOSSBackstage! I am still buzzing from the energy in Berlin. For my first time attending, I was blown away by the "vibe"—it’s rare to find a space that is simultaneously filled with such seasoned, heavyweight practitioners and yet feels so incredibly friendly and encouraging. A few moments that really stuck with me: The Reality Check: Æva Black’s keynote on "Secure by Design" was a masterclass. Æva walked us through the history and showed how regulations could improve security across the ecosystem. We’ve under-invested in the security of our digital commons for 20 years, and seeing how the Cyber Resilience Act (CRA) might finally turn "Voluntary Security Attestations" into a tool for sustainability was eye-opening. Smart Business: I loved the "Plan to Fork" session—the idea that planning for a fork is actually the best way to avoid one by identifying where to invest more deeply today. Such a brilliant strategic framework! Rich Bowen’s talk was clear, fun, and inspiring. The AI Ticking Time Bomb: A sobering but necessary session on the legal risks of AI-generated code. While the community discusses how AI will challenge open source given how fast AI tools can generate code, this talk reminded us that anyone who uses AI code carelessly in the future will be left to deal with the damage—especially when the warning comes from a seasoned business consultant (Dr. Andreas Kotulla) and a lawyer (Chan-jo Jun). Taking the Stage! I was so honored to give my talk on how much a paid, dedicated security engineer can actually achieve in the open source world. I used the amazing work of Seth Larson and Mike Fiedler as my "gold standard" examples—thank you both for your help and for letting me share your stories! To the 20 people ( 🤣 ) who made it to the very first session on Day 2: THANK YOU! Your interest in open source security and your support meant the world to me. If you missed it, I’m excited to be bringing this talk to Open Community Experience (OCX) in late April! The Best Part: The People The conversations in the hallways were just as good as the talks. It was so inspiring to catch up with Æva Black, Dawn Foster, and Deb Nicholson. I am in awe of Paloma Oliveira’s energy! She just published a new book, "Diversifying Open Source," which is a must-read for anyone building inclusive tech. Thanks to Julian Harty for the constructive feedback on my talk and the insights into how the NLnet Foundation funds projects in the EU. Great to finally meet Jonatan Männchen(CISO @ Erlang Ecosystem Foundation) and Jarek Potiuk (Apache Airflow) in person after following their impactful work through Alpha Omega. Feeling so inspired to keep pushing for better funding and security in the FOSS ecosystem. See you all at the next one! #FOSSBackstage #OpenSource #InfoSec #SupplyChainSecurity #TechCommunity #OCX2026
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Jarek Potiuk reposted thisJoin us next summer in NYC! :DJarek Potiuk reposted thisSpeaking up on stage can be scary and challenging but once you’re there you’re gonna love it, Beam Summit 2026 cfp is closing soon but you’re still on time to submit your proposal 👉 https://lnkd.in/ejYsFXdM See you in NYC!!
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Jarek Potiuk reposted thisJarek Potiuk reposted thisDid you know there are TWO keynotes at #icebergSummit this year? 🤔 On day 2 of the conference, we're in for a treat! Julien Le Dem, PMC Chair of Apache Parquet, will explore how #AI use cases are reshaping the entire columnar data ecosystem, including #apacheParquet, #apacheArrow, and #apacheIceberg, and how the community of projects under the The Apache Software Foundation are evolving to meet these new demands. This is going to be a great one! Check it out.👇
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Jarek Potiuk reposted thisJarek Potiuk reposted thisI haven't written a line of code by hand in 4 months. But ... But I'd still call it my best 6 months ever: shipped 150+ PRs across Apache Airflow and a bunch of other repos, took 6 weeks of paternity leave in the middle of it. Before anyone thinks this is easy or magic: I've spent hundreds of hours building the tooling around it. Writing skills, tuning hooks, setting up MCP integrations, figuring out which model to use for what. The code writing part is automated. Everything around it is not. Wrote my first blog post in years about it and what's actually hard. Link in comments.
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Jarek Potiuk reposted thisJarek Potiuk reposted thisDon’t trust, verify https://lnkd.in/dhEME3aJ #curl
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Jarek Potiuk reposted thisJarek Potiuk reposted thisTwo weeks ago I shared what AIP-99 brings to Apache Airflow 3: @task.agent, @task.llm, toolsets, the full decorator suite. One thing I didn't call out is: you are not locked into those decorators or Operators. You can use PydanticAI directly like the image in the post shows. Create an agent, pass in Airflow toolsets, call run_sync(). Works from a plain @task, PythonOperator, or any custom operator. The toolsets (SQLToolset, HookToolset, MCPToolset) resolve Airflow connections lazily through BaseHook.get_connection(). Credentials come from Airflow's secret backend. No hardcoded keys. This matters when you want full control over the agent lifecycle: - Run multiple agent calls in one task - Swap models at runtime - Combine outputs from different agents before returning If you want the guardrails (durable execution with step-level caching, HITL review, automatic tool logging), use @task.agent. If you want raw control, just use Pydantic AI directly. Both paths use the same toolsets. Docs PR is up. Link in the comments. #ApacheAirflow #PydanticAI #DataEngineering
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Jarek Potiuk liked thisJarek Potiuk liked this📣 We are Hiring !! 7 years at Astronomer and what we are building right now has me more fired up than anything before! Frontier LLMs can already write Python, Apache Airflow DAGs, SQL, dbt but they still lack context. They don't know what data exists in your org, where it lives, or what it means. We are solving that! We are building a context layer for each customer's data platform paired with intelligent agents that can interact with real production systems. Think: AI that actually understands your data stack. → LLMs & embeddings → Search and retrieval systems → Knowledge graphs & context modeling → Distributed systems at scale This role is for our new Applied AI Engineering team and we need builders who want to ship real AI + data products not just demos. If this sounds like your kind of problem and if you'd want to work with me ;) , do apply at https://lnkd.in/eVVPvzNQ
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Jarek Potiuk liked thisJarek Potiuk liked thisI’m happy to share that I’ve been promoted to Partner Sales Director for Eastern Europe at Snowflake. I’m grateful to the partners, teammates, and customers who’ve helped shape this journey so far. Special thanks to Dan Waters,Adam Wojtkowski, Piotr Pietrzkiewicz, Lorenzo Onorati, Corey Cummins, Roi Litterat, Omer Mizrachi, and many, many more. Looking forward to scaling our partner ecosystem across the region and helping more organizations unlock value from their data and AI. #Snowflake #Partners #ChannelSales #Data #AI #EasternEurope
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Jarek Potiuk liked thisJarek Potiuk liked thisNot all open source is created equal ⚖️ When evaluating which open source project to use, you should consider the openness level of the project. Questions to ask yourself: 🤔 1️⃣ What would happen to the project if the creator goes out of business or gets acquired? 2️⃣ What happens if the owner decides to change the project's license? 3️⃣ What happens if you want to contribute a feature that conflicts with the company's roadmap? Evaluate smart! Always add openness level as criteria in your research. 🔍
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Jarek Potiuk liked thisJarek Potiuk liked thisIn the open source world, while code contributions often take the spotlight, the ecosystem thrives on the crucial work of non-technical contributors. This talk by Lahari Chowtoori delves into their emotional and professional journeys, from navigating code-centric communities to becoming essential project pillars. Join us for this and other exciting sessions at #FOSSDesign on March 18 in Berlin: https://lnkd.in/dJDE7eKg The conference is supported by Penpot.
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Jarek Potiuk liked thisJarek Potiuk liked thisLast weekend, I participated in the UK Wife Carrying Competition 😆 🤩 😹 It was really fun, and I made a video about it! 📺 https://lnkd.in/eDDKJ4H3 😹 The UK Wife Carrying Race is a fun and unusual event in Dorking, inspired by a Scandinavian tradition, where participants race while carrying a partner over a 380m course with obstacles and water hazards. The person being carried does not have to be your wife; it can be a friend, boyfriend, girlfriend, sister, or brother, as long as they are an adult and meet the minimum weight requirement. The race is competitive and entertaining, with prizes, fancy dress, and the winning couple qualifying for the World Wife Carrying Championships in Finland 🙀 . We lost! 😿 but we laughed so much! Tickets for the competition are already open for the next year: https://lnkd.in/eHJWm_ki
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Jarek Potiuk liked thisJarek Potiuk liked thisI've spent the last couple months inside Apache Spark's Declarative Pipelines, and I finally wrote it all down. What's in here: - Why the shift from "how" to "what" matters for data engineering teams at scale - How Spark Declarative Pipelines (SDP) reduce the operational surface area of production pipelines - The dependency graph model that replaces manual DAG wiring - What this means for testing, recovery, and pipeline evolution It's a technical deep dive into a fundamental change in how we think about building data pipelines on Spark. If you're running PySpark ETL at any scale, I'd love to hear how this maps to your experience. https://lnkd.in/gA46CtcyDeclarative Pipelining in Apache Spark Part 1: Focus on Your Data, Not Your DAGsDeclarative Pipelining in Apache Spark Part 1: Focus on Your Data, Not Your DAGs
Experience & Education
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The Apache Software Foundation
View Jarek’s full experience
See their title, tenure and more.
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Licenses & Certifications
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ISO 9001:2000 Certified Internal Auditor
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Issued -
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Sign Language Translator
The Institute for the Deaf in Warsaw
Issued Expires
Volunteer Experience
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PMC member of Apache Airflow
The Apache Software Foundation
- Present 6 years 7 months
Science and Technology
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Committer, Apache Airflow
The Apache Software Foundation
- Present 7 years
Science and Technology
Apache Airflow is a workflow automation and scheduling system that can be used to author and manage data pipelines.
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Co-Organiser
Airflow Summit
- Present 6 years 6 months
Science and Technology
Together with my fellow Airflow community members I am organising first-ever Airflow Summit 2020 in Bay Area.
Projects
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MCE 2015
Co-organised (speaker, partners, sponsors) the conference. MCE started as a conference for developers by developers. This year, we are expanding our horizons to include all mobile creators - developers, designers and tech leaders. We are interested in details, hidden mechanisms, in short - everything behind the scenes that makes the user go WOW! when they download an app.
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Improving security of Apache Airflow
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A project to improve security for Apache Airflow Funded by Sovereign Tech Fund
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Custom Android OS for payment tablet - Albert by Aevi
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Developing custom Android OS for payment table - Albert by Aevi, creating a development environment for the team working on the OS, supporting tools and DevOps environment including Amazon EC2 cloud-based continuous build environment.
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MCE 2017 - Positive Tech conference
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The 4th edition of MCE had the "Positive Tech" leitmotif. One of the recurring topics was what good we can bring to the world and people via technologies we create. For the second year in a row, I was mainly responsible for engineering speakers and we cooperated with Proidea which took care about all the logistics so that we could focus on the content.
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Emberlight Android application
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We developed an Android app for beautifully designed light-controlling device - Emberlight.
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MCE^3
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Co-organized 3rd edition of MCE conference. This time I was mainly responsible for Engineering speakers. MCE evolved to join Engineering + Design + Product and we hosted over 500 attendees. This time we partnered with Proidea - professional event organizer, so our job was mainly about content.
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Iridium satellite receiver firmware research
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We performed research on implementing low-level demodulating firmware for Iridium satellite receiver - with main focus on optimisation and speed of signal processing
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Gigtown
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Mobile Android application for musicians and event organizers - allowing to book musician for your local event.
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Dating iOS/Apple Watch application designs
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We designed a Dating app based on scientific matching algorithms, with main focus on Apple Watch functionality
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Firmware development for unnamed device by Dolby
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Developing firmware changes/communication layer for an unnamed device by Dolby
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iOS, Android app for unnamed Dolby device
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Mobile applications controlling unnamed device by Dolby
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Desert Tycoon iOS and Android
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Farmville-like mobile Game in Arabic environment for iOS and later ported to Android
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Unnamed wearable device research
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We performed research for a wearable device that was aimed to revolutionize computing.
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Mobile Central Europe
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Renowned SPEAKERS: practitioners from 6 US states and 9 EU countries//
DEEP-DIVE into iOS, Android, UI design, human interaction//
21 SESSIONS: 7 hours of pure mobile knowledge transfer//
Geeky AFTER-PARTY with world‑class networking//Other creators -
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Ameba
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Open source project that helps to bring Continuous Integration into mobile development world.
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iPad configuration app for unnamed Dolby device
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We developed an iPad configuration application for an unnamed device by Dolby
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Move Together
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Startup building social application for discovering and sharing events to attend together.
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Nasi Na Dakarze
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Build mobile and web service for supporters of Polish ex. Ski-Jumping champion at Dakar Rally
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Common Uploader
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Building common upload service for various google properties (uploading big videos to Youtube for example)
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Google Contacts
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Improving Google Contacts
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Languages
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English
Full professional proficiency
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Polish
Native or bilingual proficiency
Organizations
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Apache Software Foundation
PMC Member of Apache Airflow
- Present
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