Dawid Wysakowicz
PMC Member, Apache Flink at The Apache Software Foundation
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolDawid Wysakowicz is a seasoned backend and full-stack engineer with 11 years of experience, best known as a Committer and PMC member for Apache Flink where he has contributed core Table API fixes, expression resolver improvements, state-management bug fixes, and website/documentation updates. Based in Warsaw, he has held production roles at Ververica, Immerok, and Confluent, blending hands-on distributed-systems engineering with open-source stewardship. His work on Flink touches critical query and identifier-parsing logic—areas that directly affect real-time stream processing correctness and performance. Comfortable across backend systems and developer-facing docs/quickstarts, he brings both deep code-level rigor and attention to the developer experience.
11 years of coding experience
12 years of employment as a software developer
M.Sc. in Engineering, Computer Studies, M.Sc. in Engineering, Computer Studies at Warsaw University of Technology
Polish, English
Stackoverflow
3,402reputation
338kreached
129answers
6questions
apache-flink
top-1%
Github Skills (18)
website-development10
apache-flink10
flink-sql10
java10
javas10
sql10
scala9
query-optimization9
html8
big-data8
operator6
flink-streaming6
arraylist6
css6
flink-cep6
Programming languages (6)
Github contributions (5)
apache/flink-web
Jun 2017 - May 2022
Apache Flink Website
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:30 reviews, 30 commits, 25 PRs in 4 years 11 months
Contributions summary:Dawid's commits primarily focus on updating the Apache Flink website. Their contributions involve rebuilding and updating various pages, including the community and documentation pages. They added and modified content related to releases and documentation. The user also updated the quickstart scripts and configurations for different versions of Flink.
flinkapachebig-datasparkapache-flink
apache/flink
Oct 2015 - Oct 2022
Apache Flink
Role in this project:Back-end Developer
Back-end DeveloperContributions:1290 reviews, 966 commits, 1124 PRs in 7 years 1 month
Contributions summary:Dawid's commits focused on enhancements and bug fixes to the Apache Flink table API. They addressed expression resolver rules, removing checks related to null types, and improved identifier parsing. The user was actively involved in enabling features, resolving issues in state management, and refining the code for the core query operations of Flink.
pythonflinkconnectorsqlapache
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.