Paweł Obrok
Senior Software Engineer at RedStone
Queensland, Poland
Summary
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Rockstar🎓
Top SchoolPaweł Obrok is a seasoned software engineer with 16 years of experience building back-end systems across Ruby, Elixir, and systems-level C environments, currently based in Queensland. He has deep practical knowledge of concurrency and interpreters, contributing to notable open-source projects like concurrent-ruby (enhancing Promise semantics and performance) and Rubinius (fixing core Numeric, Range, and Thread behaviors). His recent work spans blockchain tooling and bridges—designing off-chain components and type-safe contract interactions for ink! and Solidity—alongside senior roles in crypto-focused teams. Paweł prefers functional programming roles and brings a pragmatic curiosity: he actively seeks to learn and tackle subtle language and concurrency edge cases rather than generic assignments.
16 years of coding experience
16 years of employment as a software developer
Master's degree Computer Science, Master's degree Computer Science at AGH University of Krakow
English, Polish, Chinese
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (10)
ruby10
executor10
rubinius10
programming-language10
virtual-machine10
concurrency10
es6-promise10
testing10
ranges9
thread8
Programming languages (11)
Github contributions (5)
ruby-concurrency/concurrent-ruby
Jul 2014 - Feb 2015
Modern concurrency tools including agents, futures, promises, thread pools, supervisors, and more. Inspired by Erlang, Clojure, Scala, Go, Java, JavaScript, and classic concurrency patterns.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:15 commits, 1 PR, 1 push in 7 months
Contributions summary:Paweł focused on enhancing the `concurrent-ruby` library, primarily by implementing and refining Promise functionality. They added the `flat_map` and `zip` methods to the Promise class, extending its capabilities. Several commits addressed bugs and edge cases within the Promise implementation. Furthermore, the user optimized Promise performance by introducing an `IndirectImmediateExecutor`.
supervisorsthreadpatternserlangconcurrent-programming
rubinius/rubinius
Oct 2011 - Oct 2011
The Rubinius Language Platform
Role in this project:Back-end Developer
Back-end DeveloperContributions:9 commits, 1 comment in 7 days
Contributions summary:Paweł primarily contributed to the Rubinius project by fixing bugs and improving the Ruby interpreter's core functionality. Their work focused on addressing issues related to the `Numeric` and `Range` classes, specifically related to step size and float handling, by modifying Ruby code. The user also addressed problems in the Thread implementation and corrected a type coercion issue, demonstrating a deep understanding of Ruby's internal workings. Additionally, the user made stylistic fixes to existing code, ensuring consistency and readability.
esoteric-languageprogramming-languagesvirtual-machinerubiniusprogramming-language
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