Marek Kisielewicz
Sr. Software Engineer at HP Cloud
Sunnyvale, California, United States
Summary
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RockstarMarek Kisielewicz is a senior software engineer based in Sunnyvale, California with eight years of experience building and refining backend systems and cloud services. At HP Cloud he has progressed from engineering manager to senior engineer, demonstrating both leadership and hands-on expertise in production-grade software. His open-source work on Golem’s Clay project shows a focus on task orchestration, RPC communication, and practical DevOps improvements—refactoring legacy checks, tightening execution validations, and enhancing logging and tests. Marek combines systems-level thinking with developer ergonomics, favoring small, targeted changes that reduce technical debt and increase reliability. Colleagues know him for quietly driving backend robustness and for tackling tricky integration points that others often avoid.
8 years of coding experience
2 years of employment as a software developer
Github Skills (8)
rpc10
go10
python10
ethereum10
p2p9
testing8
dockers7
docker7
Programming languages (4)
Github contributions (5)
golemfactory/clay
Nov 2018 - Oct 2019
Golem is creating a global market for computing power.
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:103 commits, 23 PRs, 94 pushes in 11 months
Contributions summary:Marek's contributions primarily focused on refactoring and improving the core backend logic of the Golem project, specifically around task management and RPC communication. They removed legacy app compatibility checks and updated logging in several modules. Furthermore, they moved validations within the task execution flow and added validations to the client. There is also evidence of test modifications to support these backend changes.
pythonethereump2pblockchaincryptocurrency
pawelkisielewicz/ffmpeg-tools
Sep 2019 - Oct 2019
Tools for using ffmpeg functionalities in python.
Contributions:8 PRs, 23 pushes, 5 branches in 21 days
ffmpegpythonnumbamulticore
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