Jacek Czerwonka
Partner Engineering Manager at Microsoft
Redmond, Washington, United States
Summary
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RockstarJacek Czerwonka is a Partner Engineering Manager at Microsoft with over a decade of experience architecting large-scale verification and measurement-driven software processes. He blends hands-on development—contributing to well-known open-source tools like Microsoft’s PICT pairwise testing generator—with leadership of distributed engineering teams across the US, India, China and Germany. His work focuses on DevSecOps, engineering workflow security, and embedding metrics into decision-making to improve testing, code review, and release pipelines. Previously he led QA and tooling for core Windows components and delivered major releases such as Windows 7 SP1. Jacek is a rare mix of systems-level tester, toolsmith, and manager who applies model-based and pairwise testing techniques to reduce risk at scale. He maintains an active research presence through publications and patents that inform his practical process improvements.
10 years of coding experience
14 years of employment as a software developer
Github Skills (11)
build-system10
c-language10
parser10
cprogramming-language10
parsing10
parse10
mstest9
testing9
ui-testing9
teste9
testkit9
Programming languages (4)
Github contributions (5)
microsoft/pict
Oct 2015 - May 2022
Pairwise Independent Combinatorial Tool
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 releases, 11 reviews, 76 commits in 6 years 7 months
Contributions summary:Jacek primarily contributed to the codebase's core functionality, making changes to the generator and parser. They focused on fixing header compliance issues, parser bugs, and issues related to wide-character string handling for LLVM compatibility. Furthermore, they added functionality to create directories for release configurations. These changes suggest a focus on maintaining and improving the project's build process and core generation logic.
testingcombinatorial-testingindependentpairwisecombinatorial
jaccz/jaccz.github.io
Feb 2021 - Mar 2025
Contributions:20 pushes, 1 branch in 4 years 1 month
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