Marcin Owsiany
StackRox Staff Software Engineer at Red Hat
Krakow, Lesser Poland Voivodeship
Summary
🤩
Rockstar🎓
Top SchoolMarcin Owsiany is a seasoned systems and backend engineer with 25 years of experience building and hardening Linux/UNIX infrastructure and cloud-native tooling from Kraków. Now a Staff Software Engineer on the StackRox team at Red Hat, he blends deep C/C++ and systems expertise with modern Go/DevOps work—contributing notable enhancements to Helm and core StackRox tooling such as roxctl to improve security diagnostics and testability. A long-time open source advocate and Debian packager, he brings hands-on experience in networking (netfilter firewalls), automated testing, and pragmatic refactoring that reduces complexity. He prefers to stay based in Kraków, pairing local commitment with global-impact contributions to prominent projects in the Kubernetes ecosystem.
25 years of coding experience
10 years of employment as a software developer
M.Sc., Computer Science, M.Sc., Computer Science at AGH University of KrakowFourth High School in Bielsko-Biala
Polish, English, German
Stackoverflow
496reputation
47kreached
4answers
3questions
Github Skills (15)
charts10
security10
kubernetes10
container10
go10
helm10
kubernetes-pods10
charting10
testing10
command-line-tool9
java6
php6
curl6
jvm6
python6
Programming languages (23)
Github contributions (5)
stackrox/stackrox
Feb 2021 - Jan 2023
The StackRox Kubernetes Security Platform performs a risk analysis of the container environment, delivers visibility and runtime alerts, and provides recommendations to proactively improve security by hardening the environment.
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:950 reviews, 233 commits, 457 PRs in 2 years
Contributions summary:Marcin primarily contributed to the `roxctl` command-line tool, adding a new flag and making the tool's output more configurable and consistent. Their contributions involved modifying code for the `image check` functionality, which checks images against security policies. The user also implemented unit tests to capture existing behavior and refactored code for improved testability and maintainability. The changes made enhanced the security posture of the platform by providing more control over policy violation reporting.
containerscheckliststackroxsecurityrisk
helm/helm
Jul 2022 - Jul 2022
The Kubernetes Package Manager
Role in this project:Back-end Developer
Back-end DeveloperContributions:1 review, 1 commit, 2 PRs in 1 day
Contributions summary:Marcin primarily focused on enhancements and refactoring within the Helm codebase. Their contributions include adding functionality to log resource names during deletion to improve debugging and introducing a `RenderWithClientProvider` function for flexible client construction in template rendering. They also added tests for the new function, and dropped unused fields.
chartscharthelmpackage-managerkubernetes
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