Ferenc Hammerl
Software Engineer at GitHub
Zürich Metropolitan Area Switzerland
Summary
🤩
Rockstar🎓
Top SchoolFerenc Hammerl is a software engineer based in the Zürich area with six years of experience building scalable back-end systems and cloud infrastructure. He has delivered production microservices and high-traffic e-commerce platforms, led technical initiatives like feature-flagged A/B testing and geo-redundant failover, and mentored junior engineers. At GitHub he contributes to critical GitHub Actions projects, improving build/deploy pipelines, runner containerization, and telemetry handling—work that touches a widely used open-source automation ecosystem. Comfortable across AWS, Azure, and containerized environments, he emphasizes testable, maintainable code and TDD practices. Known for quickly learning new technologies, he pairs hands-on DevOps improvements with backend design sensibilities and an occasional front-end instinct. Ferenc’s background includes large-scale migrations, performance optimizations, and building observability into systems so teams can act on data-driven insights.
6 years of coding experience
6 years of employment as a software developer
Associate's degree, Computer Science, Associate's degree, Computer Science at KEA - Københavns Erhvervsakademi
Github Skills (21)
github-ci10
web-proxy10
docker10
scripting10
proxy10
containerization10
dockers10
cicd10
proxy-pac10
http-proxy10
script10
sh10
nodejs10
shell10
githubaction-workflow10
Programming languages (5)
Github contributions (5)
actions/toolkit
Oct 2022 - Jan 2023
The GitHub ToolKit for developing GitHub Actions.
Role in this project:
DevOps Engineer
DevOps EngineerContributions:8 reviews, 43 commits, 28 PRs in 2 months
Contributions summary:Ferenc primarily focused on improving the build and deployment processes within the project. Their contributions included fixing linting issues, addressing file creation problems in the artifact package, and ensuring correct proxy configurations. The user also addressed issues related to node.js versions and caching.
developing
actions/runner
May 2021 - Jan 2023
The Runner for GitHub Actions :rocket:
Role in this project:DevOps Engineer
DevOps EngineerContributions:281 reviews, 84 commits, 188 PRs in 1 year 8 months
Contributions summary:Ferenc primarily contributed to the configuration and maintenance of the GitHub Actions runner. They focused on improving the runner's setup and update process, including modifying the `run.sh` and `run.cmd` scripts to handle updates more effectively. They also worked on containerization aspects by implementing container hooks and ensuring the correct behavior of the runner within containerized environments. Furthermore, the user implemented features related to telemetry data collection and masking within the runner.
continuous-testingci-cdrocketrunner
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