Felix Gertz
Full-Stack Software Developer And Consultant at Selbstständig
Hamburg, Germany
Summary
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RockstarFelix Gertz is a Hamburg-based full-stack software developer and consultant with 15 years of experience building distributed server applications and modern web front ends. Operating as an independent consultant since 2020, he specializes in Node.js, React, functional JavaScript/TypeScript, and databases like MongoDB and PostgreSQL, with strong Linux and systems integration skills. He contributes to open-source projects, including front-end improvements for the well-known Marathon container orchestration UI, showing attention to usability and maintainability. Known for pragmatic, production-focused engineering, Felix blends UI polish with backend reliability to deliver scalable systems for complex, distributed environments. An appreciation for Rust appears in his GitHub persona, hinting at curiosity for performant systems and low-level tooling beyond his daily stack.
15 years of coding experience
German, English, Danish, low german
Stackoverflow
175reputation
34kreached
6answers
2questions
Github Skills (16)
javascript10
react9
css9
orchestra8
orchestration8
orchestrate8
dcos8
ajax6
aggregation-framework6
docker6
nodejs6
mesosphere6
mongodb6
file-upload6
captcha6
Programming languages (8)
Github contributions (5)
d2iq-archive/marathon
Jan 2015 - Nov 2015
Deploy and manage containers (including Docker) on top of Apache Mesos at scale.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:12 commits, 38 PRs, 59 pushes in 10 months
Contributions summary:Felix primarily contributed to the user interface of the Marathon project. Their work involved adding padding and margin styles to tables, renaming a function for better understandability within a component, and passing function arguments using bind. Additionally, the user updated the UI version in the project's build configuration and corrected the snapshot versioning.
dockermesosdcos-orchestration-guilddcos
d2iq-archive/marathon-ui
Jan 2015 - Jul 2016
The web-ui for Marathon (https://github.com/mesosphere/marathon)
Contributions:8 releases, 540 commits, 484 PRs in 1 year 6 months
mesospheredcos-orchestration-guilddcos
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