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# François Martin
Full stack engineer at Karakun focused on performance, testing, and open-source tooling.

## About

François Martin builds full stack software at Karakun. Based in Switzerland, he serves on the Swiss Testing Board and focuses on making web applications more reliable and performant.

In the open-source world, François co-authored the JavaFX frameworks WorkbenchFX and PreferencesFX. He frequently speaks about practical engineering problems, from fixing frontend bundle sizes with proper tree shaking to analyzing embarrassing real-world bugs that somehow slipped into production.



## Past Sessions

### World Congress 2025 · July 9, 2025
Berlin, Germany
- [82 Bugs I Collected in a Year You Won’t Believe Made It to Production](https://www.wearedevelopers.com/videos/1581-82-bugs-i-collected-in-a-year-you-won-t-believe-made-it-to-production) · 30 min · 🎥 Watch recording

### World Congress 2024 · July 17, 2024
Berlin, Germany
- [How writing just one import the wrong way slows down your website](https://www.wearedevelopers.com/events/world-congress-2024/sessions/372-how-writing-just-one) · 10 min



## Videos

- [82 Bugs I Collected in a Year You Won’t Believe Made It to Production](https://www.wearedevelopers.com/videos/1581-82-bugs-i-collected-in-a-year-you-won-t-believe-made-it-to-production) · François Martin


## Links

- [X](https://twitter.com/fmartin_)
- [LinkedIn](https://linkedin.com/in/françoismartin)
- [GitHub](https://github.com/martinfrancois)
- [Blog](https://dev.karakun.com/)