> Markdown version of [/@arjan-tijms](https://www.wearedevelopers.com/@arjan-tijms). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Arjan Tijms Co-founder of OmniFish and project lead for core Jakarta EE specifications. ## About Arjan Tijms co-founded OmniFish, building enterprise support systems around Jakarta EE. He leads several core Jakarta projects—covering security, authentication, and expression language. He also co-created the Duke's Choice Award-winning OmniFaces library for JSF. Beyond writing three books on the platform, Arjan helps shape its future on the Jakarta EE Steering and Specification committees. He maps out the practical impacts of these updates, teaching developers how to handle new release cadences, framework integrations, and performance optimizations for Jakarta EE 11. ## Past Sessions ### World Congress 2024 · July 17, 2024 Berlin, Germany - [Increased Performance and Developer Productivity with Jakarta EE 11](https://www.wearedevelopers.com/videos/943-increased-performance-and-developer-productivity-with-jakarta-ee-11) · 30 min · 🎥 Watch recording ## Videos - [Increased Performance and Developer Productivity with Jakarta EE 11](https://www.wearedevelopers.com/videos/943-increased-performance-and-developer-productivity-with-jakarta-ee-11) · Arjan Tijms