Software/DevOps & AI Engineer
Building things for the Internet since 1996
Hi, I'm Jeroen. I'm a freelance software/devops engineer (Wellner IT Consultancy), building things for the internet since 1996.
These days that means shipping LLM features into production products, picking and evaluating the models behind them, and running a team of AI coding agents alongside my own work.
I also run what I build: when production misbehaves (slow queries, failing alerts, mail that doesn't arrive) I'm usually the one who finds out why, and I make sure releases ship safely.
Hi, I'm Jeroen. I'm a freelance software/devops engineer (Wellner IT Consultancy), building things for the internet since 1996.
These days that means shipping LLM features into production products, picking and evaluating the models behind them, and running a team of AI coding agents alongside my own work.
I also run what I build: when production misbehaves (slow queries, failing alerts, mail that doesn't arrive) I'm usually the one who finds out why, and I make sure releases ship safely.
What I do with AI, day to day:
I review and own what ships: the agents do the legwork, I do the judgement.
Currently working with (updated November 2026):
This site ships the same way: tag, GitHub Actions builds the image, Flux rolls it out.
Mail me at jeroen@wllnr.nl.
Built with Eleventy, Sass and a small hand-written shell in vanilla JavaScript.
Source: github.com/jwellner/website