About

What I do#

I'm Tech Lead Data & AI at yellow arrow, a Dutch MSP. I own the technical direction of our Data & AI practice: the architecture we stand behind, the standards we hold our work to, and the people who build it. Day to day I design data platforms on Databricks and Microsoft Fabric, put AI on top of them in a way that survives production, and help the team get better at both.

How I work#

Fewer dependencies, explicit state, small pieces that each do one thing. I would rather spend an extra day on a design that makes a class of bugs impossible than a week later chasing one of them.

I read one layer below the one I work in: what the query planner actually does, where the data is copied, what the runtime does with memory.

Most of leading is making good decisions repeatable. Write the standard down, review against it, and the team never has to wait for me to be in the room.

Projects#

Both written from scratch in Rust:

• AIRE — a game audio engine, published on crates.io.
• Recolon — a functional programming language with its own compiler.

Before this I studied Music Technology at HKU, and I play five instruments.

Contact#

Email is best: contact@breijen.com. Data platforms, AI in production, Rust, or anything you read here.