Ten years, seven products of my own, most of them built solo and launched together with others. Below: what each one was for, how it was built, and what it taught me.
Now freelance at The Optimiser Company, Rotterdam, building a deal-capture system for energy trading. Open to new work.

Newest first, numbered in the order I started them. Each page: the problem, what I built, the outcome, the architecture, and a timeline.







BSc Mechanical Engineering, TU Delft, with a custom minor in programming and computational intelligence.
Rekindo, Fixmora and Kazengo ran on a self-managed Kubernetes cluster at Hetzner for under €100 a month: one person, three live products, GitOps from a single repository, Postgres on plain VMs, secrets and monitoring handled properly. Deliberate trade-offs for the scale, and the operations experience that shaped how I build.

The Hetzner platform. Full size and details →
Open to a new role as a senior backend or platform engineer, and to bounded 0→1 projects with a clear start and an explicit handover.