Outcome-driven
I optimise for working software and business results, not ceremony or resume-driven tech choices.
// About
Senior backend engineering, on your terms
Sinmux is the independent practice of a senior software engineer based in the Netherlands.
Sinmux is the backend engineering practice of a senior software engineer based in the Netherlands. The focus is simple: design and build server-side systems that are correct, observable, and fast — and that keep working under real-world load.
After years building and operating production backends, I now take on contract, project and freelance work for teams that need an experienced pair of hands on the hard parts: API design, data modelling, performance, and cloud infrastructure.
Pragmatic, communicative, and outcome-driven — I plug into your team or run a piece of work independently, whatever fits.
10+ yrs
Backend experience
NL
Based, remote-friendly
EN / NL
Working languages
How I work
Communicative
Clear written updates, honest estimates, and early flags when something looks risky.
Pragmatic
The simplest design that meets the requirement and can evolve — documented so the team can own it.
Quality-minded
Tested, observable, secure-by-default code that holds up under real production load.