Developer · entrepreneur · writer
Hello, I'm Willem.
I build robust software for business, and independent apps used by millions.
For years I built my companies in Amsterdam. In 2022 I moved my family to the quiet of Limburg, not for the scenery but for focus: room for deep work and clear thinking. I run everything as a company of one.
The work
I build software that works for you.
Two kinds of work, one person: the digital backbone businesses depend on, and independent apps born from my own curiosity. Some of it, in numbers:
Simple over clever
Software you can actually understand.
You stay in control
Your data, your business and your processes stay yours. No lock-in.
One person, full focus
You work with me, from first call to launch.
Writing
Ten years of thinking out loud.
Over 170 stories on technology, work and life. A few of the most recent:
Background
Two decades of building.
From a student job to the businesses I run today. Check out my CV for work experience, volunteer work and education.
W.L. Middelkoop MSc BICT
See my full CV →
Contact
Let's talk.
I'm open to new projects, hard technical problems and interesting ideas. Tell me what you have in mind.
Thank you.
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