Full-stack Computer Science student - Amsterdam - Freelance
For our sleep-specialized psychology practice, we're looking for a CS student to help rebuild our online sleep log. Real impact, Next.js/Supabase stack, flexible hours.
Wat ga je doen?
Slaapmakend is an insomnia-specialized treatment center with locations in Amsterdam, Haarlem, and Utrecht. By helping people sleep better, we make a real impact on their quality of life. You can play a role in this by helping us rebuild our digital sleep log for clients.
One of the founders builds it using AI-assisted development tools (Claude Code, Cursor, Composer, Gstack). We're looking for someone who has programming in their blood and is endlessly curious about new developments in AI and Agentic Coding. You’ll work alongside the founder as a genuine technical partner: someone who reviews and understands the code, challenges decisions, and gradually takes ownership of parts of the codebase.
If this collaboration works, we might explore whether an (semi) automated, scalable version of this treatment could become a separate start-up, where you could have a critical technical role. The sleep log is the starting point and the test. No guarantees at this stage, but if you’re interested in building an investor backed start-up and working abroad for a while, that’s a big plus.
Deadline: May 31st
Wat wij bieden
- Hands-on experience building AI agents in a real business context
- Interesting, challenging work
- Meaningful impact
- Friendly work environment
- Flexibly hours, hybrid work
Wat wij vragen
- Minimaal wo werk- en denkniveau;
- Proactive
- Pragmatic
- Interested in this domain
- Curious to learn
- Able to clearly explain technical considerations to non-devs
- Reliable
- Takes ownership
Solliciteren
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Extra informatie
When you send in your motivation, we’d love to see examples of what you built and the things you’re proud of. If you built it as a team, clearly describe your own contribution.
What you'll do
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Review AI-generated code critically — not rubber-stamping, but genuinely understanding and challenging it
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Propose alternatives when you see a better approach
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Gradually take ownership of parts of the codebase
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Observe usability tests with real patients and feed findings back into the product
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Brainstorm UX improvements as a thinking partner
Stack Next.js · Supabase · Tailwind CSS · shadcn/ui · TypeScript
What we're looking for
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Strong full-stack CS student (Bachelor's or Master's)
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You understand the code you sign off on, and security implications
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Someone who pushes back — on the code, on the approach, on the assumptions
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Curious about the product and the people who use it
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Independent, direct, and reliable
What we offer
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Competitive student compensation
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Work on something with real impact in a meaningful domain
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Learn more about sleep and UX
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8 - 24 hours/per week; you can plan around your study
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Friendly, informal team; decisions get made fast
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Flexible hours, hybrid (Amsterdam + remote)
- Status
- Open
- Opleidingsniveaus
- Universiteit
- Plaats
- Amsterdam
- Werkuren per week
- 8 - 24
- Dienstverbanden
- Parttime (overdag), Thuiswerk
- Salarisindicatie
- Tussen €30,00 en €35,00 per uur
- Verantwoordelijk voor
- Help rebuild our online sleep log
- Gepubliceerd op
- 19-05-2026
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