Full-stack Computer Science student - Amsterdam - Freelance

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 andunderstands 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

Flexible hours, hybrid work

Wat wij vragen

Minimaal 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: Ben jij de perfecte kandidaat? Klik op de‘solliciteer nu’ knop en dan nemen we zo snel mogelijk contact met je op!

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

Review AI‑generated code critically – not rubber‑stamping, but genuinely understanding and challenging it

Propose alternatives when you see a better approach

Gradually take ownership of parts of the codebase

Observe usability tests with real patients and feed findings back into the product

Brainstorm UX improvements as a thinking partner

Stack

Next.js · Supabase · Tailwind CSS · shadcn/ui · TypeScript

What we’re looking for

Strong full‑stack CS student (Bachelor’s or Master’s)

You understand the code you sign off on, and security implications

Someone who pushes back– on the code, on the approach, on the assumptions

Curious about the product and the people who use it

Independent, direct, and reliable

What we offer

Competitive student compensation

Work on something with real impact in a meaningful domain

Learn more about sleep and UX

8‑24 hours per week; you can plan around your study

Friendly, informal team; decisions get made fast

Flexible hours, hybrid (Amsterdam + remote)

Vaardigheden

Je beheerst Engels

Opleiding Universiteit

Wat wij bieden Salaris:

€30,- tot €35,-

Bestuurlijke en kwalificerende informatie:

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

Salarisomschrijving Tussen€30,00 en €35,00 per uur

Dienstverband:

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