All positions
Full TimeRemote / CopenhagenEngineering

Full Stack Developer

We're not an agency and we're not a typical startup. We build our own products — things we actually want to exist and can see real potential in. We're looking for a full stack developer who wants to work across the entire stack, own features end-to-end, and ship to hundreds of thousands of users. This is not a 9-to-5.

WHAT YOU'LL DO

Build and ship mobile apps with React Native that serve real users at scale. Design and implement backend services, APIs, and infrastructure. Run growth experiments — paywalls, onboarding flows, conversion funnels — and iterate based on data.

Work directly with the founder on product direction. Pick what to build, own the architecture, and ship it. No standups, no sprints — just output.

TECH STACK

  • React Native / Expo
  • Next.js
  • TypeScript
  • PostgreSQL (Supabase / PlanetScale) & Redis (Upstash)
  • Express.js
  • Vercel & Fly.io
  • CI/CD flows
  • App Store & Google Play Store

NICE TO HAVE

  • Experience with RevenueCat and Superwall
  • Experience with PostHog
  • Experience in ads tracking
  • Knows their way around Figma
  • Eye for design and UX

WHY SMALLSTACK

Build what you want

We choose our own products. You have a say in what gets built and why.

Real ownership

You ship features end-to-end. No ticket factories, no middle management.

Small team, big reach

Direct impact on products used by hundreds of thousands of real users.

Modern stack

React Native, TypeScript, Node.js — greenfield projects, no legacy baggage.

Sound like you?

Send us your CV and a few lines about yourself.

Apply now