Senior Fullstack Software Engineer

You'll take full ownership across the whole platform, working directly with our CTO as the fifth engineer in a deliberately small, senior-only team. Your first day ends with your code in production.

What you'll do

• Implement new features across our whole stack, from backend to frontend. Elixir, Ruby, TypeScript + (React | Next.js), with high 90s % coverage on all projects.
• Use AI as a core part of how you build. You'll lean on AI to move fast, and build and improve the workflows that automate our technical and business tasks, from generating reports to swapping assets to digging into bugs.
• Maintain, design, and scale our platform. It runs on AWS, based on EKS and served via Netlify.
• Own quality end to end. Every PR runs through our AI reviewers first, but you're the human in the loop who validates and signs off. Nothing merges without a dev.
• Work closely with our Marketing and Product squads, and be crucial to deciding and implementing the features that support our business goals.
• Report directly to the CTO, challenge the status quo, and help define the future of our platform, including how far we take AI.

What you'll need

• You've spent at least 3–4 years at senior level, owning production systems through real growth.
• Deep, production-level experience in at least two of the three: frontend, backend, infrastructure – and genuine curiosity for the third.
• You already work with AI tools day to day – with AI agents, not just autocomplete – and can show concrete examples from recent work.
• A user-centric mindset with an understanding of business metrics.
• Fluent in English.
• 100% remote within the EU, reside in the EU and hold a valid EU work permit (CET ±2h). Core collaboration hours are 10:00–17:00 CET.

What they offer

• Company-paid AI subscription of your choice.
• 26 holidays plus unlimited recharging time.
• Flexible working hours and location with quarterly in-person team weeks.
• Learning & development budgets and access to professional business coaching.
• Urban Sports membership, snacks, lunches, mobility and retirement plans.
• Permanent contract from day one with highly attractive compensation package.