Senior Fullstack Engineer – Series B AI Startup | Remote (Europe)

I’m partnered with a fast-scaling AI startup, fresh off a Series B raise, looking to hire an early hire Fullstack Developer to shape the next generation of their platform.

This is a role for hands-on builders who enjoy owning systems end-to-end, from backend architecture to clean, functional UI. You’ll work on production-scale APIs, and tooling that powers real-time generative AI applications.

You’ll work with
  • Ruby on Rails (6 ), React (17 ), TypeScript
  • RESTful APIs and PostgreSQL (Prisma)
  • Containerisation and orchestration (Docker, Kubernetes)
  • CI/CD (GitLab, GitHub Actions), AWS/GCP
  • Testing (RSpec, Jest, React Testing Library)

You bring
  • 3–10 years fullstack experience in startup or product-led teams
  • Strong hands-on background with Ruby on Rails (v6 ), React (v17 ), JavaScript (incl. ES6 )
  • SQL Databases, ideally PostreSQL
  • Ability to design, build, and deploy production-ready features end-to-end
  • Proficiency in database design, API development, and performance optimisation
  • Solid GitHub or code samples that show technical depth and curiosity

Why join
  • Series B funding and strong traction with enterprise, media, and government clients
  • Work directly on real-time generative AI systems at production scale
  • Collaborate with senior engineers in a small, high-impact team with no bureaucracy
  • Own architecture decisions, ship fast, and see your work go live in weeks
  • 100 % remote across Europe | Flexible hours | Equity included

If you want to build the infrastructure and interfaces that make AI talk, get in touch