Full stack developer - Barcelona

What we’re looking for

• Senior Full Stack Engineer (Backend-oriented) with 5+ years of experience building distributed systems and complex applications.
• Strong expertise in Node.js (Fastify) and secure, scalable, high-performance API development.
• Experience contributing to frontend applications while maintaining a strong backend focus.
• Strong knowledge of software architecture , especially microservices, scalability, fault tolerance, and error recovery.
• Hands‑on experience with CI/CD pipelines, automated testing, Docker, and Kubernetes (OpenShift is valued).
• Advanced use of GitHub , including workflow automation (GitHub Actions, GitOps, scripting).
• Ability to quickly learn new technologies and continuously improve development processes.
• High level of English (C1 required) . French and Spanish are a plus.
• Strong motivation and intere...