Fullstack Developer Senior (Node.js + React.js) (Barcelona)

Fullstack Developer Node + React – Location: Barcelona (Hybrid)

Contract: Indefinite with Neotalent Conclusion.

Languages: Spanish (Advanced), English (Advanced, interview in English).

Responsibilities

• Design and build responsive, high-quality user interfaces using React and Next.js.
• Develop backend services with Node.js and Fastify to implement APIs, business logic, and data flows.
• Integrate, optimize, and maintain communication between systems via APIs.
• Create scalable, maintainable, and modular software architecture.
• Implement CI/CD pipelines (preferably GitHub Actions) and write automated tests.
• Ensure application performance, reliability, and security.
• Manage containerized environments with Docker and Kubernetes; OpenShift is a plus.
• Apply clean code, comprehensive documentation, and maintainability practices.
• Contribute to InnerSource/Open Source initiatives to foste...