Full-time

Full Stack Engineer

Posted by Engenious • Spain, Catalonia, Spain

📍 Spain, Catalonia 🕒 March 01, 2026

About the Role

We are looking for a senior fullstack software engineer to join one of our clients. You will be the main developer responsible for the backend service, with a strong focus on performance, reliability, and scalability to support thousands of concurrent users and high-frequency external service integrations. While backend expertise is essential, you should also have solid experience in modern frontend development and be ready to suggest improvements and adopt new technologies across the stack.

Our tech stack includes: Python, FastAPI, ReactJS, Typescript, Tailwind, Vite, Redis, MongoDB, PostgreSQL, Alembic, Azure DevOps, Docker, Kubernetes, and AWS. Experience with infrastructure is a plus, but not a main requirement—our infra team handles deployments and operations.

Responsibilities

  • Lead backend architecture and development, ensuring high performance and reliability.
  • Make key technical decisions and drive architectural improvements.
  • Proacti...

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