Senior Full Stack Engineer (Next.js, React, Python)

About the role

Somnio, a Uruguayan software company recognised by Google as one of the top 10 Flutter companies in the world, is looking for a Senior Full Stack Engineer to build and evolve products for its clients. The role is fully remote, works on a contractor basis, and involves direct contact with the client's team. It is a flexible project opportunity with weekly commitments from 10 to 40 hours.

Key responsibilities

• Build features end to end, from the interface to the API and the database.
• Design and maintain APIs and backend services in Python.
• Develop fast, accessible web applications with Next.js and React.
• Take part in technical decisions such as architecture, code reviews and best practices.
• Work directly with the client to understand their needs and propose solutions.
• Use AI tools in daily work to deliver faster and with better quality.

Required profile

• 5+ years of experience as a full stack or software engineer.
• Comfortable working directly with clients and explaining technical decisions.
• B2 English or higher, as projects are global and some clients require C1.

Required skills

• React and Next.js (SSR, routing, performance).
• Python for backend work (FastAPI, Django or similar).
• Relational databases such as PostgreSQL and REST APIs.
• Git, testing and CI/CD.
• Nice to have: TypeScript, cloud platforms (AWS, GCP or Azure), Docker, and experience building products with LLMs or AI features.