Senior Full-Stack Engineer for AI & RL Infra

Alstech is seeking exceptional Full-Stack Software Engineers in Cataluña, Spain. You will build full-stack applications that power reinforcement learning systems, collaborating directly with researchers and engineering leadership.

The role requires strong experience in frontend and backend development, ideally with React, Python, and FastAPI. This position can be freelance or full-time, starting with a paid project to evaluate fit.