About this role
Full-Stack Developer - AI Trainer (Spain) at Anyone AI. Location: Madrid, Community of Madrid, Spain. Role: designing tasks, implementing tasks, reviewing tasks Requirements: 3–7 years software engineering experience, advanced written English, strong Python and JavaScript/TypeScript, knowledge of Java/C#/Go, backend/full‑stack production experience, testing frameworks, debugging large codebases, code review skills. Category: Software Development Seniority: Mid Level Tools: Python, JavaScript, TypeScript, Java, C#, Go, pytest, Jest, JUnit, xUnit Commitment: Contract, Part Time Workplace: Remote Languages: English