Backend Developer - AI Trainer (Netherlands)

Overview

Part-time Backend Developer - AI Trainer role designing and evaluating realistic software engineering tasks for a leading AI lab. You will build reference implementations, write specifications, and review peer submissions for correctness and quality.

What you'll do

• Design and implement multi-file coding tasks across bug fixing, feature development, refactoring, and testing.
• Write clear natural-language specifications and reference implementations.
• Develop and extend unit and integration test suites.
• Review peer-generated tasks for correctness, clarity, and realism.
• Identify edge cases, ambiguities, and potential failure modes.
• Ensure alignment between specifications, code, and expected outputs.

What you'll need

• Advanced professional written proficiency in English.
• 3–7 years of professional software engineering experience.
• Strong proficiency in Python and JavaScript/TypeScript.
• Working knowledge of Java, C#, or Go.
• Backend or full-stack development experience in production systems.
• Experience with testing frameworks such as pytest, Jest, JUnit, xUnit, or Go testing.

Details

• Work mode: Remote contributors.
• Employment/engagement: Part-time, project-based expert evaluation work.
• Location: Netherlands.