Jobs · empllo
Backend Developer - AI Trainer
Keystone AI · Europe · Posted 11d ago
About the role
Design and implement multi-file coding tasks and develop unit and integration test suites for AI training.
📋 Description Design and implement multi-file coding tasks across bug fixes, features 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 🎯 Requirements 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 (pytest, Jest, JUnit, xUnit, Go testing) Proven ability to debug and navigate large, multi-file codebases Experience with code reviews, refactoring, and production migrations 🎁 Benefits Project-based consultant role with per-project payment Hourly rates are estimates; you control your schedule Consultants provide their own tools and may work for others
Read the full posting on empllo →
FAQ
Is the Backend Developer - AI Trainer role at Keystone AI remote?+
This Backend Developer - AI Trainer position is listed as remote (Europe).
What is the salary for the Backend Developer - AI Trainer role at Keystone AI?+
The listing states Estimated 78k-210k USD.
What seniority level is this Backend Developer - AI Trainer role?+
This is a mid level position.
How do I apply for the Backend Developer - AI Trainer role at Keystone AI?+
Use the "Apply on empllo" button to open the original posting on empllo, where you can submit your application directly to Keystone AI.