Backend Developer – AI Trainer (Remote, Part‑time)

About the role

Anyone AI is seeking experienced backend developers to act as AI trainers on a project with a leading AI lab. The work is part‑time, remote, and project‑based, focusing on designing realistic software engineering tasks and evaluating peer submissions.

Key responsibilities

• Design and implement multi‑file coding tasks covering bug fixing, feature development, refactoring, and testing.
• Write clear natural‑language specifications and reference implementations for each task.
• Develop and extend unit and integration test suites to validate solutions.
• Review peer‑generated tasks for correctness, clarity, realism, and edge‑case coverage.
• Provide structured feedback and ensure alignment between specifications, code, and expected outputs.

Required profile

• Advanced professional written proficiency in English.
• 3–7 years of professional software engineering experience.
• Experience working on production‑grade backend or full‑stack systems.
• Ability to debug large, multi‑file codebases and perform code reviews, refactoring, and production migrations.

Required skills

• Python
• JavaScript
• TypeScript
• Java
• C#
• Go
• pytest
• Jest
• JUnit
• xUnit
• Go testing framework

What we offer

• Project‑based consulting with flexible scheduling.
• Compensation on a per‑project basis, with rates estimated based on anticipated completion time.
• Freedom to use personal tools and to work for other clients concurrently, subject to their policies.