Backend Developer (Colombia)

Overview

Project-based, part-time expert evaluation work for a leading AI lab, designing and reviewing realistic backend software engineering tasks.

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 (e.g., pytest, Jest, JUnit, xUnit, Go testing).
• Proven ability to debug and navigate large, multi-file codebases.
• Experience with code reviews, refactoring, and production migrations.

Details

• Location: Colombia, fully remote.
• Engagement: Part-time, project-based consultant role.
• Consultants are paid per project; hourly rates are estimates based on anticipated completion time.
• Consultants control their own schedule and provide their own tools, and may serve other vendors or employers subject to those vendors' allowances.