Backend Developer (Colombia)

Anyone AI; Colombia; Remote; COP 55,104,000 - 96,432,000; Part time

Job summary

Anyone AI is seeking skilled Backend Developers to collaborate on a project with a leading AI lab. The role is remote, part-time, and project-based, with experts evaluating coding tasks and providing feature development and reviews.

Applicants should have 3-7 years of software engineering experience, fluency in English, and strong Python and JavaScript/TypeScript skills, plus knowledge of Java, C#, or Go. This consultant engagement offers flexible scheduling and independent tooling.

Qualifications

• 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

Responsibilities

• 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

Skills

English proficiency

Software engineering experience

Python

JavaScript/TypeScript

Java/C#/Go knowledge

Backend development

Testing frameworks

Debug multi-file codebases

Code reviews & migrations

Job description

Anyone AI is recruiting skilled Backend Developers to work on a project with a leading AI lab.

Qualifications

• 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

Engagement

Part-time, project-based expert evaluation work

Work Type

Remote

Contributors will design and evaluate realistic software engineering tasks, including bug resolution, feature implementation, refactoring/migration, and test generation. Work includes both creating complex coding scenarios and reviewing peer submissions for quality and accuracy.

This is a project-based consultant role. Consultants will be paid on a per-project basis; hourly rates are estimates based on anticipated completion time. Consultants control their own schedule, provide their own tools, and may simultaneously provide services to other vendors/employers (subject to those vendors’ allowances).

Responsibilities

• 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

Expected Outcomes

• High-quality, production-realistic coding tasks
• Complete and correct reference implementations
• Robust test coverage and validation artifacts
• Structured, actionable peer review feedback