Backend Developer – Remote (Part‑Time)

About the role

anyone‑ai is looking for experienced backend developers in Argentina to contribute to a cutting‑edge AI Lab project. The role is part‑time, remote and project‑based, allowing you to work on realistic coding tasks and evaluate peer submissions.

Key responsibilities

• Design and implement multi‑file coding tasks covering bug fixes, new features, refactoring and testing.
• Write clear natural‑language specifications and reference implementations for each task.
• Develop and extend unit and integration test suites to ensure robust validation.
• Review peer‑generated tasks for correctness, clarity and realism, providing actionable feedback.

Required profile

• 2–5 years of professional software engineering experience.
• Advanced written proficiency in English.
• Experience working with production‑grade backend or full‑stack systems.

Required skills

• Strong proficiency in Python and JavaScript/TypeScript.
• Working knowledge of Java, C# or Go.
• Familiarity with testing frameworks such as pytest, Jest, JUnit, xUnit or Go testing.
• Ability to debug large, multi‑file codebases and perform code reviews, refactoring and production migrations.