Remote Full-Stack Dev & AI Task Designer

Anyone AI; Warszawa; On-site; PLN 82,656 - 151,536; Part time

Job summary

Anyone AI is seeking skilled Full-Stack Developers to join a project with a leading AI lab. This remote, part-time consultant role focuses on designing and evaluating realistic coding tasks, bug fixes, and feature implementations.

You will create multi-file coding challenges, write specifications and reference implementations, and review peer submissions for quality. The work is project-based with flexible hours and your own tools.

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.

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

Python

JavaScript/TypeScript

English

3–7 years

Debug multi-file codebases

Code reviews/refactoring/production

Testing frameworks

Tools

pytest

Jest

JUnit

xUnit

Go testing

Job description

Anyone AI is seeking skilled Full-Stack Developers to join a project with a leading AI lab. This remote, part-time consultant role focuses on designing and evaluating realistic coding tasks, bug fixes, and feature implementations.

You will create multi-file coding challenges, write specifications and reference implementations, and review peer submissions for quality. The work is project-based with flexible hours and your own tools.