Full-Stack Developer (Poland)

Stack

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

Requirements

• ▹Advanced professional written proficiency in English
• ▹Polish language skills
• ▹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

What we offer

• ▹Remote work
• ▹Own schedule; may work for other vendors or employers at the same time