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Anyone AI

We invest in people from Latam to bridge the talent gap in AI.

Backend Developer – AI Trainer

Backend EngineerSoftware EngineerContractRemoteSeniorTeam 11-50Since 2022H1B No SponsorCompany SiteLinkedIn

Location

United Kingdom

Posted

32 days ago

Salary

$45 - $80 / hour

Seniority

Senior

Bachelor Degree3 yrs expEnglishJavaJavaScriptJestJUnitPythonTypeScriptGo

Job Description

Backend Developer – AI Trainer

Anyone AI

• Contributors will 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

Job Requirements

  • 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

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