Backend Developer - AI Trainer (France)

<p style="min-height:1.5em">Anyone AI is recruiting skilled Backend Developers to work as a project consultants. </p><p style="min-height:1.5em"></p><p style="min-height:1.5em"><strong>Qualifications:</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Advanced professional written proficiency in English</p></li><li><p style="min-height:1.5em">3–7 years of professional software engineering experience</p></li><li><p style="min-height:1.5em">Strong proficiency in Python and JavaScript/TypeScript; working knowledge of Java, C#, or Go</p></li><li><p style="min-height:1.5em">Backend or full‑stack development experience in production systems</p></li><li><p style="min-height:1.5em">Experience with testing frameworks (e.g., pytest, Jest, JUnit, xUnit, Go testing)</p></li><li><p style="min-height:1.5em">Proven ability to debug and navigate large, multi‑file codebases</p></li><li><p style="min-height:1.5em">Experience with code reviews, refactoring, and production migrations</p><p style="min-height:1.5em"></p></li></ul><p style="min-height:1.5em"><strong>Engagement:</strong> Part-time, project-based expert evaluation work</p><p style="min-height:1.5em"><strong>Work Type:</strong> Remote</p><p style="min-height:1.5em"></p><p style="min-height:1.5em">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.</p><p style="min-height:1.5em"></p><p style="min-height:1.5em">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).</p><p style="min-height:1.5em"></p><p style="min-height:1.5em"><strong>Responsibilities:</strong></p><p style="min-height:1.5em">Contributors will:</p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Design and implement multi-file coding tasks across bug fixing, feature development, refactoring, and testing</p></li><li><p style="min-height:1.5em">Write clear natural-language specifications and reference implementations</p></li><li><p style="min-height:1.5em">Develop and extend unit and integration test suites</p></li><li><p style="min-height:1.5em">Review peer-generated tasks for correctness, clarity, and realism</p></li><li><p style="min-height:1.5em">Identify edge cases, ambiguities, and potential failure modes</p></li><li><p style="min-height:1.5em">Ensure alignment between specifications, code, and expected outputs</p></li></ul><p style="min-height:1.5em"></p><p style="min-height:1.5em"><strong>Expected Outcomes:</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">High-quality, production-realistic coding tasks</p></li><li><p style="min-height:1.5em"&