$50–$100 per hour equivalent, paid per accepted task 100% remote Part-time Under 20 hours a week, you choose when Work on the cutting edge of AI coding systems, on your own schedule, and get paid for the engineering judgment you already have. The AI coding systems changing how software gets built are trained and tested by real software engineers. The teams building them need engineers who can create realistic coding tasks, judge whether an AI's solution works, write the solution a strong developer would provide, and explain where the AI falls short. Your judgment helps shape the next generation of coding models. This is that work, done remotely around your current job. What you'll do Design realistic coding tasks covering feature work and bug fixes Build reference solutions and automated checks that accept correct code and reject incorrect code Write code examples and debugging guidance in supported programming languages Review code submissions across large codebases, identifying bugs and assessing performance issues Why this is worth your time Build real AI skills on top of your current job while earning $50–$100 an hour Work directly with frontier AI coding tools and see how they are built, tested and improved, experience most software engineers will not have for years Build a career edge for what comes next: AI is reshaping software engineering, and the engineers who understand it from the inside will lead that change Fully remote, fully flexible, no minimum shift, no commute Who this is for Strong hands-on expertise in at least one of Python, Java, Rust, Go, C++, TypeScript or a similar programming language Experience in backend development, including services and APIs built to scale Knowledge of algorithms and data structures, familiarity with test automation and code review, and clear technical documentation and communication in English No AI experience needed. You bring the expertise; we bring the training on the tools. Pay and details $50–$100 per hour equivalent; pay is per accepted task, as an independent contractor Under 20 hours a week, you choose when; fully remote, United States How to apply Apply on OpenTrain (about two minutes; upload your resume). Complete a short application on the hiring platform. If shortlisted, take a conversational AI interview with technical questions and a coding challenge, whenever it suits you. Most people hear back within days. Ready to put your software engineering skills to work at the frontier of AI? Apply today. About OpenTrain AI OpenTrain AI connects experienced professionals with paid, part-time AI training work: shaping and improving the AI systems that companies are building right now.