Use your Computer Science expertise to train and evaluate AI models.
Help train and evaluate AI coding models with Python, JavaScript or TypeScript, response ranking, dataset creation, and RLHF. This worldwide contractor role requires 20+ hours per week and strong English.
Posted Jul 17, 2026
Review and improve AI-generated code, create coding datasets, and build tools that verify software solutions. This flexible contractor role is open to experienced engineers in the US, Canada, and selected Western European countries.
Posted Jul 16, 2026
Evaluate how language models handle real Rust software problems by analyzing repositories, testing bug fixes, and reviewing code quality. This part-time contract requires 20+ hours per week and strong Rust experience.
Posted Jul 16, 2026
Evaluate AI models, rank responses, build fine-tuning datasets, and analyze public data using Python. This remote contractor role offers 20, 30, or 40 hours per week with Pacific Time overlap.
Posted Jul 16, 2026
Review AI-generated TypeScript code, trainer QA work, and technical explanations for correctness, safety, and maintainability. This remote US contractor role pays up to $70 per hour and requires 20 or more hours weekly.
Posted Jul 9, 2026
Review AI-generated TypeScript code and technical explanations, apply clear evaluation rules, and explain your decisions. This remote contractor role pays $25 to $60 per hour and requires 20 or more hours weekly.
Posted Jul 9, 2026
Review AI-generated SQL, database explanations, and data-modeling content for correctness, performance, security, and clear reasoning. This remote U.S. contractor role pays up to $70/hour and requires 3+ years of SQL experience.
Posted Jul 9, 2026
Review AI-generated SQL queries, database designs, and data-processing logic, then write reference solutions that help improve AI systems. This remote contractor role pays $50 per hour and requires 20+ hours weekly.
Posted Jul 9, 2026
Review and improve AI-generated Scala code, system designs, and technical explanations for $70 per hour. This remote contractor role requires strong Scala, JVM, concurrency, and distributed systems experience, plus 20+ hours per week.
Posted Jul 9, 2026
Review AI-generated Ruby and Rails code, assess its reasoning and quality, and write clear technical feedback and model answers. This remote contract role pays $55 per hour and requires at least 20 hours each week.
Posted Jul 9, 2026
Review AI-generated React Native code, write reference implementations, and assess mobile solutions for correctness, security, performance, and clarity. This contractor role pays $60-$100 per hour and requires 20+ hours weekly.
Posted Jul 9, 2026
Review AI-generated React and Next.js code, write reference solutions, and rate technical responses. This remote contractor role pays $60 to $90 per hour and requires 20+ hours weekly from candidates in the US, Germany, or India.
Posted Jul 9, 2026
Review AI-generated R code, statistics, visualizations, and data workflows for accuracy and reproducibility. This US-only contract role pays up to $65 per hour and requires 20 or more hours each week.
Posted Jul 9, 2026
Review AI-generated Python code, debugging work, tests, and explanations for correctness and quality. This remote US contract pays up to $70/hour and requires 20+ hours weekly.
Posted Jul 9, 2026
Review AI-generated Python code and explanations for correctness, performance, and sound engineering decisions. This contractor role pays $60 per hour and requires 20+ hours weekly, expert Python experience, and C1 English and Chinese.
Posted Jul 9, 2026
Lead quality reviews for AI-generated Python code, machine learning workflows, and trainer work. This US-based contractor role pays $120 per hour and requires at least 20 hours each week.
Posted Jul 9, 2026
Review AI-generated PHP code and trainer QA work for correctness, security, readability, and rubric fit. This remote US contractor role pays $70 per hour and requires 20+ hours weekly.
Posted Jul 9, 2026
Review and improve AI-generated PHP code, backend designs, and technical explanations. Earn $60 per hour while evaluating security, performance, architecture, and prompt adherence.
Posted Jul 9, 2026
Review and compare AI-generated Kotlin responses, write model solutions, and give detailed technical feedback. This remote contractor role pays up to $55 per hour and requires 2+ years of Kotlin development experience.
Posted Jul 9, 2026
Review AI-generated JavaScript code, write better solutions, and rate model responses for accuracy and reasoning. This remote contract offers flexible part-time work of about 20 hours per week.
Posted Jul 9, 2026
Review AI-generated Java code and contributor QA work for $70/hour. This US-based, part-time contractor role requires 20+ hours each week and strong Java experience.
Posted Jul 9, 2026
Review AI-generated Angular code, architecture, and technical explanations for correctness, security, accessibility, and performance. This remote contractor role pays $35-$90 per hour and requires 4+ years of production Angular experience.
Posted Jul 9, 2026
Review AI-generated C# and .NET code, trainer QA work, and model responses for correctness, security, and clear reasoning. This US-based contract role pays $75 per hour and requires 20+ hours each week.
Posted Jul 8, 2026
Review AI-generated data science work, code, models, and QA processes in a remote US contractor role paying up to $110/hour. Work 20+ hours weekly and apply in English through OpenTrain.
Posted Jul 8, 2026
Review AI-generated Go code and trainer QA work for correctness, safety, and maintainability. This remote U.S. contractor role pays up to $70 per hour and requires 20 or more hours each week.
Posted Jul 8, 2026
Review AI-generated Go code, explanations, and backend solutions for correctness, clarity, and idiomatic style. This remote contract role pays up to $60 per hour and requires 20+ hours per week.
Posted Jul 8, 2026
Review AI-generated full-stack code, system designs, and technical explanations using your Node.js and React expertise. This remote contractor role offers 20+ hours per week and country-based rates of up to $100 per hour.
Posted Jul 8, 2026
Lead quality reviews for AI-generated Dart and Flutter code as a remote U.S. contractor. Work 20 or more hours per week and earn up to $65 per hour.
Posted Jul 8, 2026
Review AI-generated C++ code, debugging answers, algorithms, and tests as a remote Quality Assurance Lead. This US contractor role pays $75 per hour for about 20 hours a week over an estimated one- to three-month project.
Posted Jul 8, 2026
Review AI-generated C++ code, systems designs, and technical explanations for accuracy, safety, memory use, concurrency, and performance. This remote contractor role pays $40 to $65 per hour and requires 20 or more hours weekly.
Posted Jul 8, 2026
Computer Science subject-matter work in AI training can involve reviewing or writing code, judging the quality of technical model responses, evaluating search results, labeling data, or applying computing knowledge to other examples used to prepare and assess AI systems. The exact responsibilities depend on the project. Read each individual live posting carefully for its stated scope, qualifications, eligibility, pay, hours, schedule, location rules, and client-specific requirements.
OpenTrain is the hiring organization for the public roles on OpenTrain. Candidates apply through OpenTrain, and successful candidates may be placed with or referred to the client whose project they will support. Hiring details are specific to each live posting, so review the relevant listing for the requirements and terms attached to that opportunity.
