Browse current remote roles in AI training, model evaluation, RLHF, data annotation, and expert review. Filter by country, language, and specialty, then apply through OpenTrain.
Use Python to validate AI-generated computer science solutions, assess multi-step reasoning, and design rigorous problems. This project-based expert role pays $15-$40 per hour and is open worldwide.
Posted Apr 5, 2026
Investigate open problems in computer science and computational or mathematical physics using AI models, proofs, algorithms, and simulations. This flexible contract pays $100 to $400 per hour.
Posted Oct 13, 2026
Lead a 5 to 10 person technical pod creating and evaluating terminal-based coding, scientific computing, and electrical engineering tasks for AI training. The role requires 20+ hours per week and advanced technical experience.
Posted Oct 14, 2026
Review code, simulations, circuit designs, automated tests, and technical AI evaluation tasks while guiding a pod of 5 to 10 trainers. This four-week contractor assignment requires advanced technical experience, Linux skills, and at least 20 hours per week.
Posted Oct 9, 2026
Create reproducible, terminal-based scientific computing tasks that test AI agents on physics, chemistry, materials science, and astronomy workflows. This five-week remote contractor assignment pays $300 per approved task.
Posted Sep 26, 2026
Design complex computational life sciences tasks that test how AI agents inspect data, write code, use scientific tools, and produce valid results. This remote five-week contractor assignment pays $280 per approved task.
Posted Oct 8, 2026
Design multi-step computational life sciences tasks that test whether AI agents can inspect data, run code, solve problems, and explain results. This remote contractor role pays $280 per approved task.
Posted Sep 22, 2026
Review AI-generated code, systems, database, networking, and security content for accuracy and safety. This remote contractor role pays up to $20 per hour and requires 20+ hours weekly from India.
Posted Aug 29, 2026
Design complex, multi-step computational life sciences tasks that test how AI agents analyze data, run code, and reach valid conclusions. This remote five-week contractor assignment pays $300 per approved task and requires advanced research and Python skills.
Posted Sep 30, 2026
Create complex computational life sciences tasks that test AI agents through scientific analysis, coding, and reproducible evaluation. This remote contractor assignment pays $300 per approved task.
Posted Oct 17, 2026
Create and evaluate multi-step computational mathematics tasks for AI agents, with expert solutions, tests, grading criteria, and documentation. This remote five-week contractor assignment pays $300 per approved task and requires at least 40 hours per week.
Posted Sep 26, 2026
Create terminal-based Earth science tasks for AI agents using scientific programming, geospatial data, modeling, and objective evaluation. This remote contractor assignment pays $300 per approved task and runs for five weeks.
Posted Sep 24, 2026
Design difficult, realistic data science problems for AI training and evaluation. This part-time contract pays $50 per hour and requires advanced Python, SQL, statistics, machine learning, and technical writing skills.
Posted Dec 3, 2025
Create realistic Earth sciences tasks for AI training and evaluation using scientific code, environmental datasets, simulations, and automated tests. This remote contractor role is open worldwide and requires fluent English and advanced technical experience.
Posted Oct 9, 2026
Design and evaluate realistic coding-agent tasks using production-like repositories, tests, evaluators, and scoring rubrics. This contract role is open worldwide, requires English fluency and 20+ hours per week, and calls for deep software engineering experience.
Posted Oct 7, 2026
Build coding tasks, reference solutions, and verifiers that test AI software engineering systems. This remote contractor role pays $50 to $100 per hour equivalent, paid per task that meets the project specifications.
Posted Oct 14, 2026
Review, debug, and improve AI-generated code and technical responses across multiple languages. This remote, four-week contract offers flexible 20+ hour weeks with per-task compensation.
Posted Oct 14, 2026
Solve coding, debugging, and technical reasoning challenges used to evaluate AI models. This flexible remote contractor role expects about 15 hours per week and pays $60 to $120 per hour equivalent, paid per task that meets project specifications.
Posted Oct 16, 2026
Solve, code, and validate advanced mathematical tasks for AI training using Python and scientific computing tools. Pay is $60 to $120 per hour equivalent, paid per task that meets the project specifications, with about 15 flexible hours each week.
Posted Oct 22, 2026
Create, solve, and review life sciences research problems for AI evaluation using Python, scientific data analysis, modeling, and code review. Pay is $60 to $120 per hour equivalent, paid per task that meets the project specifications, with about 15 flexible hours per week.
Posted Oct 21, 2026
Evaluate AI models on complex software engineering problems by building coding environments, reference solutions, and expert reviews. Pay is $50 to $100 per hour equivalent, paid per task that meets the project specifications.
Posted Sep 7, 2026
Review AI-generated code, coding problems, solutions, and test cases while helping improve software engineering AI systems. This remote contractor role pays $245 to $280 per hour and requires strong software engineering judgment.
Posted Aug 27, 2026
Build and deploy multi-step AI agent workflows for mathematical and scientific reasoning. This remote, four-week contractor role requires advanced Python, production agent systems experience, and 40 hours per week.
Posted Sep 28, 2026
Review and benchmark AI-generated software on a remote, one-month US contractor assignment. Use your software engineering experience to test code, assess explanations, and improve coding evaluation standards.
Posted Jul 17, 2026
Design rigorous bioinformatics and computational genomics tasks that test whether AI models can analyze data, write code, and produce verifiable scientific results. This remote five-week contractor assignment pays $150 per approved task.
Posted Oct 7, 2026
Create realistic backend feature and bug-fix tasks, then evaluate AI-generated code for correctness, performance, testing, and maintainability. Pay is $30 to $100 per hour equivalent, paid per task that meets the project specifications.
Posted Oct 3, 2026
Create realistic backend feature and bug-fix tasks for AI coding systems, then build deterministic verifiers that assess solutions. Pay is $30 to $100 per hour equivalent, paid per task that meets the project specifications.
Posted Oct 6, 2026
Guide AI models through open problems, proofs, algorithms, numerical experiments, and high-performance simulations in a remote contractor role paying $100 to $400 per hour. Flexible part-time or full-time availability is open to candidates in listed countries.
Posted Oct 13, 2026
Create competitive programming problems, reference solutions, test suites, and C++ checkers for AI training. Pay is $45 to $65 per hour equivalent, paid per task that meets project specifications, with less than 20 hours per week.
Posted Sep 16, 2026
Design difficult computational genomics tasks, datasets, reference solutions, and grading criteria for AI evaluation. This remote contractor assignment lasts 5 weeks, pays $260 per approved task, and requires 20+ hours per week.
Posted Sep 22, 2026
Review AI-generated software engineering answers for accuracy, feasibility, and production quality. This US-based contract role pays $120 per hour and offers 20 or more flexible hours each week.
Posted Sep 30, 2026
Create realistic Visual Studio Code tasks, prepare project environments, and record complete developer workflows for AI training. This remote contractor role pays $20 per hour and requires 20+ hours per week in Bangladesh, India, or Pakistan.
Posted Aug 26, 2026
Translate CUDA and C++ code into Python, test model-generated implementations, and assess GPU algorithms using PyTorch and NumPy. This remote contractor assignment requires at least 20 hours per week and strong English communication.
Posted Oct 9, 2026
Review and improve AI-generated C and C++ code, solve difficult programming problems, and help build backend components for language model training. This contract role requires 20 or more hours each week and strong English communication.
Posted Jul 17, 2026
Build JavaScript and TypeScript code, evaluate AI model responses, create fine-tuning datasets, and support human feedback training. This remote contractor role runs for one month with 20, 30, or 40 hours per week.
Posted Jul 17, 2026
Review AI-generated reasoning, code, and machine learning outputs, then write reference solutions and rate competing answers. This remote contractor role pays $60 to $100 per hour and requires 20 or more hours each week.
Posted Jul 8, 2026
Use software engineering judgment to write code, review complex systems, and create programming examples for AI training. This remote, part-time contractor role pays $50 to $70 per hour and is open in listed countries.
Posted Aug 15, 2026
Create, review, and validate coding-heavy machine-learning tasks involving models, training systems, inference, and performance optimization. Pay is $60 to $120 per hour equivalent, paid per task that meets project specifications, with about 15 flexible hours per week.
Posted Oct 16, 2026
Create backend coding tasks and deterministic verifiers for AI systems. This remote contractor role offers flexible scheduling for about 15 hours per week, with $30 to $100 per hour equivalent, paid per task that meets project specifications.
Posted Sep 20, 2026
Create backend coding tasks that help train AI systems, including bug fixes, features, refactoring, and performance work. Pay is $50 to $100 per hour equivalent, paid per task that meets project specifications.
Posted Oct 14, 2026
Build Java backend components and help evaluate, fine-tune, and improve large language models. This remote contractor role requires 20+ hours per week, strong English, and solid software development skills.
Posted Jul 17, 2026
Review AI-generated full-stack code, system designs, and technical explanations using Node.js, React, and TypeScript. This remote contractor role offers $60 to $100 per hour, requires 20+ hours weekly, and is open in Germany, India, and the United States.
Posted Jul 8, 2026
Build backend services, RESTful APIs, and MySQL systems in a remote contract role using C# and .NET. The role pays $60 to $110 per hour and is open to candidates in 52 countries.
Posted Jun 28, 2026
Build and review coding tasks, debug software, and evaluate AI-generated code across major programming languages. Pay is $50 to $100 per hour equivalent, paid per task that meets the project specifications, with less than 20 hours per week.
Posted Sep 14, 2026
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
Create and document realistic NetBeans and Java development workflows, including project setup, debugging, testing, and build tools. This remote contractor role pays $20 per hour and requires 20+ hours weekly.
Posted Sep 5, 2026
Review AI-generated code for correctness, security, reliability, and maintainability in LLM evaluation work. This remote contract role requires at least seven years of software engineering experience and 20+ hours per week.
Posted Sep 30, 2026
Create and record realistic Jupyter Notebook workflows that help train advanced AI models. This remote contractor role pays $20 per hour and requires 20 or more hours each week from contributors in Bangladesh, India, or Pakistan.
Posted Aug 27, 2026
Review AI-generated code, create software tasks and tests, and explain technical decisions in written English. This part-time contractor role pays $150 to $200 per hour and is open to candidates in the United States, Canada, and the United Kingdom.
Posted Oct 13, 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
Develop and deploy machine learning systems in Python across data pipelines, model optimization, monitoring, and production use cases. This part-time contract role requires 20+ hours per week and four years of hands-on experience.
Posted Aug 2, 2026
Build and improve open source software for AI training, including feature work, bug fixes, refactoring, code review, and technical explanations. Remote work takes less than 20 hours per week, with $50 to $100 per hour equivalent, paid per task that meets project specifications.
Posted Sep 15, 2026
Review AI-generated C code and systems designs for memory, concurrency, safety, and performance issues at $65 per hour. This remote, part-time contract requires strong C and systems programming skills.
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 and improve Python code used in AI training projects as a remote US contractor. Work 20 or more hours per week at up to $70 per hour while guiding reviewers and trainers.
Posted Jul 9, 2026
Design realistic coding-agent benchmark tasks using production-like software, security tests, and evaluation tools. This remote contractor role requires strong Python skills, deep software engineering experience, and at least 20 hours per week.
Posted Oct 9, 2026
Review, build, debug, and validate software across front-end and back-end systems for AI training. Pay is $50 to $100 per hour equivalent, paid per task that meets the project specifications, with less than 20 hours per week.
Posted Sep 16, 2026
Review AI-generated TypeScript code and technical explanations, apply clear evaluation guidelines, and give evidence-based feedback. This remote contractor role pays $60 per hour and requires 20+ hours per week.
Posted Jul 9, 2026
Build secure and vulnerable application fixtures, deterministic tests, and evaluation assets for AI systems. This remote contractor role pays $40 to $80 per hour, offers flexible scheduling, and requires strong application security skills.
Posted Oct 15, 2026
Build MCP tools, improve AI coding assistant workflows, and create production-ready data applications for agentic AI systems. This part-time contract role is open worldwide and requires 20 or more hours each week.
Posted Oct 9, 2026
Test AI models and agents for security weaknesses, build repeatable red-team tools, and document clear findings. This remote contract pays $40 per hour for fewer than 20 hours per week.
Posted Nov 17, 2025
Evaluate AI models, rank responses, build fine-tuning datasets, and write Python solutions in a fully remote data science contract. Choose 20, 30, or 40 hours per week with four hours of daily Pacific Time overlap.
Posted Jul 16, 2026
Build Python infrastructure for LLM training and agent evaluation, including secure sandboxes, task frameworks, scoring pipelines, and developer tools. This remote contract role offers 20+ hours per week for engineers in the United States or Canada.
Posted Jul 25, 2025
Review and improve AI-generated C# and .NET responses, write technical explanations, and help models learn from expert feedback. This remote contractor role pays $35 to $65 per hour and requires 20+ hours weekly.
Posted Jul 8, 2026
Review AI-generated Ruby and Ruby on Rails code, assess reasoning and code quality, and write clear technical feedback. This remote contract role pays $55 per hour and requires 20+ hours weekly.
Posted Jul 9, 2026
Use deep STEM expertise and Python to solve technical problems and evaluate AI-generated answers. This remote contractor role offers $60 to $120 per hour equivalent, paid per task that meets the project specifications, with about 15 flexible hours each week.
Posted Oct 16, 2026
Create advanced computational and quantum chemistry problems, verify solutions with Python and chemistry libraries, and model real research workflows. This part-time contractor role requires a PhD and offers $15 to $60 per hour based on task complexity.
Posted Mar 29, 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 code patches for open source repositories, explain your decisions, and assess other reviewers’ work. Pay is $150 to $300 per hour equivalent, paid per task that meets project specifications, with about 15 hours per week.
Posted Sep 25, 2026
Evaluate challenging data science tasks, build reference solutions, and test coding agents remotely for about 15 hours per week. Compensation is $60 to $120 per hour equivalent, paid per task that meets the project specifications.
Posted Oct 13, 2026
Review AI-generated Python solutions and technical explanations for correctness, code quality, performance, and reasoning. Earn $60 per hour with 20+ hours weekly and use C1 English and Chinese.
Posted Jul 9, 2026
Create realistic Python and Pandas tasks in Jupyter notebooks for AI training. This remote contractor role offers 20+ hours per week and up to $20 per hour for candidates in Bangladesh, India, and Pakistan.
Posted Aug 28, 2026
Build Python connectors that replicate business software or create and evaluate realistic AI agent tasks. This remote, four-week contract pays $300 per approved task and requires at least one approved task per day.
Posted Sep 26, 2026
Review and rank AI-generated C++ code, systems designs, and technical explanations. This remote contractor role pays $65 per hour and requires expert modern C++ and systems programming experience.
Posted Jul 8, 2026
Build and test Python backend connectors or create realistic AI agent tasks and evaluation rubrics. This remote, four-week contract pays $300 per approved task and requires at least 20 hours per week.
Posted Oct 4, 2026
Review AI-generated C code and trainer QA work for correctness, memory safety, portability, and rubric adherence. This remote U.S. contractor role pays up to $75 per hour and requires 20+ hours weekly.
Posted Jul 8, 2026
Create realistic coding challenges and verifier scripts for AI models with flexible remote work of about 15 hours per week. Pay is $30 to $100 per hour equivalent, paid per task that meets the project specifications.
Posted Sep 20, 2026
Create realistic Eclipse IDE and Java development tasks, prepare technical environments, and record practical workflows for AI training. This remote contractor role pays up to $20/hour and requires 20+ hours per week.
Posted Sep 5, 2026
Evaluate AI-generated responses, create practical data science scenarios, and give structured feedback for up to $120 per hour. This remote, part-time project is open to US-based professionals with data science experience.
Posted Oct 10, 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
Build and review advanced automation workflows, JavaScript logic, and AI-generated solutions for systems that use APIs and webhooks. This worldwide contract pays $15-$45 per hour and requires 20+ hours each week.
Posted Mar 29, 2026
Evaluate how well large language models solve real C++ software problems. Build coding tasks from open-source repositories, run code locally, and work remotely for 20 or more hours per week.
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 large language models on real coding problems, inspect open-source repositories, and test bug-fixing tasks locally. This contract role is open worldwide, requires English, and offers 20 or more hours per week.
Posted Jul 16, 2026
Review AI-generated Kotlin answers for correctness, reasoning, and code quality, then write expert explanations and model solutions. This remote, part-time contract role pays $55 per hour and requires 2+ years of Kotlin development experience.
Posted Jul 9, 2026
Design difficult genomics and bioinformatics tasks, reference solutions, and objective graders for AI agents in a five-week remote contractor assignment paying $260 per approved task.
Posted Oct 8, 2026
Review AI-generated Go code for quality, correctness, efficiency, and dependable backend implementation. This part-time role requires 20+ hours per week, strong Go skills, and clear English communication.
Posted Jul 17, 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 AI-generated Swift and iOS code for correctness, performance, maintainability, and UI logic. This remote contractor role pays $55 per hour, offers flexible part-time work, and is estimated at about 20 hours weekly for 1 to 3 months.
Posted Jul 9, 2026
Create challenging machine learning questions and review AI-generated answers for accuracy, reasoning, and technical soundness. This remote contract role pays up to $75 per hour and typically involves 5 to 20 flexible hours per week.
Posted Sep 25, 2026
Design and verify realistic, computational data science problems using Python, SQL, statistics, machine learning, and GenAI. This project-based contractor role pays $15 to $40 per hour and is open worldwide.
Posted Apr 5, 2026
Build secure sandboxes, task environments, CI/CD pipelines, and developer tools for LLM training and agent evaluation. This remote contractor role offers 20+ hours per week for Python engineers in supported Asia-Low countries.
Posted Jul 25, 2025
Create, debug, translate, test, and review challenging software-engineering tasks for AI training. This remote contractor role pays $100 to $150 per hour equivalent, paid per task that meets project specifications.
Posted Sep 16, 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 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
Record and review detailed computer workflows to help train AI systems to understand software use. This remote, worldwide contractor assignment runs for 3 to 4 weeks and requires English, a reliable computer, and careful attention to detail.
Posted Sep 30, 2026
Evaluate how language models fix real software bugs using C#, GitHub repositories, Docker, and unit tests. This remote contractor role requires at least three years of software engineering experience and 20 or more hours per week.
Posted Jul 20, 2026
Create and verify advanced Python problem sets for quantitative finance, covering stochastic processes, optimization, simulation, time series, and risk modeling. This worldwide contract role pays $15 to $60 per hour for 20+ hours per week.
Posted Mar 29, 2026
Research and build evaluation systems, datasets, benchmarks, and agent environments for advanced AI. This contractor role is open worldwide, requires professional English fluency, and asks for 7+ years of research engineering experience.
Posted Sep 30, 2026
Create and test small game projects that help evaluate AI systems. This contract pays $25 to $70 per hour equivalent, paid per task that meets the project specifications.
Posted Oct 8, 2026
