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.
Review and improve AI-generated chemical engineering content for technical accuracy, safety, calculations, and process reasoning. This remote contract pays $40 to $100 per hour and requires 20+ hours per week.
Posted Jul 8, 2026
Lead quality review for AI-generated chemical engineering content, checking calculations, units, safety, and reasoning. This remote U.S. contractor role pays up to $105/hour and seeks experts available 20+ hours weekly.
Posted Jul 8, 2026
Lead a pod of technical trainers creating and reviewing chemical engineering tasks for AI training. Evaluate simulations, models, graders, and engineering results using advanced technical judgment.
Posted Oct 9, 2026
Create, solve, and explain advanced chemistry problems used to train AI models. This remote contractor role requires deep chemistry knowledge, clear reasoning, and at least 20 hours per week.
Posted Jul 17, 2026
Review AI-generated mechanical engineering problems, drawings, calculations, and FEA results for accuracy and practical use. This flexible contract role pays $100 per hour and is open to candidates in the United States.
Posted Sep 25, 2026
Review AI-generated chemistry solutions, apply evaluation guidelines, and explain whether conclusions are scientifically sound. This part-time role is open to US-based chemistry experts with advanced academic or research experience.
Posted Oct 14, 2026
Review AI-generated mechanical engineering content, calculations, designs, and recommendations for accuracy, safety, clarity, and rubric compliance. This US-based contract role pays $75 per hour and requires 20+ hours weekly.
Posted Jul 9, 2026
Review AI-generated chemistry answers, design challenging questions, and give expert feedback on accuracy, reasoning, and chemical validity. This remote contract role offers flexible project-based work for qualified chemistry specialists.
Posted Sep 25, 2026
Create realistic mechanical engineering problem sets and fully verified Python solutions for AI training. This part-time contract role pays $15 to $50 per hour and requires at least 20 hours per week.
Posted Mar 29, 2026
Build and evaluate AI training datasets around mechanical design, simulation, testing, and failure analysis. This remote contract is planned for eight weeks and requires advanced engineering experience.
Posted Oct 16, 2026
Use mechanical engineering, simulation, Python, and coding-agent skills to create and review tasks for AI training. This remote contractor role offers flexible scheduling of about 15 hours per week and pays $60 to $120 per hour equivalent, paid per task.
Posted Oct 16, 2026
Review and improve AI-generated mechanical engineering content as a remote contractor earning up to $70 per hour. Work 20+ hours weekly and use your engineering expertise to assess technical accuracy and reasoning.
Posted Jul 9, 2026
Use chemistry or computational chemistry expertise to evaluate AI problems, workflows, data, and reasoning. This contractor role pays $45 to $90 per hour and is open in selected countries.
Posted Oct 16, 2026
Review AI-generated materials science content, create accurate reference answers, and rate model outputs for $30 to $95 per hour. This remote contract requires 20+ hours per week, professional English, and deep materials science experience.
Posted Sep 11, 2026
Review and improve AI-generated civil engineering content across structural, geotechnical, transportation, and water topics. This remote contract role pays $45 to $100 per hour and is open to qualified candidates in 17 countries.
Posted Jul 8, 2026
Review AI-generated civil engineering content and trainer QA work for calculations, safety, units, reasoning, and rubric accuracy. This remote U.S. contractor role pays up to $105 per hour and requires 20+ hours weekly.
Posted Jul 8, 2026
Create precise, verifiable engineering questions from multi-part FreeCAD assemblies. This part-time contract role pays $40 to $80 per hour and requires strong mechanical CAD knowledge.
Posted Sep 11, 2026
Create difficult mechanical engineering problems and verified Python solutions to train and evaluate advanced AI models. This part-time contract pays $10 to $45 per hour and requires advanced English and Python.
Posted Dec 12, 2025
Evaluate AI-generated materials science work, build scientific benchmarks, and review model reasoning against verified standards. This worldwide, English-language contract role requires advanced materials or semiconductor expertise and 20+ hours per week.
Posted Sep 25, 2026
Review AI answers about chemistry, toxicology, industrial hygiene, and chemical security. This remote contract pays $70 to $100 per hour and requires 20+ hours each week.
Posted Sep 16, 2026
Review AI-generated chemistry content and trainer QA work for scientific accuracy, clarity, and safety. This US-based role pays $75 per hour and requires 20 or more hours each week.
Posted Jul 8, 2026
Use advanced mechanical design and CAD expertise to create technical questions, verify answers, and evaluate AI-generated reasoning. This remote contractor role requires about 15 hours per week and pays $40 to $90 per hour.
Posted Oct 2, 2026
Lead AI training tasks that evaluate mechanical and aerospace engineering simulations, computational models, and technical feedback. This role suits advanced engineers with strong programming and simulation expertise.
Posted Oct 9, 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 and improve AI-generated electrical engineering answers, calculations, and explanations. This contract role pays $40 to $100 per hour and requires 20+ hours each week.
Posted Jul 8, 2026
Evaluate AI-generated answers to advanced CFD problems involving meshing, turbulence, heat transfer, multiphysics, and solver setup. This remote contractor role pays $50 to $150 per hour equivalent, paid per task that meets the project specifications.
Posted Sep 7, 2026
Create realistic electrical engineering problems and evaluate AI-generated technical content for accuracy and practical feasibility. This flexible, remote contract pays up to $120 per hour and requires current US residence.
Posted Sep 25, 2026
Help train AI systems by creating and evaluating expert problems in computational chemistry, structural biology, and drug discovery. This part-time contractor role pays $45 to $90 per hour and requires a relevant PhD.
Posted Oct 15, 2026
Work remotely on AI training projects that use mechanical design expertise. Create CAD models, interpret drawings, and improve manufacturing documentation for $40 to $80 per hour.
Posted Sep 25, 2026
Review AI-generated civil and structural engineering work, including calculations, models, estimates, and code compliance. This remote US contract role offers up to $90 per hour with an asynchronous schedule.
Posted Sep 25, 2026
Lead a team reviewing realistic engineering tasks for AI training, including simulations, numerical methods, and automated tests. This remote contractor assignment lasts about four weeks, requires 20+ hours weekly, and has no listed pay rate.
Posted Oct 16, 2026
Review AI-generated biochemistry content, write reference answers, and catch errors in mechanisms, calculations, methods, and safety guidance. This remote contract role pays $30 to $85 per hour, requires 20+ hours weekly, and needs C1 English.
Posted Sep 11, 2026
Design realistic civil engineering problems, write complete solutions, and verify them with Python. This part-time contractor role pays $15 to $50 per hour and requires 20+ hours each week.
Posted Mar 29, 2026
Review civil and structural engineering models, simulations, reference solutions, and automated graders for AI evaluation tasks. This remote contractor assignment requires advanced engineering experience, programming skills, and at least 20 hours per week.
Posted Oct 9, 2026
Review AI-generated electrical engineering content, calculations, and QA work for accuracy and safety at $105 per hour. This US-based contractor role requires 20+ hours weekly and strong electrical engineering experience.
Posted Jul 8, 2026
Review and compare AI-generated chemistry answers, check calculations and concepts, and write accurate explanations. This expert contractor role pays $30-$70 per hour and requires 20+ hours weekly.
Posted Jul 8, 2026
Review AI-generated aerospace electrical simulation work using CAD models, schematics, and engineering judgment. This expert contract role requires at least 10 years of experience and 20 to 40 hours per week with Pacific Time overlap.
Posted Oct 9, 2026
The partner lists a Life Sciences Subject Matter Expert role in chemistry, but its description focuses mainly on biology. The duties and qualifications need confirmation before applying.
Posted Sep 30, 2026
Evaluate computational chemistry workflows, simulation outputs, and scientific software for AI benchmarking. This remote contractor role pays $45 to $90 per hour and requires a PhD or equivalent experience.
Posted Oct 15, 2026
Review multi-part FreeCAD assemblies and write precise technical questions with exact answers. This remote contract role pays $40 to $80 per hour and requires CAD and industrial design, mechanical engineering, or aerospace knowledge.
Posted Sep 11, 2026
Review AI-generated biomedical engineering content and trainer QA work for calculations, safety, standards, and rubric accuracy. This remote US contractor role pays $105 per hour and requires 20+ hours weekly.
Posted Jul 8, 2026
Create, solve, and evaluate hardware engineering problems for AI training. This remote contractor role pays $60 to $120 per hour equivalent, paid per task that meets the project specifications, for about 15 hours per week.
Posted Oct 16, 2026
Review AI-generated biomedical engineering content for accuracy, safety, sound reasoning, and regulatory awareness. This contractor role pays $40-$100 per hour and requires 20+ hours weekly.
Posted Jul 8, 2026
Review and refine software engineering presentations for AI training, including technical content, architecture diagrams, data visualizations, and storytelling flow. This part-time contract role pays $150 to $350 per hour.
Posted Sep 25, 2026
Review FreeCAD-format mechanical assemblies and create precise question-and-answer sets for AI training. This part-time contractor role pays $40 to $80 per hour and requires strong mechanical CAD knowledge.
Posted Sep 11, 2026
Create, solve, and validate aerodynamics and computational fluid dynamics tasks for AI training. This remote role offers approximately 15 hours per week and pays $80 to $120 per hour equivalent, paid per task that meets the project specifications.
Posted Oct 16, 2026
Support AI training by creating and reviewing CAD models, simulation models, calculations, schematics, and engineering documentation. This remote 8-week contract requires 20 to 40 hours weekly and at least 10 years of relevant experience.
Posted Sep 8, 2026
Review microstructures, welds, coatings, heat treatment evidence, and additive manufacturing builds for AI training. This remote contract role pays $60 per hour and requires strong standards-based judgment, but no prior AI experience.
Posted Sep 30, 2026
Create and review complex parametric CAD assemblies for AI training, explaining design intent, mating strategies, tolerances, and manufacturability. This remote, part-time contractor role pays $40 to $90 per hour.
Posted Oct 2, 2026
Create and verify realistic electrical engineering problems, writing clear prompts and reproducible Python solutions. This worldwide contract role pays $15 to $50 per hour and requires an electrical engineering degree plus relevant experience.
Posted Mar 29, 2026
Review and improve AI prompts and responses across vehicle dynamics, powertrain, controls, embedded systems, ADAS, and manufacturing. This worldwide contract pays $40 per hour for less than 20 hours per week.
Posted Oct 1, 2025
Lead teams of 20 or more engineers delivering supervised fine-tuning and human feedback work for language models. Own technical quality, delivery, team performance, and dataset review with flexible part-time hours.
Posted Jul 20, 2026
Design and solve difficult physics problems that test large language models, then write clear solutions and feedback. This remote contractor role needs strong physics knowledge, excellent English, and at least 20 hours each week.
Posted Jul 17, 2026
Review and rate AI-generated content about chemical, biological, radiological, and nuclear safety. This remote contract role pays $60 to $100 per hour and requires relevant CBRN experience plus professional English.
Posted Sep 12, 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
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
Review and improve AI-generated code across major programming languages, from design through production operations. This flexible contractor role requires strong software engineering experience and partial PST availability.
Posted Jul 16, 2026
Review complex aerospace assemblies and write precise questions and answers about design features, functions, and component relationships. This remote, part-time contractor role pays $40 to $80 per hour.
Posted Sep 11, 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
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 AI-generated physics content and contributor QA work for scientific accuracy, reasoning, calculations, and clear explanations. This remote U.S. contractor role pays up to $75 per hour and requires 20 or more hours weekly.
Posted Jul 9, 2026
Review PCB files, assemblies, wire harnesses, semiconductor packages, and inspection results as an electronics quality expert helping create better AI training data. This remote, part-time contractor role pays $60 per hour.
Posted Sep 30, 2026
Review technical drawings, CNC documents, construction plans, and safety-related plans for AI training. This remote contractor role pays $55 to $60 per hour and requires strong industry experience.
Posted Sep 30, 2026
Review prompts and AI-generated responses for chemical, biological, radiological, nuclear, and explosive safety risks. This part-time contractor role pays $50 to $52 per hour and requires less than 20 hours per week.
Posted Sep 21, 2026
Use your field troubleshooting knowledge to review AI training scenarios involving industrial systems, controls, and safety codes. This remote contractor role pays $60 per hour and requires fluent English.
Posted Sep 30, 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
Analyze energy and utilities regulatory scenarios for AI training, including rate design, tariffs, market structure, FERC, and compliance. This remote contractor role requires a J.D., an active U.S. bar license, and four years of relevant practice.
Posted Oct 22, 2026
Create difficult physics problems, detailed solutions, and evaluation benchmarks for large language models. This expert contract role is open worldwide, requires strong physics and graduate-level STEM experience, and offers 20+ hours per week.
Posted Jul 17, 2026
Work remotely as a part-time contractor evaluating aerospace, defense, and marine inspection materials for AI training. The role pays $60 per hour and requires at least 8 years of complex quality inspection experience.
Posted Sep 30, 2026
Remote, part-time contract work for a Big Data Engineer building Python pipelines, distributed data systems, and reliable databases. Pay is $30 to $80 per hour, with applications open across 50 countries.
Posted Sep 15, 2026
Run structured aerodynamic workflows in Flow5 v7 using supplied geometry and project files. This remote contractor role pays per task and involves precise analyses, file delivery, and documentation.
Posted Oct 18, 2026
Design advanced physics questions and evaluate AI-generated answers for scientific accuracy, logical consistency, and physical validity. This remote contract role pays $75 per hour and requires 20+ hours per week.
Posted Sep 25, 2026
Support customer data ingestion and transfer workflows as an Associate Forward Deployed Engineer. The contractor, part-time role pays $40 to $60 per hour and involves Python, APIs, troubleshooting, and workflow automation.
Posted Sep 16, 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 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
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
Use FreeCAD expertise to create realistic CAD tasks, record demonstrations, and evaluate computer-use AI systems. This remote contractor role offers flexible hours and $25 to $30 per hour.
Posted Aug 19, 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 geology and earth science content for scientific accuracy, reasoning, and rubric alignment. This US-based contract role pays $70 per hour and requires 20+ hours each week.
Posted Jul 8, 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
Review complex biology problems and AI-generated answers, assess evidence and methods, and document clear scientific judgments. This contract, part-time role requires advanced life sciences expertise and 20+ hours each week.
Posted Oct 16, 2026
Review AI-generated life and environmental science content for accuracy, clarity, safety, and sound reasoning. This remote contract role is open to contributors in India and pays $20 per hour for 20+ hours each week.
Posted Aug 29, 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 AI-generated elementary science lessons, activities, quizzes, and explanations for accuracy, safety, and grade-level fit. This remote contractor role is open in India at $10 per hour with 20+ hours weekly.
Posted Aug 29, 2026
Review AI answers about explosives and energetic materials for safety, accuracy, and appropriate handling of sensitive information. This remote project pays $1 to $100 per hour for 20+ hours per week and requires professional explosives expertise.
Posted Sep 16, 2026
Build and validate Python data pipelines and evaluation tasks for AI benchmarks. This part-time contract requires 20+ hours weekly, 4 hours of daily PST overlap, and 3+ years of data-focused experience.
Posted Jul 16, 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
Review radiographic, ultrasonic, magnetic particle, and penetrant inspection data to help train AI systems. This remote, part-time contractor role pays $60 per hour and requires NDT Level II or III certification plus eight years of experience.
Posted Sep 30, 2026
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
Create challenging computational physics problems and verify reproducible Python solutions across mechanics, electromagnetism, thermodynamics, and quantum mechanics. This global, part-time contract role pays $15 to $60 per hour.
Posted Mar 29, 2026
Solve advanced physics problems and create clear, reproducible derivations for AI training. This remote contractor role pays $100 to $200 per hour and requires less than 20 hours per week.
Posted Sep 8, 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
Use advanced life sciences research skills to design scientific reasoning tasks, review AI-generated answers, and explain judgments clearly. The role requires strong scientific writing and at least 20 hours per week.
Posted Sep 30, 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, 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
Help evaluate advanced Biology language models by creating difficult problems, solving them carefully, and writing clear feedback. This part-time contract role is open worldwide to English-speaking Biology experts.
Posted Jul 17, 2026
Create realistic KiCad schematic and PCB design tasks, record complete computer workflows, and document each project clearly. This remote contractor role offers up to $20 per hour for applicants in Bangladesh, India, and Pakistan.
Posted Sep 5, 2026
Lead large software engineering AI training programs, improve coding data quality and delivery, and guide distributed contributor teams. This worldwide contract role requires 20+ hours per week and fluency in English.
Posted Sep 30, 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 systems on advanced atomic and optical physics, including ytterbium calculations and sigma versus pi transitions. Pay is $100 to $200 per hour for less than 20 hours per week.
Posted Sep 12, 2026
