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 biological workflows, datasets, and analysis methods used to benchmark AI systems. This contract, part-time role pays $45 to $90 per hour and requires deep biology or bioinformatics expertise.
Posted Oct 16, 2026
Review and improve AI-generated biology answers for accuracy, reasoning, and clarity. This remote contract role pays $70 per hour, typically offers 20+ hours weekly, and requires an advanced life-science degree.
Posted Jul 8, 2026
Review AI-generated biology content and trainer work for scientific accuracy, safety, and clear reasoning. This US-based remote contract pays up to $75 per hour for 20+ hours each week.
Posted Jul 8, 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
Evaluate AI-generated biology responses for accuracy, reasoning, experimental methods, and data interpretation. This remote, flexible role offers up to $125 per hour for qualifying work.
Posted Sep 25, 2026
Create original biology research problems that require serious reasoning and Python-based verification. This worldwide, part-time contract pays $15-$60 per hour and suits professionals with a relevant degree.
Posted Mar 29, 2026
Create advanced, non-code life sciences reasoning tasks and expert reference answers for AI evaluation. This remote contract role requires strong biological research expertise and at least 20 hours per week.
Posted Oct 20, 2026
Create advanced, non-coding biology problems and reference answers for AI evaluation. This contract role suits researchers who can interpret experiments, data, figures, sequences, structures, and scientific evidence.
Posted Sep 24, 2026
Create rigorous life sciences tasks for AI evaluation using experiments, biological data, figures, sequences, and research evidence. This remote contractor role runs for one month and requires 20 or more hours per week.
Posted Oct 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 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
Create graduate-level, non-coding life sciences tasks that test how AI interprets experiments, data, figures, sequences, structures, and research evidence. This remote contractor role requires advanced research experience and at least 40 hours per week for one month.
Posted Sep 24, 2026
Design graduate-level biology problems and reference answers for AI evaluation using experiments, datasets, figures, sequences, structures, and literature-style evidence. This remote contractor assignment runs for one month.
Posted Sep 30, 2026
Evaluate AI-generated answers to advanced life sciences questions, design expert-level problems, and write evidence-based rubrics. This remote contractor role pays $45 to $90 per hour and requires a life sciences PhD, laboratory research experience, and C1-level English.
Posted Oct 15, 2026
Create graduate-level life sciences questions and reference answers that test how well AI interprets experiments, biological data, figures, sequences, and research evidence. This remote contractor assignment requires advanced research experience and Pacific Time overlap.
Posted Sep 30, 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
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
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
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
Create graduate-level life sciences problems that test how AI interprets experiments, biological data, figures, sequences, structures, and research evidence. This remote contractor role requires advanced life sciences research experience.
Posted Oct 2, 2026
Annotate food and dietary data, evaluate AI-generated nutrition content, and check scientific accuracy for nutrition tracking, coaching, and research applications. This flexible, eight-week remote assignment requires 20+ hours weekly and English proficiency.
Posted Oct 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
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 nutrition content and label food, dietary, and nutrient data for accuracy, safety, and relevance. This entry-level contract role is open worldwide and requires 20 or more hours per week.
Posted Oct 17, 2026
Use advanced life sciences knowledge to write, review, and improve AI-generated scientific responses. This contract role offers 20+ hours per week and requires English fluency plus advanced research experience.
Posted Oct 10, 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
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
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
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
Execute structured sequence-analysis and molecular-biology workflows in UGENE for a remote AI training project. Work with supplied files, produce documented outputs, and contribute 20+ hours weekly for about five weeks.
Posted Oct 14, 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
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
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
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 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
Review and improve AI-generated scientific answers across microbiome, metagenomics, clinical genomics, and translational research for $45 to $90 per hour. This remote contractor role requires a relevant PhD, laboratory research experience, and professional English.
Posted Oct 15, 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-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
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 chatbot responses against business requirements, document findings, and support testing and workflow analysis in a fully remote 16-week project. The role requires fluent English, a relevant bachelor's degree, and at least two years of business analysis experience.
Posted Oct 14, 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
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
Evaluate chatbot responses against business requirements for accounting and finance applications. This remote, 16-week freelance project requires 20+ hours weekly across five working days, with two weekdays off.
Posted Oct 15, 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 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 Turkish and English content that helps language models improve. Research claims, summarize material, solve reasoning tasks, and provide clear feedback in a remote role requiring 20 or more hours each week.
Posted Sep 11, 2026
Evaluate AI-generated responses and actions, research claims, solve reasoning tasks, and write feedback that improves computer-using AI agents. This entry-level contract role is open worldwide and requires 20 or more hours each week.
Posted Oct 15, 2026
Evaluate chatbot responses against business requirements while reviewing workflows, data, and functional needs. This US-based freelance project runs 16 weeks and requires 20 or more hours per week.
Posted Oct 13, 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
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
Compare chatbot responses, assess business requirements, and document clear recommendations in a project-based Business Analyst role open to candidates in the United States. The role requires 20+ hours weekly and supports part-time contract work.
Posted Oct 20, 2026
Review complex dermatology cases, resolve clinical disagreements, and evaluate AI model outputs in a remote, four-week contract. The work is paid per task and averages 20+ hours per week.
Posted Oct 14, 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
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 Finnish and English content, test reasoning and factual accuracy, and give detailed feedback to improve language models. This is a remote, one-month contractor assignment with 20+ hours per week and compensation based on experience.
Posted Jul 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
Analyze content, validate claims, solve reasoning questions, and write feedback that helps improve language models. This remote contract role requires professional fluency in English and Bahasa Indonesian.
Posted Jul 20, 2026
Review board game scenarios and AI-generated answers for logic, rules, strategy, and probabilistic reasoning. This flexible, part-time role is open worldwide and requires fluent English.
Posted Jul 16, 2026
Review AI-generated neuroscience and cognitive science content, check trainer and QA work, and improve scientific training data. This US contractor role pays up to $90/hour and requires 20+ hours per week.
Posted Jul 9, 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
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
Create rigorous biomedical signal processing and machine learning problems, develop reference solutions, and validate reproducible methods. This part-time contract pays $60 to $120 per hour equivalent, paid per task that meets the project specifications.
Posted Oct 17, 2026
Review AI-generated anthropology content and contributor work for accuracy, cultural sensitivity, and methodological rigor. This US-based contract role pays $65 per hour and requires 20 or more hours each week.
Posted Jul 8, 2026
Build and manage Python scraping workflows for complex, JavaScript-heavy websites. This remote contractor role pays $20 per hour and requires 20 or more hours each week.
Posted Feb 26, 2026
Analyze French content, research claims, solve analytical questions, and create training scenarios and explanations as a French-speaking Business Analyst.
Posted Jul 17, 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 business datasets and documents for accuracy, completeness, privacy, and consistency. This remote contract role pays USD $31 to $60 per hour and is open to candidates in listed countries.
Posted Sep 9, 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
Evaluate computer-using AI agents by researching claims, solving reasoning tasks, and rating model responses. This worldwide freelance role offers ongoing work for 20 or more hours per week.
Posted Oct 13, 2026
Create advanced STEM questions, score AI-generated solutions, and build detailed rubrics for model training. This remote US contractor role pays $100 per hour and requires 20+ hours weekly.
Posted Sep 30, 2026
Review and improve AI-generated sociology content and contributor work for accuracy, nuance, ethics, and rubric alignment. This US-based contractor role pays $65 per hour and requires 20+ hours weekly.
Posted Jul 9, 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
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 philosophy content and contributor work for accuracy, logic, context, and rubric alignment. This US-based contractor role pays up to $65 per hour and requires 20+ hours weekly.
Posted Jul 9, 2026
Review sperm detection and motility labels in reconstructed microscopy videos for an AI-assisted semen analyzer. This contractor role pays $6-$14 per hour and requires at least two years of hands-on semen analysis experience.
Posted Oct 19, 2026
The partner lists a Mathematics Expert role, but its description names a different subject. The duties and qualifications need confirmation before applying.
Posted Oct 2, 2026
Review text responses in human-AI social scenarios, explain your judgments, and help improve model behavior. This remote contractor project runs for 2 to 3 weeks and requires 20+ hours per week.
Posted Oct 15, 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
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
Review AI-generated responses to social scenarios, apply clear guidelines, and explain your judgments in English. This remote project offers flexible scheduling, 20+ hours per week, and lasts about 2 to 3 weeks.
Posted Oct 15, 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
Evaluate large language models with business-analysis expertise by writing demanding prompts, testing edge cases, and reviewing AI responses. This remote contract role requires a relevant master's degree, three years of experience, and 20+ hours per week.
Posted Oct 20, 2026
Create and evaluate mathematical reasoning content for language models. Analyze problems, validate claims, and explain solutions clearly in a remote contract role requiring 20+ hours each week.
Posted Jul 16, 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
Create practical lifestyle workflows that help an AI assistant turn plain-text requests into useful Google Sheets applications. You will write domain guidance, build reference sheets, test generated apps, and review quality.
Posted Sep 26, 2026
Review business datasets, protect sensitive information, and evaluate AI-generated analysis for accuracy. This part-time remote US contract role pays $50 to $60 per hour.
Posted Oct 8, 2026
Review large language model answers, test analytical reasoning, research claims, and write clear feedback for AI training. This remote contract role is open worldwide, requires fluent English, and takes 20 or more hours per week.
Posted Oct 20, 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 astronomy and astrophysics content for scientific accuracy, clear reasoning, correct calculations, and rubric compliance. This remote US contractor role offers up to $110 per hour and requires 20 or more hours weekly.
Posted Jul 8, 2026
Review complex dermatology cases, resolve clinical disagreements, and evaluate AI model outputs remotely. This four-week contract pays per label and requires fluent English, board certification, and an active US medical license.
Posted Oct 16, 2026
Review AI-generated political science content, guide remote reviewers, and improve quality standards across AI training projects. This flexible US contractor role pays up to $70/hour and requires strong political science knowledge.
Posted Jul 9, 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
Analyze behavioral cues in text, audio, and video, create detailed annotations, and evaluate AI-generated responses. This part-time contractor role pays $20 to $70 per hour and is open across several regions.
Posted Sep 15, 2026
Analyze Japanese and English content to improve large language models through research, question answering, scenario creation, and detailed feedback. This remote contractor role requires 20+ hours per week and strong analytical writing skills.
Posted Jul 17, 2026
Review psychology-focused AI content for accuracy, safety, clarity, and ethical care. This remote US contractor role offers up to $80/hour, flexible availability, and work supporting trainers and quality teams.
Posted Jul 9, 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
Use advanced physics knowledge to review AI answers, find errors, rank reasoning, and write model solutions. This contract role pays $30-$70 per hour and requires 20+ hours weekly.
Posted Jul 9, 2026
