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.
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
Review AI-generated math answers, check proofs and calculations, and write clear model solutions for $70 per hour. This part-time contract requires 20+ hours weekly and advanced mathematics training.
Posted Jul 9, 2026
Review AI-generated mathematics, check proofs and calculations, and guide remote QA work at $25 to $75 per hour. This United States contractor role requires 20 or more hours per week.
Posted Jul 9, 2026
Review AI-generated answers to advanced mathematics questions for accuracy, proof quality, and logical consistency. This remote contract role pays $75 per hour and offers flexible, asynchronous work for candidates in the United States.
Posted Sep 25, 2026
Evaluate advanced mathematics problems and model-generated solutions, write corrections, and verify formal proofs in Lean. This remote contractor role offers 20, 30, or 40 hours per week.
Posted Jul 20, 2026
Design original, research-style mathematics problems and verify complete solutions in Python. This part-time contract role requires an advanced mathematics background, a degree, and at least 20 hours per week.
Posted Mar 29, 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
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
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
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
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
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
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
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
Evaluate AI-generated quantitative finance responses and create expert training data for $150 per hour. This remote U.S. role requires advanced finance knowledge, strong research skills, and a relevant graduate degree.
Posted Sep 25, 2026
Review AI-generated quantitative answers, create challenging problems, and give feedback that improves model reasoning. This flexible U.S.-based project pays up to $150 per hour and requires practical quant experience.
Posted Oct 10, 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 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
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
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 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 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
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
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 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
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
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 improve economics-focused AI training work, including calculations, graphs, policy analysis, and data interpretation. Earn $20 to $90 per hour as a remote contractor working 20 or more hours weekly.
Posted Jul 8, 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
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
Evaluate AI-generated finance and accounting work, write expert rubrics, and create realistic professional tasks. This remote US contractor role pays $100 per hour and requires 20 or more hours per week.
Posted Sep 30, 2026
Review AI-generated financial analysis, check models and valuations, and write expert feedback and reference outputs. This remote contractor role pays $50 to $85 per hour and requires 20+ hours weekly.
Posted Jul 8, 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 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
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
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
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
Apply your expertise in statistical physics, quantum information, or condensed matter theory to AI training research. This remote contractor role pays $100 to $200 per hour and takes 5 to 10 or more hours per week.
Posted Sep 8, 2026
Review Malay and English language model responses, validate claims, solve reasoning tasks, and write detailed feedback. This remote contractor role requires 20+ hours per week.
Posted Jul 17, 2026
Review AI-generated finance analysis, create evaluation rubrics, and give clear feedback on model performance. This India-based contract requires English fluency, 20+ hours per week, and at least two years of relevant finance experience.
Posted Jul 28, 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
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
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
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 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
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
Create and verify challenging computational machine learning and STEM problems using Python, statistics, SQL, and modern GenAI tools. This global, project-based contract role is for experienced specialists who can work in clear written English.
Posted Apr 5, 2026
Evaluate finance-focused AI model responses, find weaknesses, and create rubrics for tasks such as investment analysis and M&A assessment. This US contract role pays $100 per hour and requires 20+ hours per week.
Posted Jul 16, 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
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 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
