Use real plant and pilot data to write chemical engineering problems and evaluate AI models. This contractor role pays $50 per hour and is open to fluent English speakers in eligible countries.
Use power systems and protection expertise to write research-level problems for AI training, analyze relay and fault data, and earn $50 per hour as a flexible contractor. Apply through OpenTrain and complete the hiring-site application.
Write research-level operations research and applied mathematics problems that help train AI models. This flexible contractor role pays $50 per hour and uses your practical experience with optimization, modeling, and real operational data.
Create research-level problems for AI models using ocean, atmosphere, geoscience, and Earth observation data. This remote contractor role pays $300 per label and lets you work on flexible, task-based assignments.
Create research-level AI training problems using real mechanical and aerospace test data. This flexible contractor role pays $50 per hour and suits engineers with hands-on testing experience.
Use materials science or metallurgy expertise to write research-level AI problems from real instrument data. This flexible contractor role pays $50 per hour, with task-based work and no fixed weekly schedule.
Create research-level ecology, wildlife, and fisheries problems that test AI models using real population data. This remote contract role pays $50 per hour with no fixed weekly schedule.
Create research-level AI problems based on physiological and clinical recordings you have personally collected and analyzed. This remote contractor role offers $50 per hour with no fixed weekly schedule.
Use civil, geotechnical, or structural field expertise and site monitoring data to write research-level problems for AI models. Remote contractor work pays $300 per approved task, about $50 per hour, with flexible tasks and no fixed schedule.
Create research-level statistics problems that help train AI models, using real operational, survey, or insurance data. This remote contract work pays $50 per hour with flexible, task-based assignments.
Create research-level analytical and physical chemistry problems using laboratory measurements, spectra, kinetics, and Python-based analysis. This flexible remote role pays $50 per hour and is open to candidates in eligible countries.
Evaluate AI answers about QuickBooks, bookkeeping, financial reporting, reconciliations, and small-business accounting. This fully remote contract role requires 20+ hours per week and strong accounting experience.
Build thermal and CFD simulation workflows for PCB assemblies and electronic systems using OpenFOAM, Gmsh, and Python. This remote contract requires 20+ hours each week and is open worldwide.
Review and rate AI answers about bookkeeping, reporting, reconciliations, audits, and small-business accounting. This remote freelance project requires QuickBooks Online experience, strong English, and 20+ hours per week.
Create and evaluate engineering simulation benchmarks for AI agents using Python and open-source tools. This remote contractor engagement lasts up to 12 weeks, with part-time work accepted and required Pacific Time overlap.
Perform electromagnetic and signal integrity simulations for high-speed PCB designs, analyze interconnect behavior, and build Python workflows. The project is worldwide, requires English, and supports 20+ hours per week for about 13 weeks.
Create and record realistic CATIA engineering tasks for AI training, including part design, assemblies, surfaces, drawings, and validation. Work 20+ hours weekly with up to $20 to $150 per hour, open to candidates in five countries.
Review AI-generated answers to federal student loan questions about repayment, PSLF, default, and servicing transfers. This US-based remote contractor role pays $30 to $50 per hour for 15 to 25 hours weekly.
Federal loan typesRepayment plans and current rulesPSLF payment countsDeferment and forbearanceDelinquency and defaultServicing problems
Review medical information and AI-generated responses for accuracy, clinical relevance, and sound reasoning. Use your medical expertise to identify errors and provide clear, evidence-based feedback in a remote, part-time project role.
medical knowledgeclinical reasoninganalytical skillsattention to detailevidence-based medicinecritical assessment
Review emergency medicine scenarios and AI-generated medical responses for accuracy, completeness, and safe clinical reasoning. This remote, part-time project is for physicians with emergency medicine experience and fluent English.
emergency medicineacute care assessmentclinical decision-makingmedical information evaluationanalytical skillsattention to detail
Review AI-generated radiology content, identify clinical and reasoning errors, and explain your findings using established imaging principles. This remote, part-time project is open to qualified radiologists in participating countries.
radiologydiagnostic imagingclinical decision-makingmedical content evaluationanalytical skillsattention to detail
Evaluate AI coding tasks using real repository code, technical rubrics, and clear written feedback. The role pays $50 to $100 per hour equivalent, paid per task that meets the project specifications, for about 15 hours per week.
Use your family medicine or primary care expertise to evaluate AI-generated medical responses, apply project guidelines, and explain clinical judgments. This part-time, project-based role is open in many countries, with applications starting through OpenTrain.
clinical reasoningprimary caremedical content evaluationanalytical skillsattention to detail
Create and review graduate-level biology problems that test AI systems on experiments, data, figures, sequences, structures, and scientific reasoning. This remote contractor assignment requires at least 20 hours per week and professional English fluency.
Review and correct Welsh conversational audio transcripts for a 1,350-hour AI voice dataset. Pay is $30 to $35 per hour, with full-time weekday work from mid-November through December 31, 2026.
Use your sales, marketing, or business strategy experience to evaluate AI-generated business content, workflows, and recommendations. This remote contractor role pays $40 to $120 per hour and is open to professionals in the United States or Canada.
Review AI-generated business content and workflows using your professional experience. This remote, part-time contractor role is open to professionals in the United States and Canada and pays $40 to $120 per hour.
Review AI-generated financial models, data analyses, code, documentation, and business reports using professional standards. This remote contractor role is open in the United States and Canada and pays $60 to $120 per hour.
Build, debug, and evaluate full-stack software and AI-generated code across front-end and back-end systems. Earn $50 to $100 per hour equivalent, paid per task that meets the project specifications, for under 20 hours per week.
Work remotely as a medical imaging clinician annotator, outlining image regions and checking metadata for a large medical image dataset. Pay is $30 to $55 per hour for less than 20 hours per week.