Use your Statistics expertise to train and evaluate AI models.
Design and validate realistic computational mathematics tasks that test AI agents in terminal-based research and engineering workflows. This remote contract requires advanced mathematical knowledge, strong programming skills, and 20+ hours per week.
Posted Sep 26, 2026
Review and redesign data science presentations, build clear visualizations, and turn complex findings into useful business reports. This remote contractor role pays $150-$350 per hour and requires 20+ hours each week.
Posted Sep 25, 2026
Use advanced quantitative finance knowledge to create training data and review AI-generated responses for accuracy, relevance, and research quality. This flexible US-based contract pays up to $150 per hour.
Posted Sep 25, 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
Create medical AI training data by interpreting clinical and biostatistical charts, writing rigorous questions, and explaining answers. This contractor role pays $25 to $50 per hour and requires 20 or more hours each week.
Posted Sep 17, 2026
Create rigorous AI benchmark questions from statistical charts, with clear calculations and verifiable answers. This remote contractor role pays $25-$50 per hour and requires 20+ hours weekly, strong English, and quantitative analysis experience.
Posted Sep 17, 2026
Create expert-level benchmarks for clinical trials, regulatory reviews, and observational studies. This contractor role pays $60 to $100 per hour and requires advanced biostatistics experience.
Posted Sep 17, 2026
Use advanced statistical methods, programming, and data preparation to improve AI training datasets. This contract role pays $60 to $120 per hour and requires strong English communication.
Posted Sep 16, 2026
Build and review statistical tasks used to evaluate AI models, including regression, ANOVA, hypothesis testing, and research reporting. This remote contractor role requires 20+ hours per week and strong experience with jamovi, JASP, JMP, or SPSS.
Posted Sep 14, 2026
Evaluate AI model answers in data science, statistics, machine learning, experimentation, and quantitative reasoning. This remote contractor role pays $245-$280 per hour and requires at least one year of relevant professional experience.
Posted Aug 27, 2026
Use clinical-trial biostatistics expertise to evaluate AI-generated analyses, verify statistical outputs, and create reliable review examples. This remote contract pays $60-$65 per hour and requires 20+ hours weekly.
Posted Aug 4, 2026
Analyze machine learning data, model outputs, evaluation metrics, and benchmark failures using Python and SQL. This remote contractor role requires 20 hours per week and is open in 10 countries.
Posted Jul 16, 2026
Review AI-generated R code, statistics, visualizations, and data workflows for accuracy and reproducibility. This US-only contract role pays up to $65 per hour and requires 20 or more hours each week.
Posted Jul 9, 2026
Review AI-generated responses, check statistical methods, and write accurate R solutions for AI training. This remote contract role pays $55 per hour and requires 20+ hours weekly.
Posted Jul 9, 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 market research and create expert research deliverables, including surveys, competitor scans, and insight summaries. Earn $30-$65 per hour with 20+ hours per week in a remote contractor role.
Posted Jul 9, 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 AI-generated analysis, code, and machine learning outputs, then write reference solutions and judge response quality. This remote contractor role pays up to $100 per hour and requires strong data science experience.
Posted Jul 8, 2026
Review and improve AI-generated clinical research content for $40-$70 per hour. Use your expertise in study design, statistics, evidence appraisal, and scientific writing in a flexible remote contractor role.
Posted Jul 8, 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
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
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
Design research-style computational statistics problems, verify solutions in Python, and document reproducible answers. This contract role requires a degree and offers $15 to $60 per hour.
Posted Mar 29, 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
Statistics subject-matter work can bring careful quantitative judgment to AI-training projects. A role may involve reviewing whether an AI response interprets data correctly, assessing reasoning that uses statistical concepts, labeling examples for model development, or evaluating the quality of data-related outputs. Some projects may also involve reviewing search results, written responses, or code where statistical understanding is relevant. The individual posting explains the actual responsibilities, so read it closely before deciding whether a role matches your background.
OpenTrain hires for the public roles available through OpenTrain. Candidates apply through OpenTrain, and successful candidates may be placed or referred to the client whose project they will support. Because hiring details can differ by role, use each individual live posting as the source of truth for eligibility, qualifications, responsibilities, pay, hours, location rules, and client-specific requirements.
