Use your Data Science expertise to train and evaluate AI models.
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
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
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
Create realistic Python and Pandas tasks that show how people clean, transform, analyze, and export data. This remote contract role is open in Bangladesh, India, and Pakistan and pays up to $20 per hour.
Posted Aug 28, 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
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
Evaluate AI assistants on real data-analysis tasks, checking SQL, metrics, joins, filters, and time windows. This contract role pays $50 to $60 per hour and requires at least 20 hours per week.
Posted Aug 19, 2026
Develop and deploy machine learning systems in Python across data pipelines, model optimization, monitoring, and production use cases. This part-time contract role requires 20+ hours per week and four years of hands-on experience.
Posted Aug 2, 2026
Analyze public datasets, interpret JSON data, and turn findings into clear technical documentation for AI research and data work. This remote contract requires 20 or more hours per week and strong English communication.
Posted Jul 17, 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
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
Evaluate AI models, rank responses, build fine-tuning datasets, and analyze public data using Python. This remote contractor role offers 20, 30, or 40 hours per week with Pacific Time overlap.
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 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
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
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
Data Science work in AI training can involve using analytical and technical knowledge to prepare, label, review, or evaluate examples for artificial-intelligence systems. Depending on the individual posting, the work may include checking data labels, assessing model responses, reviewing code or analytical content, evaluating search results, or applying data science judgment to other assigned examples. Read each live posting carefully because responsibilities and requirements are specific to that role.
OpenTrain is the hiring organization for these opportunities, and candidates apply through OpenTrain. After a successful application, OpenTrain may place or refer the candidate to the client whose project they will support. The individual live posting is the source of truth for eligibility, responsibilities, qualifications, experience, pay, hours, schedule, location rules, and client-specific requirements.
