Looking for Data Science work in AI training and data labeling? These roles can apply data science subject-matter knowledge to the human review and preparation that helps develop AI systems. OpenTrain is the hiring organization for roles on OpenTrain. Candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support.
Audit applied machine-learning tasks for sound experiment design, reliable evaluation, and evidence-backed conclusions. This remote US contractor role pays $70-$90 per hour and requires 20+ hours weekly.
Posted Sep 1, 2026
Create realistic Python, Pandas, CSV, and Jupyter notebook tasks that teach AI systems practical data analysis workflows. This remote contractor role offers self-directed work at up to $20 per hour for candidates in Bangladesh, India, and Pakistan.
Posted Aug 28, 2026
Use your data science, statistics, and quantitative expertise to evaluate AI model reasoning, create expert prompts and reference solutions, and improve next-generation systems. This remote contractor role offers $245-$280 per hour and requires 20+ hours weekly.
Posted Aug 27, 2026
Create realistic Jupyter Notebook tasks and record reproducible Python and pandas workflows for AI training. This remote contractor role offers $20/hour and 20+ hours weekly in Bangladesh, India, or Pakistan.
Posted Aug 27, 2026
Evaluate AI-generated analytics workflows using advanced SQL, Snowflake, and rigorous metric validation. This worldwide, part-time contract pays $50-$60 per hour and offers 20+ hours weekly.
Posted Aug 19, 2026
Apply your advanced statistical expertise to clean, analyze, visualize, and annotate complex datasets used to train next-generation AI systems. This flexible worldwide contract offers less than 20 hours per week and pays $60-$120 per hour.
Posted Aug 12, 2026
Use your statistical and data visualization expertise to create rigorous benchmark questions, answers, and explanations for advanced AI evaluation. Work remotely as a contractor for 20 or more hours per week at $25 to $50 per hour.
Posted Aug 11, 2026
Use data science, statistics, and technical writing expertise to evaluate and improve AI-generated content and data. This remote, part-time contractor role offers 20+ hours per week and $100 to $200 per hour.
Posted Aug 4, 2026
Use your professional expertise to evaluate AI-generated responses, apply detailed rubrics, and provide feedback that improves model behavior. This part-time remote contract offers 20+ hours per week and pays $140-$200 per hour.
Posted Aug 4, 2026
Evaluate AI-generated and human-created data science work remotely at $100 to $150 per hour. Create grading criteria, assess complex deliverables, and provide evidence-based feedback through a flexible contractor role.
Posted Jul 29, 2026
Use technical writing, Python, and data analysis to turn public datasets and JSON into clear, traceable insights for AI research. This remote contractor assignment offers flexible part-time work across 10 countries.
Posted Jul 17, 2026
Build and validate Python data pipelines and benchmark tasks for advanced AI systems in a flexible, 3-month contractor role with 20+ hours per week.
Posted Jul 16, 2026
Build and evaluate AI models with Python, SFT, RLHF, and public datasets in a fully remote contract role. Choose 20, 30, or 40 hours per week with at least four hours of PST overlap.
Posted Jul 16, 2026
Review AI-generated documents, spreadsheets, and slide decks for accuracy, rigor, and presentation quality. Earn $80-$120 per hour in a flexible, remote contractor role with OpenTrain.
Posted Jul 10, 2026
Review AI-generated R code, statistical explanations, visualizations, and modeling workflows for accuracy and reproducibility. This remote US contract offers up to $65/hour and requires 20+ hours weekly.
Posted Jul 9, 2026
Review AI-generated R analyses, spot statistical and coding errors, and write expert solutions that improve model quality. This remote contract offers $55 per hour and requires 20+ hours weekly.
Posted Jul 9, 2026
Review AI-generated data science content, code, models, and analytical workflows while helping trainers and QAs improve quality. This remote, part-time contractor role offers up to $110 per hour for qualified US-based candidates.
Posted Jul 8, 2026
Evaluate AI-generated analysis, code, and model outputs while creating reference solutions for complex data science problems. This remote, hourly contractor role offers 20+ hours per week and rates up to $100 per hour.
Posted Jul 8, 2026
Use advanced Python, SQL, statistics, machine learning, and GenAI expertise to author realistic data science problems that help train and evaluate AI systems. This remote, project-based contractor role pays $15 to $40 per hour.
Posted Apr 5, 2026
Use expert Python, statistics, SQL, and GenAI knowledge to create and verify challenging computational machine learning problems. This project-based remote contract offers $15 to $40 per hour.
Posted Apr 5, 2026
Use advanced Python, SQL, statistics, and machine learning expertise to design and verify realistic data science problems that train and evaluate cutting-edge AI systems.
Posted Dec 3, 2025
Use Python, statistical inference, and experimental design to evaluate AI-related data and produce clear, reproducible insights. This worldwide, part-time contract role pays $25 per hour and requires fewer than 20 hours weekly.
Posted Sep 3, 2025
Use Python, SQL, ETL, and dashboarding skills to build reliable data pipelines and communicate insights through interactive visualizations. This worldwide, part-time contractor role pays $25 per hour.
Posted Sep 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.
