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“Reliable payments, easy access, and yes, Legit!”
“OpenTrain became the bridge that led me into AI training work.”
“Everything has been respectful and accorded to contract.”
“The review and payment are so quick.”
“The admin is really helpful and responsive.”
“Reliable payments, easy access, and yes, Legit!”
“OpenTrain became the bridge that led me into AI training work.”
“Everything has been respectful and accorded to contract.”
“The review and payment are so quick.”
“The admin is really helpful and responsive.”
“Reliable payments, easy access, and yes, Legit!”
“OpenTrain became the bridge that led me into AI training work.”
“Everything has been respectful and accorded to contract.”
“The review and payment are so quick.”
“The admin is really helpful and responsive.”
We bring data science AI training and data labeling jobs from 20+ platforms into one place. Search, apply, and track your work without juggling separate accounts and dashboards.
All data science AI jobs from 20+ platforms in one feed.
See data science AI training and data labeling roles from 20+ platforms in a single feed. No more logging into separate dashboards or missing the right opportunities.
One data science expert profile. Apply anywhere.
Add your data science background, specialties, languages, and rates. Your profile is how AI teams find and shortlist you for data science AI training work.
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A data science AI portfolio that grows with you.
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Free, always. Find data science AI training and data labeling jobs from 20+ platforms, apply without managing multiple accounts, and build a portfolio that supports your career.
Build one expert profile with your skills, domains, and rates. See data science AI training jobs from 20+ platforms in a single feed. Apply with one click. No fees, no subscriptions, no credit card.
Create your profile, browse jobs from 20+ platforms, and apply with one click. No fees, no gatekeepers.
Highlight your data science background, relevant tools, and the domain work that makes you credible in AI evaluation.
Find AI training and reviewer work from across the ecosystem without checking multiple separate tools manually.
Focus on roles where data science judgment is a true differentiator instead of generic annotation only.
As you complete projects, your OpenTrain profile becomes stronger proof of specialist ability for future work.
Remote data science roles in AI training and data labeling from companies hiring on OpenTrain. Apply with a free account.
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 write Python solutions in a fully remote data science contract. Choose 20, 30, or 40 hours per week with four hours of daily 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 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
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
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Data Science AI roles across 20+ platforms
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Scale AI
Label Studio
Argilla
Encord
CVATScale AILabel StudioArgillaEncordCVAT
SuperAnnotate
Labelbox
Roboflow
Dataloop
Snorkel AISuperAnnotateLabelboxRoboflowDataloopSnorkel AI
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