Use sua experiência em aprendizado de máquina para treinar e avaliar modelos de IA.
Review AI-generated data science content, code, models, and QA work as a remote Data Scientist Team Lead. This US contractor role pays up to $110 per hour and requires 20+ hours per week.
Publicada em 8 de jul. de 2026
Review AI-generated data science reasoning, code, and model outputs, write reference solutions, and compare responses for accuracy. This remote contractor role pays up to $60 to $100 per hour and requires professional data science experience.
Publicada em 8 de jul. de 2026
Build and evaluate machine learning models with Python, MongoDB, and common ML libraries in a remote, part-time contractor role paying $80 to $140 per hour. Apply through OpenTrain, then complete the hiring site application.
Publicada em 3 de jul. de 2026
Create and verify realistic, computationally intensive data science problems using Python, SQL, statistics, machine learning, and GenAI. This global contract offers flexible project work for experienced data science specialists.
Publicada em 5 de abr. de 2026
Create and verify computational machine learning and STEM problems using Python, statistics, SQL, and modern AI tools. This global, project-based contract pays $15 to $40 per hour for about 10 to 20 hours weekly during active phases.
Publicada em 5 de abr. de 2026
Build and improve automation workflows powered by large language models. You will refine prompts, review model outputs, and create evaluation criteria for practical communication and content tasks.
Publicada em 29 de mar. de 2026
Design realistic tests for AI agents, define expected behavior, and review model outputs. This part-time contract pays $18 to $24 per hour and requires 20 or more hours each week.
Publicada em 13 de jan. de 2026
Design and verify complex Python and SQL problems that test full-pipeline data science skills for advanced AI systems. This worldwide contractor role pays $50 per hour for fewer than 20 hours per week.
Publicada em 3 de dez. de 2025
Build Python infrastructure for LLM training and agent evaluation, including secure sandboxes, task frameworks, and scoring pipelines. This remote contract offers 20+ hours weekly and $34 to $42 per hour in the US or Canada.
Publicada em 25 de jul. de 2025
Build and maintain Python infrastructure for LLM training and agent tooling, including secure sandboxes, CI/CD pipelines, and testing systems. This remote contract role offers $12.50 per hour and requires at least 20 hours per week in eligible countries.
Publicada em 25 de jul. de 2025
Aviso: os pagamentos pela OpenTrain para freelancers no Brasil ainda não estão disponíveis.
