Remote STEM Researcher — Spanish AI Training

Mercor; Madrid; Remote; EUR 21,000 - 41,000; Part time

Job summary

Mercor is seeking experienced scientists and engineers who are fluent in Spanish to train and evaluate AI agents on realistic professional tasks. You will work in realistic digital workspaces, drafting tasks, defining grading criteria, and reviewing an agent's step-by-step work to ensure accuracy and adherence to local rules.

The role emphasizes experience in research or industry, a Spanish degree from a recognized institution, and strong quantitative and documentation skills.

Qualifications

• Experience as a scientist or engineer in research or industry.
• Comfortable with quantitative analysis, technical documentation and data-heavy problem solving.

Responsibilities

• Train and evaluate AI agents on realistic professional tasks.
• Create and review tasks in digital workspaces with documents, emails, and industry tools.
• Define what good looks like by writing grading criteria and checking agent outputs.

Skills

Quantitative analysis

Technical documentation

Education

Bachelor's degree in Spain

Master's or PhD a plus

Job description

Mercor is seeking experienced scientists and engineers who are fluent in Spanish to train and evaluate AI agents on realistic professional tasks. You will work in realistic digital workspaces, drafting tasks, defining grading criteria, and reviewing an agent's step-by-step work to ensure accuracy and adherence to local rules.

The role emphasizes experience in research or industry, a Spanish degree from a recognized institution, and strong quantitative and documentation skills.