STEM Expert, Spanish (Spain) - review AI outputs in your specialty

Mercor; United States; Remote; USD 34,000 - 55,000; Part time

Job summary

Mercor seeks experienced scientists and engineers who are native or fluent in Spanish to train and evaluate AI agents on realistic professional tasks. You will work in realistic digital workspaces, reviewing documents, emails, and industry tools to create and review tasks that mirror your own professional activity.

Your role involves writing realistic tasks in Spanish, defining grading criteria, and reviewing AI-generated work for accuracy and adherence to local rules and terminology.

Qualifications

• Experience as a scientist or engineer in research or industry (master's or PhD a plus).
• Native or fluent in Spanish.
• Bachelor's degree from a recognized institution in Spain.
• Comfortable with quantitative analysis, technical documentation and data-heavy problem solving.

Responsibilities

• Work in realistic digital workspaces with documents, spreadsheets, email, chat and industry tools to create and review tasks.
• Write tasks in Spanish that colleagues or clients might send, grounded in local practice, regulations and terminology.
• Define what good looks like by writing grading criteria and checking AI agent outputs against standards.
• Review AI work by checking step-by-step results and correcting mistakes.

Skills

Quantitative analysis

Technical documentation

Data-heavy problem solving

Education

Bachelor's degree from a recognized institution in Spain

Master's or PhD in a related field (preferred)

Job description

We're looking for experienced scientists and engineers who are native or fluent in Spanish to help train and evaluate AI agents on realistic professional tasks.

What you'll do:

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job.

Your work will include:

• Building workspaces: reviewing files, memos and records a real team would have for a project or case.
• Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
• Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
• Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.

Requirements:

• Experience as a scientist or engineer in research or industry (master's or PhD a plus)
• Native or fluent in Spanish
• Bachelor's degree from a recognized institution in Spain
• Comfortable with quantitative analysis, technical documentation and data-heavy problem solving

Details:

Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.