STEM Expert, Spanish (Spain)

Mercor; India; Remote; INR 5,336,000 - 7,599,000; Part time

Benefits offered by this job

Weekly payments

Remote work

Job summary

Mercor is seeking a STEM Expert fluent in Spanish to help train and evaluate AI agents on realistic professional tasks. You will work in realistic digital workspaces, crafting tasks and grading criteria grounded in local practice and terminology. This role is remote, about 21 hours per week, paid hourly, with weekly payments via Stripe or Wise.

Prior research or industry experience is valued. The position offers flexible scheduling and the chance to contribute to advanced AI systems with

Qualifications

• Experience as a scientist or engineer in research or industry.
• Native or fluent in Spanish.
• Bachelor’s degree from a recognized institution in Spain.
• Strong quantitative analysis and technical documentation.

Responsibilities

• Build workspaces: review files, memos and records for a project or case.
• Write tasks: craft realistic requests in Spanish grounded in local practice.
• Define what good looks like: write clear grading criteria for AI work.
• Review AI work: identify mistakes and correct them in step-by-step outputs.

Skills

Spanish fluency

Quantitative analysis

Technical documentation

Education

Bachelor’s degree (Spain)

Advanced degree preferred (MS/PhD)

Job description

STEM Expert, Spanish (Spain)

Company: Mercor

Compensation: $50 per hour

Commitment: Hourly contract

Location: Remote

Referral Reward: Earn up to $200 per successful referral.

Referral Link: https://t.mercor.com/qCFpX

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. We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.

Contract and Payment Terms:

• You will be engaged as an independent contractor.
• This is a fully remote role that can be completed on your own schedule.
• Projects can be extended, shortened, or concluded early depending on needs and performance.
• Your work at Mercor will not involve access to confidential or proprietary information from any employer, client, or institution.
• Payments are weekly on Stripe or Wise based on services rendered.
• Please note: We are unable to support H1-B or STEM OPT candidates at this time.

About Mercor

Mercor partners with leading AI labs and enterprises to train frontier models using human expertise.

You will work on projects that focus on training and enhancing AI systems.

You will be paid competitively, collaborate with leading researchers, and help shape the next generation of AI systems in your area of expertise.