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STEM PhD Expert Fully Remote

Mercor


Job Location:

Madrid - Spain

Monthly Salary: Not provided by the employer
Posted: 6 September 2026 (8 hours ago)
Application Deadline: 4 December 2026
Vacancies: 1 Vacancy

Job Summary

About the job

Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco our investors include Benchmark General Catalyst Peter Thiel Adam DAngelo Larry Summers and Jack Dorsey.

Position: Bilingual Spanish STEM Expert (PhD) AI Safety
Type: Contract
Compensation: $58$62/hour
Location: Remote

Role Responsibilities

  • Write expert-level prompts in Spanish across specialized scientific topics.
  • Evaluate and annotate model responses for scientific accuracy and appropriate handling of sensitive content.
  • Apply structured guidelines to classify prompts and conversations.
  • Work independently and asynchronously to improve AI model safety.
  • Collaborate with AI research teams to ensure accuracy and depth in model outputs.

Qualifications

Must-Have

  • PhD in chemistry biology or a related field.
  • Native or near-native fluency in Spanish and business-level written English.
  • Familiarity with modern laboratory and computational techniques.
  • Sound judgment in scientific safety and responsible handling of dual-use information.

Preferred

  • Based in Spain or Western Europe.
  • Expertise in radiochemistry nuclear chemistry or related fields.
  • Depth in specific subfields like organic synthesis or molecular biology.
  • Experience in chemical safety biosafety or hazardous-materials handling.
  • Experience reviewing or grading technical content.

Start Date

  • Immediate

Application Process (Takes 2030 mins to complete)

  • Upload resume
  • AI interview based on your resume
  • Submit form

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PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.