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Job description
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 D'Angelo , Larry Summers , and Jack Dorsey .
Position
Bilingual Portuguese STEM Expert (PhD) — AI Safety
Type: Contract
Compensation: $50–$54/hour
Location: Remote
Commitment: 20+ hours/week
Role Responsibilities
Write expert-level prompts in Portuguese across specialized scientific topics.
Evaluate and annotate model responses for scientific accuracy and helpfulness.
Apply structured guidelines to classify prompts and conversations.
Strengthen model handling of sensitive content in Portuguese .
Work independently and asynchronously to meet deadlines.
Qualifications
Must-Have
PhD in chemistry , biology , or a closely related field.
Native or near-native fluency in Portuguese .
Business-level written English .
Deep familiarity with modern laboratory and computational techniques.
Sound judgment around scientific safety and dual-use information.
Preferred
Based in Portugal or Western Europe .
Expertise in radiochemistry , nuclear chemistry , or related fields.
Depth in subfields like organic synthesis , molecular biology , or virology .
Experience with chemical safety, biosafety, or hazardous-materials handling.
Experience reviewing or red-teaming technical content.
Start Date
Immediate
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Who can apply
Review the original listing for work authorization, qualifications and employer requirements.