Bilingual Stem Phd - Ai Safety

Mercor; Lisboa; Remote; EUR 61,000 - 66,000; Full time

Job summary

Mercor seeks a Bilingual Portuguese STEM Expert (PhD) for AI Safety. This contract role focuses on writing expert prompts in Portuguese and evaluating model outputs for accuracy, safety, and handling of sensitive content. Remote, 20+ hours per week, immediate start.

You will collaborate with AI research teams to improve model safety and performance, applying structured guidelines and working independently to meet deadlines.

Qualifications

• PhD in chemistry, biology or related field.
• Native or near-native Portuguese with business-level English.
• Extensive laboratory and computational technique experience.
• Strong judgment on scientific safety and dual-use handling.

Responsibilities

• Write expert-level prompts in Portuguese across specialized scientific topics.
• Evaluate and annotate model responses for scientific accuracy, helpfulness, and safe handling of content.
• Apply structured guidelines to classify prompts and conversations.
• Collaborate with AI research teams to improve AI model safety and performance.
• Work independently and asynchronously to meet deadlines while enhancing model capabilities.

Skills

Portuguese fluency

English proficiency

Independent work

Scientific judgment

Education

PhD in chemistry or biology

Tools

Laboratory techniques

Computational methods

Job description

Bilingual STEM PhD - AI Safety

Empresa : Mercor
Tipo de Emprego : Periodo Integral
Lisbon Lisbon District Portugal

Descrição do Emprego - Bilingual STEM PhD - AI Safety

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, helpfulness, and appropriate handling of sensitive content.
• Apply structured guidelines to classify prompts and conversations.
• Collaborate with AI research teams to improve AI model safety and performance.
• Work independently and asynchronously to meet deadlines while enhancing model capabilities.

Qualifications

Must-Have

• PhD in chemistry, biology, or a closely related field.
• Native or near-native fluency in Portuguese, plus business-level written English.
• Deep familiarity with modern laboratory and computational techniques in your subfield.
• Sound judgment around scientific safety and responsible handling of dual-use information.

Preferred

• Based in Portugal or the wider Western Europe region.
• Expertise in radiochemistry, nuclear chemistry, energetic materials, or radiation physics.
• Demonstrated depth in a specific subfield such as organic or inorganic synthesis, molecular biology, microbiology, virology, or genetics.
• Research or coursework on chemical safety, biosafety, or hazardous-materials handling.
• Experience reviewing, grading, or red-teaming technical content.

Start Date

• Immediate

Resources & Support

• For details about the interview process and platform information, please check: https://talent.docs.mercor.com/welcome
• For any help or support, reach out to: [e-mail]

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