Security Engineer

Mercor
San Francisco, CA

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: Red Team Specialist

Type: Full-time or Part-time Contract Work

Compensation: $29/hour

Location: Remote ; Geography restricted to USA, Brazil

Role Responsibilities

  • Evaluate conversational AI models for vulnerabilities through jailbreaks, prompt injections, and misuse cases.
  • Generate high-quality human data by annotating failures, classifying vulnerabilities, and flagging systemic risks.
  • Apply structure by following taxonomies, benchmarks, and playbooks to maintain consistent testing.
  • Document reproducibly by producing reports, datasets, and attack cases that customers can act on.
  • Work independently and asynchronously to meet deadlines while improving AI model performance .

Qualifications

Must-Have

  • Prior experience in red teaming (AI adversarial work, cybersecurity, socio-technical probing).
  • Native-level fluency in English and Brazilian Portuguese .
  • Strong communication skills to explain risks clearly to technical and non-technical stakeholders.

Preferred

  • Experience in Adversarial ML (jailbreak datasets, prompt injection, RLHF/DPO attacks, model extraction).
  • Background in Cybersecurity (penetration testing, exploit development, reverse engineering).
  • Expertise in Socio-technical risk (harassment/disinfo probing, abuse analysis, conversational AI testing).

Compensation & Legal

  • Hourly contractor , Paid weekly .

Application Process (Takes 20–30 mins to complete)

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

Resources & Support

  • For details about the interview process and platform information, please check:
  • For any help or support, reach out to: [email protected]

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

Posted 2026-03-19

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