AI Model Evaluator
Mercor
Job Overview
Who's the hiring manager?
Sign up to PitchMeAI to discover the hiring manager's details for this job. We will also write them an intro email for you.
Job Description
About Mercor
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: AI Model Evaluator
Type: Full-time or Part-time Contract Work
Compensation: $18/hour
Location: Geography restricted to Mexico, USA
Role Responsibilities
- Evaluate LLM-generated responses on their ability to effectively answer user queries.
- Conduct fact-checking using trusted public sources and external tools.
- Generate high-quality human evaluation data by annotating response strengths, areas for improvement, and factual inaccuracies.
- Assess reasoning quality, clarity, tone, and completeness of responses.
- Ensure model responses align with expected conversational behavior and system guidelines.
- Apply consistent annotations by following clear taxonomies, benchmarks, and detailed evaluation guidelines.
Qualifications
Must-Have
- Bachelor’s degree
- Native speaker or ILR 5/primary fluency (C2 on the CEFR scale) in Spanish
- Significant experience using large language models (LLMs)
- Excellent writing skills
- Strong attention to detail
- Adaptable and comfortable moving across topics, domains, and customer requirements
- Background or experience in domains requiring structured analytical thinking
- Excellent college-level mathematics skills
Preferred
- Prior experience with RLHF, model evaluation, or data annotation work
- Experience writing or editing high-quality written content
- Experience comparing multiple outputs and making fine-grained qualitative judgments
- Familiarity with evaluation rubrics, benchmarks, or quality scoring systems
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: https://talent.docs.mercor.com/welcome/welcome
For any help or support, reach out to: support@mercor.com
PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.
Key skills/competency
- LLM Evaluation
- Data Annotation
- Fact-Checking
- Spanish Fluency (Native/C2)
- Analytical Thinking
- Written Communication
- Attention to Detail
- RLHF (Reinforcement Learning from Human Feedback)
- Model Quality Assessment
- Taxonomy Application
How to Get Hired at Mercor
- Research Mercor's culture: Study their mission, values, recent news, and employee testimonials on LinkedIn and Glassdoor.
- Tailor your resume for AI Model Evaluator: Customize your resume to highlight experience in LLM evaluation, data annotation, and strong analytical thinking.
- Ace the AI interview: Prepare for Mercor's AI interview by practicing common questions and showcasing your communication and problem-solving skills.
- Emphasize Spanish fluency: Clearly demonstrate your native or C2 level Spanish fluency, as it's a critical requirement for this role.
- Showcase attention to detail: Provide examples of your meticulous fact-checking and ability to follow detailed evaluation guidelines.
Frequently Asked Questions
Find answers to common questions about this job opportunity
Explore similar opportunities that match your background