AI Model Evaluator

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

This is a full-time or part-time contract opportunity with a compensation of $41/hour. The role is geographically restricted to Israel and the USA.

Role Responsibilities

• Evaluate LLM-generated responses for effectiveness in answering 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 Hebrew
• Significant experience using large language models (LLMs)
• Excellent writing skills
• Strong attention to detail
• Adaptable across topics, domains, and customer requirements
• Background in domains requiring structured analytical thinking
• Excellent college-level mathematics skills

Qualifications: Preferred

• 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

Compensation & Legal

This is an hourly contractor position, paid weekly via Stripe Connect.

Application Process

The application process takes approximately 20-30 minutes and involves:

• Uploading your resume
• Completing an AI interview based on your resume
• Submitting the application form

Resources & Support

For interview details and platform information, visit: https://talent.docs.mercor.com/welcome/welcome. For assistance, contact support@mercor.com. Mercor's team reviews applications daily; ensure you complete all steps for consideration.

Key skills/competency

• Large Language Models (LLMs)
• Model Evaluation
• Fact-checking
• Data Annotation
• Hebrew Fluency (Native/C2)
• Writing Skills
• Analytical Thinking
• Attention to Detail
• RLHF (Reinforcement Learning from Human Feedback)
• Taxonomy Application