Cincinnatus is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for full-time and long-term contingent roles. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives. Roles hired through Cincinnatus are not project-based or freelance engagements. They are structured, role-based positions that typically involve full-time or fixed-term commitments, close collaboration with a client's internal teams, and integration into standard enterprise workflows. Cincinnatus is a legal entity separate from Mercor. While opportunities may be discovered through Mercor's platform, employment, onboarding, payroll, and benefits for these roles are administered by Cincinnatus. Equal Employment Opportunity Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic. Cincinnatus is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans throughout the job application process.
AI Evaluation Specialist
Location
United States + 2 moreAll locations: United States, Korea, Republic Of
Posted
2 days ago
Salary
$36 / hour
Seniority
Mid Level
Job Description
Role Description
The AI Evaluation Specialist will be responsible for:
- Evaluating LLM-generated responses on their ability to effectively answer user queries.
- Conducting fact-checking using trusted public sources and external tools.
- Generating high-quality human evaluation data by annotating response strengths, areas for improvement, and factual inaccuracies.
- Assessing reasoning quality, clarity, tone, and completeness of responses.
- Ensuring model responses align with expected conversational behavior and system guidelines.
- Applying consistent annotations by following clear taxonomies, benchmarks, and detailed evaluation guidelines.
Qualifications
- Bachelor’s degree.
- Native speaker or ILR 5/primary fluency (C2 on the CEFR scale) in Korean.
- 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 (e.g., research, policy, analytics, linguistics, engineering).
- Excellent college-level mathematics skills.
Requirements
- Prior experience with RLHF, model evaluation, or data annotation work (preferred).
- Experience writing or editing high-quality written content (preferred).
- Experience comparing multiple outputs and making fine-grained qualitative judgments (preferred).
- Familiarity with evaluation rubrics, benchmarks, or quality scoring systems (preferred).
Benefits
- Compensation: $36/hour.
- Flexible work type: Full-time or Part-time Contract Work.
- Location: Geography restricted to South Korea, USA.
Application Process
- Upload resume.
- AI interview based on your resume.
- Submit form.
For details about the interview process and platform information, please check: Interview Process Details .
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.
Job Requirements
- Bachelor’s degree.
- Native speaker or ILR 5/primary fluency (C2 on the CEFR scale) in Korean.
- 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 (e.g., research, policy, analytics, linguistics, engineering).
- Excellent college-level mathematics skills.
- Prior experience with RLHF, model evaluation, or data annotation work (preferred).
- Experience writing or editing high-quality written content (preferred).
- Experience comparing multiple outputs and making fine-grained qualitative judgments (preferred).
- Familiarity with evaluation rubrics, benchmarks, or quality scoring systems (preferred).
Benefits
- Compensation: $36/hour.
- Flexible work type: Full-time or Part-time Contract Work.
- Location: Geography restricted to South Korea, USA.
- Application Process
- Upload resume.
- AI interview based on your resume.
- Submit form.
- For details about the interview process and platform information, please check: Interview Process Details .
- 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.
Related Guides
Related Job Pages
More AI Research Scientist Jobs
Junior Linguistics Expert - Freelance AI Trainer
MindriftApply → Pass qualification(s) → Join a project → Complete tasks → Get paid. Project time expectations: Tasks are estimated to require around 10–20 hours per week during active phases, based on project requirements; This is an estimate, not a guaranteed workload, and applies only while the project is active. Note: Rates vary based on expertise, skills assessment, location, project needs, and other factors. Higher rates may be offered to highly specialized experts. Lower rates may apply during onboarding or non-core project phases. Payment details are shared per project.
Please submit your resume in English and indicate your level of English proficiency.Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is...
Junior Linguistics Expert - Freelance AI Trainer
MindriftApply → Pass qualification(s) → Join a project → Complete tasks → Get paid. Project time expectations: Tasks are estimated to require around 10–20 hours per week during active phases, based on project requirements; This is an estimate, not a guaranteed workload, and applies only while the project is active. Note: Rates vary based on expertise, skills assessment, location, project needs, and other factors. Higher rates may be offered to highly specialized experts. Lower rates may apply during onboarding or non-core project phases. Payment details are shared per project.
Please submit your resume in English and indicate your level of English proficiency.Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is...
Junior Linguistics Expert - Freelance AI Trainer
MindriftApply → Pass qualification(s) → Join a project → Complete tasks → Get paid. Project time expectations: Tasks are estimated to require around 10–20 hours per week during active phases, based on project requirements; This is an estimate, not a guaranteed workload, and applies only while the project is active. Note: Rates vary based on expertise, skills assessment, location, project needs, and other factors. Higher rates may be offered to highly specialized experts. Lower rates may apply during onboarding or non-core project phases. Payment details are shared per project.
Please submit your resume in English and indicate your level of English proficiency.Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is...
Junior Linguistics Expert - Freelance AI Trainer
MindriftApply → Pass qualification(s) → Join a project → Complete tasks → Get paid. Project time expectations: Tasks are estimated to require around 10–20 hours per week during active phases, based on project requirements; This is an estimate, not a guaranteed workload, and applies only while the project is active. Note: Rates vary based on expertise, skills assessment, location, project needs, and other factors. Higher rates may be offered to highly specialized experts. Lower rates may apply during onboarding or non-core project phases. Payment details are shared per project.
Please submit your resume in English and indicate your level of English proficiency.Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is...
