> Markdown version of [/jobs/ext/3885770-data-science-expert-evaluation-specialist-ai-trainer](https://www.wearedevelopers.com/jobs/ext/3885770-data-science-expert-evaluation-specialist-ai-trainer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Data Science Expert - Evaluation Specialist - AI Trainer

- **Company:** Mercor, Inc.
- **Location:** Philadelphia, PA, United States (Remote available)
- **Experience:** Expert
- **Salary:** $249,600.0
- **Contract:** Permanent contract
- **Skills:** Training Data, A/B Testing, Artificial Intelligence, Python (Programming Language), SQL Databases
- **Published:** October 23, 2026
- **Apply:** https://www.thejobnetwork.com/job/fdb51645-97c3-437a-9c60-d3d2d0bc474e/data-science-expert-evaluation-specialist-ai-trainer

## About the Role

Must-Have

 * 5+ years of professional data science experience in industry.
 * Background in business operations, product, or growth data science at top-tier technology companies.
 * Deep fluency in experiment design, A/B testing, metric definition, SQL/Python analysis, and communicating findings to executive stakeholders.
 * Exceptionally strong written communication.
 * Detail-oriented, consistent, and comfortable having your judgment reviewed and calibrated against peers.

Preferred

 * Prior experience with AI training, evaluation, or human-data projects.

## Description

* Design precise, task-specific grading criteria for real-world data science deliverables, including analyses, models, dashboards, and experiment readouts.
 * Score AI-generated and human work samples against established criteria with detailed, well-reasoned written justifications.
 * Apply consistent, evidence-based judgment to ensure scores are reproducible and defensible.
 * Incorporate structured feedback from senior reviewers and iterate quickly on your work.
 * Collaborate with AI research teams to improve training data quality and downstream performance., PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.