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Mercor · Finance & specialist

Data Science Expert - review AI outputs in your specialty

Listed on Mercor as “Data Science Expert

$120-$170/hrRemoteContractPaid in USD
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What this actually is

You bring your specialist expertise to AI evaluation. The shape of the work varies but the pattern is the same: review outputs, rate quality, write prompts, flag errors. The platform title (Data Science Expert) reflects the rate band and the expertise required, not the day-to-day work.

Can you do this on your visa?

F-2 / F-4 / F-5 / F-6: open. E-1 to E-7: needs concurrent-employment permit. D-2 / D-4 students: S-3 permit, 20 hr/week cap. D-10 / D-8: case by case.

Korean tax on USD income

First 5 years in Korea: foreign-source income only taxed if remitted into Korea. After year 5: worldwide income. Full tax guide.

Original posting from Mercor

1\. Role Overview

Mercor is partnering with a leading AI research organization to engage experienced data scientists for a project focused on evaluating how well AI systems perform real-world data science work. Rather than producing deliverables yourself, you will define what excellent work looks like: designing task-specific grading criteria and scoring completed work samples with rigorous, well-reasoned written justifications.

2\. Key Responsibilities

  • Design precise, task-specific grading criteria for real-world data science deliverables (analyses, models, dashboards, experiment readouts, and written recommendations)
  • Score AI-generated and human work samples against those criteria, with detailed written justifications for every score
  • Apply consistent, evidence-based judgment so that scores are reproducible and defensible
  • Incorporate structured feedback from senior reviewers and iterate quickly on your work

3\. Ideal Qualifications

  • 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 and 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
  • Prior experience with AI training, evaluation, or human-data projects is a strong plus

4\. Application Process

  • Submit your resume or relevant technical background to get started
  • Qualified applicants may be asked to complete a brief technical assessment or submit additional information

Quoted from Mercor’s public listing on 2026-07-21. We don’t edit platform copy; honest framing is in the title and the “what this actually is” block above.

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