Mercor · STEM & research
UK-based Data Scientists
Listed on Mercor as “UK-based Data Scientists”
What this actually is
You design problems that stump current AI models, evaluate AI reasoning against the correct answer, write rubrics, and provide expert feedback. Often the highest-paid category because the expertise pool is small. The platform title (UK-based Data Scientists) 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
- Data science profiles
- 5+ years of experience
- Has worked at big tech (Mag7)
- _"for example, Meta / Meta-adjacent backgrounds"_
- Ideally candidates who have worked at big tech in the U.S.
- unlike other projects, they have not indicated need to be from a particular company
- Must be currently based in the U.K.
Quoted from Mercor’s public listing on 2026-07-07. We don’t edit platform copy; honest framing is in the title and the “what this actually is” block above.
Related AI training jobs
Alignerr · STEM & research
CFD Engineer - AI Task Designer (OpenFOAM)
$80-$110/hr · Remote · USD
Alignerr · STEM & research
CFD Engineer - AI Task Designer Remote (OpenFOAM)
$80-$110/hr · Remote · USD
Alignerr · STEM & research
Structural Engineer - AI Task Creator (OpenSees)
$80-$110/hr · Remote · USD
Mercor · STEM & research
Biology / environmental science Evaluator
$80-$120/hr · Remote · USD
More on this platform
About Mercor
AI-interview-based talent network. One application, voice interview with their AI, then matched to projects across coding, research, and specialist work. Pay scales with track and seniority.
Mercor review: AI-interview talent network
4.1/5 on Glassdoor, fastest-growing platform in the category (+509% YoY). What the AI video interview actually asks, real pay across coding/research/medical/legal/finance tracks ($25-$200/hr), and the project-availability problem.
See all AI training jobs
Browse by category and compare across all eight platforms we cover.