At a glance
Core requirements: Deep ML expertise, selective interview
Prior AI training: ML expertise required, prior AI training helpful
Role summary
Mercor's Expert Interviewer role for machine learning specialists is among the highest-paying AI training work available to UK contributors, with verified pay from £40 to £100 per hour depending on the specific project and the depth of expertise required. Rather than microtasks, contributors conduct long-form interviews and evaluations with AI systems, assessing model reasoning and providing detailed expert feedback. The trade-off is a rigorous interview-based onboarding gate, many applicants are not accepted, and less predictable volume than task-based platforms.
UK-based ML specialists with demonstrable, deep expertise (research, applied ML, or advanced academic background) are the target profile. Pay is confirmed per project before you accept, and is paid via bank transfer. We publish the negatives: the onboarding interview is selective and can take time to schedule, and volume depends on matching to your specific sub-domain, so it should not be treated as a guaranteed weekly income.
This role rewards genuine expertise rather than throughput, making it best suited to confident specialists who can demonstrate their knowledge concretely. It is real, well-paid work, but it is not easy money and not guaranteed income.
Source: Mercor platform
Frequently asked
- How much does the ML expert interviewer role pay in the UK?
- Our verified range is £40–£100/hr, with the top end for in-demand ML specialisms. The exact rate is confirmed per project before you accept.
- Is this role open to UK experts?
- Yes. UK-based ML specialists can apply and are paid via bank transfer.
- Is the application link affiliate?
- Yes. We may earn a referral commission if you're hired through our link, at no cost to you. This does not influence our editorial ranking.
- How hard is it to get accepted?
- Selective. The onboarding interview is the main gate and many applicants are not accepted. Demonstrate genuine, deep ML expertise with concrete examples.
About Mercor
AI interviewer and expert network for long-form model evaluation
Read the full Mercor UK audit →Community notes
Moderated. First comment from any new contributor is held for approval before it appears.
No approved notes yet, be the first to share verified experience.
Side-gig income is usually taxable. Up to £1,000/year is tax-free under the trading allowance, see gov.uk. Information, not tax advice.