Code is unusual in AI training work because correctness is checkable. A model's code either compiles and does the thing or it does not, which makes evaluation tractable and makes the work steadier than most categories.
What the listings actually pay
It is also one of the few well-paid entry points that does not require a formal credential. Several platforms qualify engineers through an assessment rather than a degree check, so demonstrated ability is the whole barrier.
| # | Role | Advertised rate | Platform |
|---|---|---|---|
| 1 | Product & Engineering Expert | $150 to $350 an hour | micro1 |
| 2 | CUDA Engineering Expert | $300 to $300 an hour | Mercor |
| 3 | Chief Engineer / Senior Mechanical Engineer | $200 to $300 an hour | micro1 |
| 4 | AI/ML Engineer, Internal Platforms | $160 to $300 an hour | micro1 |
| 5 | Principal / Lead Systems Engineer | $150 to $300 an hour | micro1 |
| 6 | Machine Learning Engineer Talent Network | $70 to $250 an hour | Mercor |
| 7 | Infrastructure / Site Reliability Engineer (SRE) | $200 to $200 an hour | Mercor |
| 8 | UK-Based Data Engineering Experts | $140 to $200 an hour | Mercor |
| 9 | AI Software Engineering Domain Expert | $100 to $200 an hour | micro1 |
| 10 | AI/ML Engineer | $70 to $200 an hour | micro1 |
Source: 242 live listings on this board that publish a rate, read directly from each posting on 2026-11-09. Listings without a published rate are excluded rather than estimated.
What moves your rate
Across 242 live engineering listings on our board that publish a rate, the median top-of-range is $100 an hour, reaching $350. The higher end favours specific stacks and genuinely senior review work rather than general familiarity with a language.
How to apply
Every role above links to its own page with the full requirements and a direct application link. Applications are completed on the hiring platform and typically take a few minutes, with a short skills assessment in place of an interview.
Two things are worth doing before you apply. Check whether the role accepts applicants from your country using the eligibility checker, and run the advertised rate through the take-home calculator, because this is contract work and the headline rate is before self-employment tax.
Frequently asked questions
Do I need a computer science degree?
Often not. Several platforms qualify engineers by assessment, so demonstrated ability matters more than a specific credential.
What languages are most in demand?
Python appears most often, with JavaScript, TypeScript, Java, C++ and Go all recurring. Demand shifts with what labs are working on.
What does code evaluation pay?
Across 242 live engineering listings publishing a rate, the median top-of-range is $100 an hour, with the highest at $350.
Is this just writing unit tests?
No. It is typically assessing whether generated code is correct, idiomatic and safe, and explaining precisely why when it is not. The explanation is often the valuable part.
Will this work still exist as models improve?
The work shifts toward harder cases as models improve at easy ones. That has raised the expertise bar over time rather than eliminating the category.
See every live role
The full board updates several times a week, with the advertised rate on each listing and closed roles removed.