OpenTrain

Professional Engineer AI Evaluation Expert

Use professional engineering judgment to create realistic material for testing how AI models reason about engineering work. You will explain your decisions and assess whether model answers meet technical, code, and safety standards.

Field: Engineering
Where: United States, Albania, Algeria, Antigua and Barbuda, Armenia, Australia +89 more
Commitment: part time
Hours: up to 20/week
Posted: 6 days ago

Pay data for your profession: Engineering AI trainer jobs

How this pay compares

The title points to rating and reviewing ai output: judging a model's answers or code against guidelines, such as which of two is better or whether one is correct and safe. What each kind of AI training work pays

At $148/hr (the midpoint of $105 to $190), this role pays more than 94% of the 207 open engineering roles with a listed pay range, above the median of $80.

Among platforms with 10 or more priced engineering roles, Mercor has the highest median ($88/hr across 35 roles) and micro1 the lowest ($60/hr across 28).

OpenTrain AI roles that closed since late October stayed listed a median of 31 days (122 roles). OpenTrain AI posted this one 6 days ago.

Computed from 2,746 open roles we track across Mercor, micro1, Handshake AI, Alignerr, Appen and OpenTrain AI, refreshed daily. Midpoints of listed ranges; “up to” ceilings are left out of medians.

What you would earn at this rate

Where in the listed range$148/hrHours a week (listing allows up to 20)20 hrs

Per week, before tax

$2,950

Per month, if the work is steady

$12,783

Show in

Tax: Contract pay arrives with no tax withheld. A US contractor at this rate and these hours would set aside about $3,232 a month for self-employment tax plus federal income tax at the 12% bracket (25%, before state tax). Outside the US, your own country's rules apply.

Assumes paid hours only; unpaid assessments, onboarding and gaps between projects lower the real figure. Full take-home calculator · Track what you actually earn

Open engineering roles on each platform

The same kind of work, priced on every platform we track, with the best-paid open role on each.

Platform	Open	Median	Best-paid open role
Mercor	36	$88/hr	Infrastructure / Site Reliability Engineer (SRE)$200/hr
OpenTrain AIthis role	132	$85/hr	Chief Engineer / Senior Mechanical Engineer$200-300/hr
Alignerr	14	$61/hr	Robotics Technician$40-120/hr
micro1	29	$60/hr	Member of Technical Staff, Research Engineering$400k-800k/yr
Handshake AI	52	up to $85/hr	Engineering LeadUp to $195/hr

“Up to” rows list only ceilings, so their median is a maximum, not comparable with the range midpoints above them.

All 263 open engineering roles →

The full listing

As posted on OpenTrain AI. See the original

The work

Write scenarios about engineering design, review, and approval decisions.
Create reference answers that explain relevant code requirements and safety reasoning.
Rate AI outputs for technical accuracy and code compliance.
Flag designs that seem plausible but do not meet engineering or safety standards.
Document the reasoning behind professional engineering decisions.

What it pays and takes

This is remote, asynchronous contractor work with ongoing project tasks. There are no fixed hours, and the workload can be adjusted.

Pay: $105 to $190 per hour, paid weekly via Stripe.
Time: At least 20 hours per week.
Location: Remote; candidates must be based in an eligible country.
Required: An active Professional Engineer license in at least one US state.
Required: At least two years of professional practice in an engineering discipline.
Required: Experience with design review and responsible charge of engineering work.
Required: Clear written English for documenting technical reasoning.
Helpful: PE licenses in multiple states; experience with plan review, permitting, or expert witness work; or expertise in civil, mechanical, or electrical engineering.

How it works

Apply on OpenTrain with your resume, then complete the application on the hiring site.

About AI training work

AI training uses examples and reviews created by people to help teach and test AI systems. Engineering expertise helps assess whether model answers reflect sound technical judgment, code compliance, and safety.

From applying to your first payment on OpenTrain AI

1
Create a profile
Create a free OpenTrain profile with your domains, languages and hourly rate.
2
Apply
Apply to the listing. Some listings hire through OpenTrain; others send you to the hiring platform.
3
Funded milestones
The client funds each milestone before work starts.
4
First payment
OpenTrain pays out to your connected payout method when the client approves the milestone. It doesn't publish a fixed payout schedule.

Sources: OpenTrain: AI training careers, OpenTrain docs: invoicing and payouts

Full OpenTrain AI profile: watch-outs and the public record →

Pay history

OpenTrain AI has listed this role at $105-190/hr since Nov 7, 2026 with no change.

Across OpenTrain AI's engineering roles, the median listed pay was $69/hr on Nov 1, 2026 (50 roles) and is $85/hr as of Nov 11, 2026 (130 roles).

What workers report about OpenTrain AI

Anonymous reports from people who applied or worked there: whether they got work, what they were paid and how fast.

Other engineering roles

All 263 engineering roles →