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OpenTrain

Engineering Expert for AI Training

You will help improve large language models through engineering-focused writing, research, and evaluation. The work covers hardware-related and other engineering topics, and assignments become available as projects progress.

Field
Engineering
Where
United States
Posted
3 days ago

Pay data for your profession: Engineering AI trainer jobs

How this pay compares

At $75/hr, this role pays more than 39% of the 207 open engineering roles with a listed pay range, below 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 3 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

Rate

$75/hr

Per week, before tax

$1,125

Per month, if the work is steady

$4,875

Tax
Contract pay arrives with no tax withheld. A US contractor at this rate and these hours would set aside about $1,232 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.

PlatformOpenMedianBest-paid open role
Mercor36$88/hrInfrastructure / Site Reliability Engineer (SRE)$200/hr
OpenTrain AIthis role132$85/hrChief Engineer / Senior Mechanical Engineer$200-300/hr
Alignerr14$61/hrRobotics Technician$40-120/hr
micro129$60/hrMember of Technical Staff, Research Engineering$400k-800k/yr
Handshake AI52up to $85/hrEngineering 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

You will help improve large language models through engineering-focused writing, research, and evaluation. The work covers hardware-related and other engineering topics, and assignments become available as projects progress.

You will work independently and explain technical ideas in clear, accurate language for AI training tasks.

  • Write prompts based on engineering concepts and specialized knowledge.
  • Research engineering topics with help from AI tools.
  • Evaluate model responses for accuracy, clarity, and quality.
  • Explain complex engineering ideas in precise, accessible writing.

What it pays and takes

This is remote, asynchronous work for independent contractors. It is generally part time, with no minimum hour requirement.

  • Pay: up to $75 per hour.
  • Location: Open to candidates in the United States.
  • Work type: Remote, asynchronous independent contractor work.
  • Education: Bachelor's degree in mechanical, industrial, civil, petroleum, materials, or aerospace engineering.
  • Skills: Strong engineering knowledge and excellent written communication.
  • Requirements: Explain complex engineering topics clearly and accurately.
  • Helpful background: AI-assisted research, prompt development, language model evaluation, or other AI training work.

How it works

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

About AI training work

AI training is the human work behind systems that generate and understand text. Contributors write examples, review model responses, and apply subject knowledge so AI systems produce more accurate and useful results. OpenTrain helps people find this kind of work, build a profile, and apply through one account.

From applying to your first payment on OpenTrain AI

  1. 1

    Create a profile

    Create a free OpenTrain profile with your domains, languages and hourly rate.

  2. 2

    Apply

    Apply to the listing. Some listings hire through OpenTrain; others send you to the hiring platform.

  3. 3

    Funded milestones

    The client funds each milestone before work starts.

  4. 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 $75/hr since Nov 10, 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 →