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OpenTrain

CAD Tool Specialist (AI Evaluation)

You will create realistic computer-aided design tasks that reflect professional workflows, then assess how well AI models handle them. Your feedback will explain what is technically accurate and what needs improvement.

Field
Engineering
Where
United States
Commitment
part time
Hours
up to 20/week
Posted
3 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 $125/hr, this role pays more than 89% 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 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

$125/hr

Per week, before tax

$2,500

Per month, if the work is steady

$10,833

Tax
Contract pay arrives with no tax withheld. A US contractor at this rate and these hours would set aside about $2,739 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 create realistic computer-aided design tasks that reflect professional workflows, then assess how well AI models handle them. Your feedback will explain what is technically accurate and what needs improvement.

  • Create challenging CAD tasks based on practical workflows and professional design standards.
  • Develop or assess 2D drafting, dimensioning, parametric modeling, constraint-based modeling, and scripted solid modeling.
  • Review assemblies and exports for 3D printing, CNC machining, and laser cutting.
  • Evaluate AI-generated responses for technical quality and accuracy.
  • Give clear, structured written feedback about your decisions.

What it pays and takes

This is a remote, ongoing, project-based contractor opportunity that can be completed alongside another role. Work is self-paced with no set schedule.

  • Pay: up to $125 per hour.
  • Time: 20+ hours per week.
  • Location: open to candidates in the United States.
  • Education: a bachelor's degree or higher in mechanical engineering, architecture, industrial design, civil engineering, or a related field.
  • Experience: at least two years of professional experience with LibreCAD, SolveSpace, OpenSCAD, or Rhino3D.
  • Strong written communication and careful attention to detail.
  • Ability to explain complex CAD and design concepts clearly.
  • Ability to work independently in a remote, asynchronous setting.
  • Helpful experience includes FreeCAD, Fusion 360, SolidWorks, AutoCAD, GD&T, technical drawing standards, scripting, and programmatic design.
  • Professional experience in manufacturing, architecture, engineering, or product design, or a portfolio of published or fabricated designs, can support your application.

How it works

Apply 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 learn from examples, including reviewing model responses and rating their quality. People with practical CAD and design experience help models produce more accurate work by creating realistic tasks and explaining why an answer succeeds or fails.

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 $125/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 →