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OpenTrain

Calibration Technician AI Evaluator

Help improve how AI handles calibration and measurement topics by bringing practical experience to its technical responses.

Field
Engineering
Where
United States
Hours
up to 5/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 $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

$375

Per month, if the work is steady

$1,625

Tax
Contract pay arrives with no tax withheld. A US contractor at this rate and these hours would set aside about $411 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

Help improve how AI handles calibration and measurement topics by bringing practical experience to its technical responses.

  • Write job-related questions based on real calibration and metrology work.
  • Review AI-generated responses for accuracy, relevance, and practical use.
  • Assess calibration procedures, quality expectations, and technical language.
  • Follow written guidelines, work independently, and provide clear feedback.

What it pays and takes

  • Pay: Up to $75 per hour, depending on the project.
  • Hours: Active assignments may involve approximately 5–20 hours per week, depending on project needs. The schedule is flexible and asynchronous.
  • Location: Fully remote; open to candidates in the United States.
  • Experience: Hands-on calibration work using reference standards and test equipment, with results documented within quality systems.
  • Skills: Strong written communication, attention to detail, sound professional judgment, reliability, discretion, and confidentiality with sensitive or proprietary information.
  • Language: Fluent in English.
  • Work type: Independent, project-based contractor work.

Relevant experience

Experience as a Senior Calibration Technician, Metrology Technician, Instrumentation Technician, Test and Measurement Technician, or laboratory technician is relevant. Backgrounds in manufacturing, aerospace, medical devices, pharmaceuticals, energy, or related fields may also be useful.

How it works

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

About AI training work

AI training work uses human judgment to prepare examples and evaluate responses that help AI systems improve. Specialized experience matters because it helps people assess whether technical answers are accurate and useful in real work.

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 →