Skip to content
AI Training Pay
esc
  • Loading roles…
  • Pages and tools

OpenTrain

Scientific Glassblower (Custom Laboratory Glass Shop)

You will provide expert feedback used to train AI systems on custom laboratory glassware design and manufacture. The work includes reviewing customer sketches, judging whether apparatus can be built reliably, and explaining fabrication choices, risks, and trade-offs.

Field
Generalist
Where
United States, Algeria, Argentina, Austria, Bahrain, Bangladesh +46 more
Commitment
part time
Posted
3 days ago

How this pay compares

At $40/hr (the midpoint of $20 to $60), this role pays more than 30% of the 206 open generalist roles with a listed pay range, below the median of $60.

Among platforms with 10 or more priced generalist roles, Alignerr has the highest median ($80/hr across 17 roles) and micro1 the lowest ($50/hr across 54).

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

Per week, before tax

$600

Per month, if the work is steady

$2,600

Tax
Contract pay arrives with no tax withheld. A US contractor at this rate and these hours would set aside about $657 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 generalist roles on each platform

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

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

All 238 open generalist roles →

The full listing

As posted on OpenTrain AI. See the original

The work

You will provide expert feedback used to train AI systems on custom laboratory glassware design and manufacture. The work includes reviewing customer sketches, judging whether apparatus can be built reliably, and explaining fabrication choices, risks, and trade-offs.

You will work with borosilicate and quartz glass, using knowledge of lathe and bench operations, joint design, glass-to-metal seals, graded seals, stress control, and annealing.

  • Review sketches for wall thickness, stress points, design integrity, and production challenges.
  • Provide technical guidance on custom apparatus made with lathe and bench techniques.
  • Recommend joint types, materials, glass-to-metal seals, and graded seals for the intended use.
  • Recommend and document annealing schedules that reduce stress and support reliable finished glassware.
  • Suggest design changes that improve manufacturability, durability, or performance.
  • Prepare detailed quotations based on design complexity, materials, and feasibility.
  • Explain project risks, alternative approaches, and technical recommendations in writing and conversation.

What it pays and takes

This is a remote, part-time contractor role.

  • Pay: $20 to $60 per hour.
  • Location: Remote; open to candidates in the countries specified in the listing.
  • Language: Professional fluency in English.
  • Experience: Extensive custom laboratory glass apparatus fabrication in a university or company scientific glass shop.
  • Technical skills: Expert lathe and bench glassworking in borosilicate and quartz.
  • Design knowledge: Technical sketches, stress analysis, wall thickness, joint configurations, materials compatibility, and annealing schedules.
  • Sealing experience: High-quality glass-to-metal and graded seals for laboratory applications.
  • Communication: Clear written and verbal communication in technical and consultative settings.

How it works

You apply here in about two minutes and finish on the hiring platform. The next step is a short AI interview (technical roles include a coding challenge). Passing it is how you qualify for paid tasks, so take it soon after you are invited.

The hiring platform's application for this job asks for your resume, your LinkedIn profile, your phone number, your location and answers to 7 screening questions.

About AI training work

AI training work uses human expertise to prepare examples, review information, and evaluate results so AI systems can improve. Specialists are paid for this work because practical knowledge helps make those examples and evaluations accurate and useful.

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 $20-60/hr since Nov 10, 2026 with no change.

Across OpenTrain AI's generalist roles, the median listed pay was $40/hr on Nov 1, 2026 (50 roles) and is $61/hr as of Nov 11, 2026 (114 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 generalist roles

All 238 generalist roles →