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Hiring now · posted 8d ago Language Contract · Remote

STEM Expert, Mandarin Chinese (mainland China)

$50/hr

Published pay. The final rate depends on your test, experience and country.

Remote · United States Language: English Posted 14 Oct 2026

About this role

We're looking for experienced scientists and engineers who are native or fluent in Mandarin Chinese to help train and evaluate AI agents on realistic professional tasks.

What you'll do:

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

  • Building workspaces: reviewing files, memos and records a real team would have for a project or case.
  • Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
  • Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
  • Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.

Requirements:

  • Experience as a scientist or engineer in research or industry (master's or PhD a plus)
  • Native or fluent in Mandarin Chinese
  • Bachelor's degree from a recognized institution in mainland China
  • Comfortable with quantitative analysis, technical documentation and data-heavy problem solving

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

This is a 100% remote contract role. Applicants must be located in: United States.

How applying works

  1. Click Apply now and enter your email.
  2. You go straight to the application. We email you a copy of this role and your link.
  3. Most platforms ask for a CV and a short skills test or AI interview in your field.
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What to know before you apply

Pay
At the published rate, 10 hours a week would be about $500 and 20 hours about $1,000 before tax. Hours depend on the project, so treat this as a ceiling, not a promise.
Location
Only applicants located in United States can be paid for this role. Platforms usually verify where you are, so apply only if you are based there.
Credentials
The listing asks for a PhD. Put it in the first line of your profile: reviewers screen for it before anything else.
Test tips for scientists & researchers
  • Show full derivations; partial reasoning is usually marked down.
  • Check units, assumptions and limiting cases in every AI solution.
  • Write hard original problems that break the model: that skill is in demand.
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    Practise with real prompts

    Many tests ask you to write or judge prompts in your field. Practise on these first.

    Explain a Concept Simply

    Act as a tutor. Explain the concept of [[complex theory or term]] as if I am a first-year student. Use analogies or examples found only within my uploaded sources. After the explanation, ask me a question to check my understandin…

    Create a Timeline of Events

    Scan all provided sources and generate a chronological timeline of all major events, dates, and key figures mentioned related to [[historical event or process]]. For each entry, include the date, a brief description of the event,…

    Prompt library for scientists & researchers →
  3. 03

    Take the free 30-day AI challenge

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