AI tools, scored for your job
Get paid to train AI
Hiring now · posted today Science Contract · Remote

STEM Expert (MSc./PhD)

$60–$120/hr

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

Remote · Worldwide 10 openings Language: English Posted 16 Oct 2026

About this role

STEM Expert

Pay: $60–$120/hour

Location: Global, fully remote

Job Type: Contractor (~15 hours per week)

Schedule: Flexible—you choose the hours and days you work, including weekends if desired

We are looking for highly skilled STEM and scientific-domain experts to contribute to an AI training project involving technical problem-solving, scientific reasoning, data analysis, and Python.

The work involves solving, reviewing, and validating challenging problems within your area of expertise. A representative task may require analyzing a scientific or mathematical problem, developing a rigorous solution, using Python to perform calculations or simulations, and evaluating whether an AI-generated answer is technically correct.

This is a very coding heavy role. Candidates but have experience using coding agents in their workflow.

Candidates are not expected to be experts across every STEM discipline. We are looking for deep expertise in at least one of the following areas:

  • Chemistry
  • Biology
  • Mathematics
  • Physics
  • Earth Science / Geoscience / Environmental Science
  • Robotics

Adjacent scientific or quantitative disciplines may also be considered where the candidate's expertise is directly relevant.

What You’ll Work On

  • Solve complex scientific, mathematical, or technical problems within your domain of expertise.
  • Review AI-generated solutions for factual, mathematical, and scientific correctness.
  • Identify incorrect assumptions, reasoning errors, missing constraints, and subtle technical mistakes.

Required Qualifications

  • Strong expertise in at least one relevant STEM or scientific domain.
  • Practical proficiency with Python or other coding languages.
  • Strong scientific, mathematical, or quantitative problem-solving ability.

Relevant Python tools may include NumPy, SciPy, pandas, SymPy, Jupyter, or domain-specific scientific libraries. No particular Python library is mandatory.

Expertise may come from academic research, industry, teaching, engineering, independent technical work, or other demonstrated experience. A specific degree or number of years of experience is not strictly required if you can demonstrate strong expertise in your field.

Process

  • Apply to the role and complete the screening questions.
  • Complete an AI interview of approximately 30 minutes.
  • Complete the hiring manager review.

Compensation Structure

Compensation is output-based. Experts are paid per task that meets the project specifications. The time required to complete each task may vary depending on the expert’s experience and workflow.

Minimum submission requirements apply.

Start Timeline & Availability

We typically fill roles within 48 hours and are looking for experts who are ready to begin immediately. If selected, you will be expected to start your first task within 24–48 hours of completing onboarding.

This is a 100% remote contract role, open to applicants worldwide in the countries the employer accepts.

Biology

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.
How to get this job

Your plan for “STEM Expert (MSc./PhD)”

Are you ready? Check what you have

Taken from this listing's own requirements.

0 / 3

What to know before you apply

Pay
At the published rate, 10 hours a week would be about $600–$1,200 and 20 hours about $1,200–$2,400 before tax. Hours depend on the project, so treat this as a ceiling, not a promise.
Location
Open worldwide in the countries the employer accepts. Payments usually go out through services like PayPal or Wise, so check one of them works in your country.
Credentials
The listing asks for a PhD. Put it in the first line of your profile: reviewers screen for it before anything else.
Timing
This listing is new today. Projects can close once they have enough people, so it is worth applying while it is open.
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.
Prepare free with Zekai

3 steps to stand out as one of the best scientists & researchers

  1. 01

    Know the AI tools scientists & researchers use

    Reviewers judge AI answers in your field. Knowing the tools people in your profession actually use helps you spot what good output looks like.

    All 255 AI tools for scientists & researchers →
  2. 02

    Practise with real prompts

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

    Find Evidence for a Thesis Statement

    My thesis is: "[[Insert your thesis statement here]]." From all my sources, pull 5-7 direct quotes that either support or challenge this thesis. For each quote, provide the citation and a one-sentence explanation of its relevance.

    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…

    Prompt library for scientists & researchers →
  3. 03

    Take the free 30-day AI challenge

    Five minutes a day to get confident with AI in your own work. Day 1 is open now, no card needed.

    Start Day 1 free →

    Guides for scientists & researchers

Scientists & Researchers

More paid AI roles for scientists & researchers

Confidential clientAI training · Scientists & Researchers

Research Scientist - Computer Science & Computational Physics

Top pay
  • Remote · Worldwide
  • Contract · flexible hours

Our partner is engaging Research Scientists in Computer Science & Computational Physics to help advance a customer’s …

$100–$400/hr
4d ago
Confidential clientAI training · Scientists & Researchers

Central Bank Expert — Non-G7 Policy Communication

Top pay
  • Remote · United States
  • Contract · flexible hours

We are building expert-authored forecasting and research data used to evaluate and improve AI models on real macro an…

$150–$250/hr
32d ago
Confidential clientAI training · Scientists & Researchers

Physics Expert (PhD / Postdoc)

Top pay14 open
  • Remote · Worldwide
  • Contract · flexible hours

Our partner is engaging Physics Experts (PhD / Postdoc) to contribute deep scientific knowledge and problem-solving s…

$100–$200/hr
39d ago
Confidential clientAI training · Scientists & Researchers

Physics Expert PhD (AMO / Optical Properties of Materials)

Top pay10 open
  • Remote · Worldwide
  • Contract · flexible hours

Our partner is engaging Physics Experts (AMO / Optical Properties of Materials) to contribute their advanced knowledg…

$100–$200/hr
39d ago
Confidential clientAI training · Scientists & Researchers

Quantitative Rates Researcher

Top pay100 open
  • Remote · Worldwide
  • Contract · flexible hours

Our partner is engaging Quantitative Rates Researchers to contribute to a leading investment bank’s algorithmic tradi…

$80–$150/hr
7d ago
new in the last 24 hours

New roles in your inbox every morning

Pick your field. One short email a day, only when new roles open. Unsubscribe any time.

Roles come from public listings and change daily. Pay is what the listing shows; offers depend on your test, experience and country. If you join through a Zekai link, the platform may pay Zekai a fee. Your pay stays the same.

$60–$120/hr
Get paid to train AI →

See Zekai first in Google