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Hiring now · posted 92d ago Science Contract · Remote

Applied Chemistry Benchmark Specialist

$61–$77/hr

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

Remote · United States Language: English Posted 13 Aug 2026

Applied Chemistry Benchmark Specialist is remote AI-training work for scientists & researchers, paying $61–$77/hr, open to applicants in United States. Posted 13 Aug 2026, still open on 13 Nov 2026. Zekai lists it for free; the application goes to the employer's platform.

About this role

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Role Overview

We are seeking expert chemists to author and review high-quality academic assessment content for an AI research initiative. You will write and verify rigorous multiple-choice questions across core chemistry domains, evaluate solution quality, and help establish gold-standard benchmarks used to advance AI capabilities.

You will be assigned one of two task types:

  • Question Authoring — Create original, challenging multiple-choice questions in your area of chemistry expertise, rate their difficulty, and submit them for review.

  • Question Verification — Review pre-written questions for accuracy, clarity, and rigor. Edit where needed, rate difficulty, and document any changes made.

Chemistry Domains Covered

Materials, Polymer & Electronic Chemistry, Industrial & Process Chemistry, Energy Storage & Environmental Chemistry, Pharmaceutical & Agrochemical Chemistry, Consumer, Food & Specialty Chemicals.

Key Responsibilities

  • Author original chemistry questions that test deep conceptual understanding, not surface-level recall

  • Ensure questions are unambiguous, self-contained, and precisely defined — all necessary information must be in the problem statement

  • Rate each question's difficulty: Medium (intro undergraduate), Hard (advanced undergraduate), or Expert (post-graduate and above)

  • Provide 1 correct answer and 9 plausible but subtly incorrect alternatives that challenge expert-level solvers

  • Write step-by-step Chain-of-Thought solutions with clear, concise intermediate steps in markdown format

  • Supply 1–5 academic references per question from reputable sources (peer-reviewed journals, university repositories)

  • For verification tasks: flag issues with clarity, completeness, precision, or solvability and justify any edits made

Ideal Qualifications

  • PhD or doctoral candidate in Chemistry, Biochemistry, Chemical Engineering, or a closely related field

  • Master's degree considered for candidates with exceptional depth in a specific subdomain

  • Strong command of graduate-level chemistry concepts, reaction mechanisms, and quantitative analysis

  • Experience with rigorous academic problem design or chemistry olympiad writing is a strong plus

  • Excellent written English and ability to express complex ideas clearly and concisely

More About the Opportunity

  • Expected commitment: 10+ hours/week

  • Asynchronous, fully remote work

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.
How to get this job

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What to know before you apply

Pay
At the published rate, 10 hours a week would be about $610–$770 and 20 hours about $1,220–$1,540 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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