Chemistry Experts - (Freelance, Remote, 20+ openings)

Role: Engineering

Rate: $10.00–$85.00 USD/hr

Skills: Data Annotation, Organic Chemistry

This project involves reviewing Al-generated responses, evaluating the reasoning quality

and step-by-step problem-solving, and providing expert feedback that helps models

produce answers that are accurate, logical, and clearly explained. You will assess solutions

for accuracy, clarity, and adherence to the prompt; identify errors in calculations,

methodology, or conceptual understanding; fact-check chemical information across; write

high-quality chemical explanations and model solutions that demonstrate correct methods;

and rate and compare multiple Al responses based on chemical correctness and reasoning

quality.

Compensation

Compensation is competitive and varies based on education level, institution, and prior

experience.

Hiring Profile

• You hold (or are pursuing) a BS, MS, or PhD in Chemistry or a related field.

• Expert at fact-checking information using public sources across multiple domains.

• You communicate physics clearly and turn advanced theory into real-world

solutions.

• English proficiency C1 and above with excellent writing skills.

• Background in research, analytical writing, debate, programming, or physics is

preferred.

• Bonus: Data labeling, RLHF, or Al model evaluation experience.

Application & Onboarding Process

• Apply via partner site - Braintrust will send you an email with detailed instructions.

• Qualification exam (1-2 hours): evaluates your role-specific expertise. Compensation

provided upon passing.

• Project exam (1-2 hours): evaluates your adherence to project guidelines and ability

to produce physics-specific deliverables. Compensation provided upon passing.

Commitment

• We expect a minimum of 17-20 hours per week, however considering the project

scope and timelines the preferred and recommended commitment would be 8

hours/day.

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