Chemist, Chemistry AI Training Reviewer (English)

You will evaluate AI-generated answers to chemistry questions and help improve how models solve and explain problems. The work focuses on accuracy, reasoning, chemical facts, and clear written explanations.

• Review chemistry answers for accuracy, clarity, and whether they follow the prompt.
• Find errors in calculations, methods, chemical facts, and conceptual understanding.
• Write accurate chemistry explanations and model solutions.
• Rate and compare multiple AI responses for correctness and reasoning quality.
• Help improve model accuracy, fluency, and relevance to the context.

What it pays and takes

This is expert-level, part-time contract work. A strong chemistry background is required, along with the ability to assess detailed reasoning and write clearly in English.

• Pay: $30 to $70 per hour.
• Time: 20 or more hours per week.
• Location: Open to candidates in Brazil, Germany, India, and the United States.
• Education: MS or PhD in Chemistry or a related field.
• Language: Excellent English writing skills.
• Knowledge: Chemical reactions, stoichiometry, organic mechanisms, analytical methods, and physical or quantum chemistry.
• Preferred: Research, analytical writing, debate, programming, or chemistry experience.
• A plus: Experience with data labeling, RLHF, or AI model evaluation.
• Work type: Part-time contract role.

How it works

Apply on OpenTrain with your resume, then complete the application on the hiring site.

About AI training work

AI training is the human work behind systems that generate and evaluate answers. OpenTrain helps people find these roles and apply, while experienced specialists contribute the subject knowledge used to improve AI systems.