Pasiflora AI is building the human layer for artificial intelligence. We connect world-class domain experts with frontier AI labs to generate the high-quality human knowledge that makes AI systems more capable, accurate, and safe. We're expanding our network of PhD-level scientists and engineers across STEM fields. This is remote, flexible, project-based work you do on your own schedule. What you'll do

• Evaluate AI-generated answers to advanced technical problems for accuracy and rigor
• Write expert-level problems, solutions, and explanations in your domain
• Verify reasoning, proofs, derivations, and citations
• Create benchmark questions that test models at the frontier of your field

Fields we're recruiting Physics, chemistry, biology, mathematics, statistics, engineering (all disciplines), materials science, earth & environmental science, neuroscience, and adjacent STEM areas.

Requirements

• PhD in a STEM field (required)
• Deep, current expertise in your domain
• Ability to clearly explain your reasoning in writing
• Comfort with technical notation (e.g., LaTeX) where relevant
• Strong written English

What we offer

• $35–$250/hr depending on domain and task complexity
• Fully remote, work whenever you want
• Reliable, on-time payment — no hidden fees, no surprises
• Projects matched to your specific expertise

How to join — please read To be considered, you must create an expert profile on the Pasiflora platform: Sign up here: https://www.pasifloraai.com Applying through this job board alone will not register you. Go to the link above, create your profile, and select your areas of expertise so we can match you to projects. Pay: $55.00 - $250.00 per hour Benefits:

• Flexible schedule

Work Location: Remote