Analytical Chemist for AI Model Training (Part-Time)

Mercor; Miami (FL); On-site; USD 96,000 - 152,000; Part time

Job summary

Cincinnatus LLC is seeking a Chemistry SME to join a leading AI lab's research team and help build foundational AI models for chemistry. The role is part-time through Cincinnatus, with the potential placement at a top AI lab.

You will guide experiments, design multi-step synthesis tasks, evaluate AI outputs, and help ensure data quality and chemical validity. A PhD in chemistry and 3+ years of hands-on experience are required; familiarity with SMILES/SMARTS is a plus.

Qualifications

• PhD in chemistry or equivalent research experience.
• 3+ years hands-on chemistry experience in pharma, biotech, chemical or materials sectors or academia.
• Experience in small-molecule synthesis and multi-step route design.
• Experience with analytical techniques: NMR, MS, IR, HPLC/LC-MS.
• Familiarity with cheminformatics representations (SMILES/SMARTS) preferred.
• Ability to commit at least 20 hours per week.
• Strong written communication and ability to explain complex decisions clearly.
• Nice-to-have: grading rubrics, benchmarks, or AI model evaluation experience.

Responsibilities

• Guide research and engineering teams to close knowledge gaps and improve AI model performance in synthetic chemistry.
• Design challenging, non-searchable chemistry tasks, benchmarks and training data with solutions.
• Evaluate AI model outputs and reasoning, diagnosing errors and providing clear feedback.
• Develop specifications, grading rubrics and verification processes for chemistry data.
• Advise on experimental design and chemical validity of model outputs, including SMILES representations.
• Collaborate with other subject matter experts to ensure data accuracy.

Skills

Chemistry expertise

Hands-on synthesis

Technical writing

Written communication

Time management

Education

PhD in Chemistry

Equivalent research experience

Tools

NMR spectroscopy

Mass spectrometry

IR spectroscopy

HPLC/LC-MS

Cheminformatics tools (SMILES/SMARTS)

Job description

Cincinnatus LLC is seeking a Chemistry SME to join a leading AI lab's research team and help build foundational AI models for chemistry. The role is part-time through Cincinnatus, with the potential placement at a top AI lab.

You will guide experiments, design multi-step synthesis tasks, evaluate AI outputs, and help ensure data quality and chemical validity. A PhD in chemistry and 3+ years of hands-on experience are required; familiarity with SMILES/SMARTS is a plus.