Founding AI Researcher – Chemistry & Synthesis

CGS; San Francisco (CA); On-site; USD 180,000 - 260,000; Full time

Job summary

CGS in San Francisco is hiring an AI Researcher to help build the founding AI team focused on chemistry applications. You will lead large-scale model training, create training and post-training pipelines, and develop reinforcement learning systems that leverage real laboratory outcomes.

This hands-on role requires collaborating with chemists and product engineers to translate AI research into deployable models for synthesis planning.

Qualifications

• 5+ years of relevant experience, including doctoral research.
• Hands-on distributed training experience using frameworks like FSDP, DeepSpeed or Megatron.
• Strong Python skills and experience with PyTorch or JAX.

Responsibilities

• Lead large-scale model training and post-training experiments.
• Develop training pipelines including pretraining, fine-tuning and distillation.
• Build reinforcement learning systems that learn from experimental feedback.
• Collaborate with chemists and product engineers to connect AI research with chemistry workflows.

Skills

Distributed training

Python programming

PyTorch or JAX

Reinforcement learning

Experimentation discipline

Education

PhD or doctoral research

Tools

FSDP

DeepSpeed

Megatron

Job description

CGS in San Francisco is hiring an AI Researcher to help build the founding AI team focused on chemistry applications. You will lead large-scale model training, create training and post-training pipelines, and develop reinforcement learning systems that leverage real laboratory outcomes.

This hands-on role requires collaborating with chemists and product engineers to translate AI research into deployable models for synthesis planning.