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Role description

Antibody Engineering

Chai Discovery logoChai Discovery
AI-native
TypeFull-time
WorkplaceOn-site
LocationSan Francisco, CA
Posted2/15/2026
Research

About Chai Discovery

Chai Discovery builds the computer-aided design suite for molecules. Eli Lilly, GSK, Pfizer, Bristol Myers Squibb, argenx and Novartis all use Chai to power drug discovery programs. AI is reinventing life sciences the same way it reinvented software engineering, and our team is building that future.

We train frontier models that learn the underlying foundations of biochemical structure and interaction. We pair this with a computational workspace to iterate on molecules from idea to medicine, helping scientists move faster and develop medicines beyond the reach of existing methods.

We value diverse perspectives and are ready to find greatness in unexpected places.

About the role

We are looking for exceptional antibody engineers and computational protein designers to help us evaluate, expand and apply the capabilities of our de novo antibody design models. You'll join an elite team of biologists, computational scientists and AI researchers.

Scientists at Chai are power users and test pilots of our AI platform. We probe the design space for novel targets and formats, validate in silico solutions for function in the lab, and distill empirical rules from the results. We execute experimental programs at scale that guide, train and evaluate next generation models, working closely with our AI research team. We partner with scientists from the world's leading pharma companies to push their discovery programs into new territory. I think you could be a good fit.

This is an opportunity to push the boundaries of applied biology and artificial intelligence. You'll get exposed to a wide array of scientific problems and research methods, far beyond what one encounters working on a single drug program or within a traditional life sciences company.

About you

You have a deep desire to push the limits of what’s possible in therapeutic design, and a restless drive to solve real-world problems and iterate quickly. You are curious, high-agency and incredibly persistent.

  • PhD or equivalent experience in the field—Antibody Engineering, Computational Biology, Protein Sciences.

  • Hands-on experience with design and characterization of antibody-based biologics. Proficient in molecular-biology workflows, binding and developability assays, inspecting structures in PyMOL or similar tools.

  • Track record of strong communication, collaboration and execution.

We offer

The opportunity to work at the vanguard of AI research and frontier biology, with world-class people, on a mission that matters. We protect and promote a culture of high velocity and ownership. We compensate our team accordingly.

Relevant archetypes

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Company info

Chai Discovery logo

Chai Discovery

Building frontier artificial intelligence to predict and reprogram the interactions between biochemical molecules.

Private companySeries CMega roundIn the newsAI-product
HQSan Francisco, United States
Size11-50 employees
Unlock human wisdom
ThesisTermsPrivacy
Industry
Technology, Information and Internet
Funding
  • Series C · $400M · Jul 14, 2026
Investors
Index VenturesKleiner PerkinsSequoia CapitalAmazon Web ServicesDimension
Tech stacknodejs, kubernetes, egress, microsoft-typescript, workspace, python, ashby, tensorflow, cuda, triton
News
  • Chai Discovery, Roche to Collaborate on AI Drug Discovery
  • Roche taps Chai Discovery's AI models for drug discovery programs
  • Chai Discovery partners with Roche to apply AI drug design across its pipeline
  • Chai's AI dealmaking streak rolls on with Roche drug discovery pact
  • Roche Partners with Chai Discovery to Deploy Chai-3 Across Global Therapeutic Pipelines

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