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Software Engineer, AI Platform

ChaidiscoverySan Francisco office🇺🇸United StatesPosted Oct 12, 2026

Why This Role Stands Out

You can make a significant impact by building the AI platform that empowers scientists to accelerate drug discovery, working in a hybrid environment that offers flexibility. This role is perfect for a mid-senior Software Engineer passionate about AI and its transformative potential in life sciences, eager to collaborate with leading researchers and contribute to groundbreaking advancements. Apply now to join a forward-thinking company at the forefront of AI-driven innovation.

Quick Overview

Seniority
Mid Senior
Employment type
Full Time
Work mode
Hybrid
Location
San Francisco office, United States
Posted
Yesterday

Job Description

About Chai Discovery

Chai Discovery builds the computer-aided design suite for molecules. Eli Lilly, GSK, Pfizer, Bristol Meyers, 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

Build the AI platform that lets scientists direct research programs with agents. We believe that as Chai's models get more powerful, scientists will focus more on fundamental problems and biological hypotheses, and delegate more of the subtasks to answer them to agents. Making this possible requires inventing the abstractions through which people, agents, and Chai’s models collaborate.

  • Work with scientists and model researchers to define how agents use Chai’s foundation models to design molecules and guide experiments.

  • Build products that shorten the cycle from idea ➝ to experiment ➝ to the next decision, while scientists monitor and direct the work.

  • Build the core abstractions for agent execution, model inference, and scientific tools so new capabilities come together fluidly across the workspace.

About you

We look for technical depth, strong software architecture, and product judgment, with experience building complex applications or agent systems. You can find clear abstractions in a messy domain and build systems that hold up as their scope grows. We value a practical understanding of where agents fail and how to tell whether they’re doing useful work.

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 & promote a culture of high velocity and ownership. We compensate our team accordingly.