4 open roles

Head of Research

Open Posted on Aug 28, 2026

At a glance

Pay
$250k – $500k/yr
Type
Full Time
Location
San Francisco, California
Posted
Aug 28, 2026
Company size
Startup (1-50)
Industry
Technology/Software

About the role

  • ### The role
  • Own the agent research behind 40,000+ autonomous businesses, from experiments to production. Your work decides what 40,000 businesses do next, and it ships to real customers in days, not quarters.
  • ### What you'll do
  • Own evals, agent architectures, and model strategy end to end
  • Run the loop from research experiments to production systems
  • Build the research function: you're its first member and its leader
  • Set the technical direction toward fully self-driving businesses

### Who you are

  • Deep hands-on experience with LLM agents, evals, or applied ML research
  • You measure your work by what ships, not what publishes
  • Comfortable being the entire research org on day one

About Castari

Castari
Technology/Software · Startup (1-50)
4 open roles

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