Cheiron

Full Stack Engineer (Los Altos)

Cheiron
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5 months ago
Los Altos, CA, USAMid Level

Responsibilities

  • Design and build backend services using Python, FastAPI, and Postgres.
  • Build applied AI workflows with the OpenAI API, LangGraph, vector databases, and search systems.
  • Develop ingestion, indexing, and search pipelines for academic, clinical, regulatory, safety, and patent data.
  • Build customer-facing features end to end across data models, APIs, and React/TypeScript frontend systems.
  • Create systems that ground AI-generated outputs in source data with traceable and verifiable citations.
  • Work with founders, domain experts, and early customers while owning outcomes in an ambiguous, fast-moving environment.

Requirements

  • At least 2 years of experience shipping production software end to end.
  • Strong backend engineering fundamentals and experience designing APIs, databases, and services.
  • Hands-on production experience with LLMs, agents, retrieval-augmented generation, and vector databases.
  • Full-stack experience with React and TypeScript.
  • Ability to set priorities and ship quickly when specifications are incomplete.
  • Active use of AI coding tools such as Claude Code and Cursor.
  • Preferred experience operating LangGraph, agent frameworks, or RAG systems in production.
  • Preferred experience with semantic search, knowledge graphs, enterprise SaaS, pharma, biotechnology, healthcare products, life sciences data, or seed-stage startups.

Benefits

  • 401(k) retirement plan.
  • Medical, dental, and vision insurance.
  • Lunch and dinner meal allowance.
  • Transportation support for early starts and late nights.
  • In-office snack bar plus commuting and work travel support.
Cheiron

About Cheiron

11-50 employees
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