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Software Engineer, Agent Architecture

Sierra

Salary not specified
Nov 14, 2025
San Francisco, CA, US
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Sierra is creating a platform to help businesses build better, more human customer experiences with AI. The company is focused on developing AI agents that are steerable, verifiable, conversational, and empathetic, while also grounding answers in customer knowledge bases and measuring agent quality.

Requirements

  • 4+ years hands-on experience building production products and systems.
  • Experience and comfort to build and ship full-stack solutions.
  • Experience building AI-powered products.
  • Experience with Go and Typescript.
  • Experience building developer tooling, programming languages, or databases.

Responsibilities

  • What primitives do we need to build agents that are steerable and verifiable, but also conversational and empathetic?
  • How do we future-proof this as LLMs evolve?
  • How do we ground answers in a customer’s knowledge base?
  • How do we use retrieved context conversationally, handling cases where the answer is unclear or needs clarification from the user?
  • How do we measure an agent’s quality?
  • How do empower our customers to improve agent quality?

Other

  • A passion for being on the frontier of AI products.
  • Motivation and high-agency to drive outcomes - we have a high-autonomy culture and each team member has lots of agency to overcome obstacles and achieve customer impact.
  • Alignment to our company values throughout your work, notably finding a balance between Craftsmanship, Customer Obsession, and Competitive Intensity.
  • Degree in Computer Science or related field, or equivalent professional experience.
  • A sharp eye for design.