Software Engineer, Full Stack (Agentic AI)

The phone call is still the main way people reach the businesses they depend on, and the experience has barely changed in decades. We are building what replaces it. Few conventions exist for this kind of product, so much of the work involves deciding how something should behave before anyone has built it.

We are hiring engineers to take on that work across the entire system. Depending on your strengths, you may work on the core agent: how it reasons, when it speaks and when it waits, how it handles interruptions, and how new models from our research team reach live calls. You may work on the tools customers use to shape, test, and understand agents whose behavior is never fully deterministic. Many of our engineers do both.

Current efforts include self-improving agents, which review their own conversations, diagnose what went wrong, and verify fixes before releasing them. Projects of that scope come up regularly, and engineers here help define them as well as build them.

We care about delight at every layer of the product, from the interface to the API to the way a call sounds to the person on the other end. The team is small and moves quickly, and you will have real ownership from your first week.

Our stack

TypeScript end to end, with React, Node, PostgreSQL, Temporal, and Kubernetes on AWS. Our speech and language models run on our own GPU infrastructure.

What we look for

• Experience building with LLMs in production, and with real-time or latency-sensitive systems.
• Strong fundamentals and the range to work anywhere in the stack, whether your background leans toward product and interfaces or toward backend systems.
• A record of taking ambiguous problems from idea to production with little direction.
• High standards for the quality and feel of what you ship.
• Daily use of AI coding tools.
• Strong opinions, loosely held, and low ego. You argue for your position, change your mind when the evidence points elsewhere, and put the right outcome for the team ahead of being right.