Staff Software Engineer 

Flip builds AI voice agents that handle millions of real customer conversations for some of the biggest brands, healthcare providers, and transportation companies in the world. We’re serving an orchestrated system of agents answering millions of contacts daily and now also expanding into other modalities like chat. The work breaks into three lanes: Vertical engineering — building the agents themselves: complex multi-step customer workflows and deep integrations into the contact center and the industries we serve — order systems, healthcare workflows, logistics. Platform engineering — the orchestration layer every agent runs on: routing, state, tool use, and the primitives that let vertical teams ship fast without reinventing the engine. Inference & DevOps — we host our own models; low-latency serving at production scale is a core competency here, not a vendor line item. Plus the telephony, observability, and deployment infrastructure that keeps millions of live calls healthy.

Responsibilities

Building the agents themselves: complex multi-step customer workflows and deep integrations into the contact center and industries; Building the orchestration layer every agent runs on: routing, state, tool use, and primitives; Hosting own models and low-latency serving at production scale; Managing telephony, observability, and deployment infrastructure; Sitting face-to-face with customers and going deep on complex backend systems; Expanding into chat modalities

Requirements

Real production experience; Judgment that survives contact with production; Low ego, high execution; Customer obsession

Benefits

Comprehensive healthcare; unlimited vacation; mandatory half week off over July 4; full week off at end of year; eligible for equity