Founding Engineer

Chasi AI•San Francisco, CA

34d•Onsite

About The Position

Chasi is building the future of equipment commerce. We help dealers and rental companies sell faster, respond to customers around the clock, and keep machines in the field instead of sitting in a shop or a yard. This is one of the biggest opportunities to bring real-world AI to an industry that software has barely touched. We're based in San Francisco, backed by YCombinator and other top investors, and already working with CAT, John Deere, Bobcat, and other top OEM dealers.

Requirements

2+ years building production software, ideally full-stack TypeScript/React with real backend depth
You've worked with LLMs beyond the tutorial stage: prompt engineering, tool use, embeddings, retrieval-augmented generation
Comfortable in real-time systems: WebSockets, streaming, audio pipelines, or telephony infrastructure
Strong opinions on architecture, loosely held. You make tradeoffs fast because you've shipped enough to know what matters
You thrive in ambiguity. You talk to customers, identify what to build, and ship it
Ownership mentality — this is a founding role with founding-level equity and founding-level responsibility

Responsibilities

Ship production features across the entire platform: voice agents, workflow automation, memory architecture, and the customer-facing UI
Design and build the real-time voice pipeline: response delivery in sub-second latency
Evolve our memory system: vector stores that make every agent conversation contextually intelligent
Build integrations that enterprises actually need: Salesforce, HubSpot, and custom CRM connectors
Architect multi-tenant infrastructure that scales from 10 to 10,000 organizations
Make direct technical decisions: model selection, infrastructure tradeoffs, build vs. buy, etc