
Real job — pulled straight from Cox Exponential’s careers page · Verified October 30, 2026 · No reposts.
Job description
Cox Exponential is hiring a Founding Engineer — a full-time, based in San Francisco, CA role. Apply directly on Cox Exponential's careers page below.
Founding Engineer at HeaviAI
Location: San Francisco
Department: Heavi ai
Location Type: HYBRID
Employment Type: FULL_TIME
About the Role
What you’ll do:
- Work directly with customers to understand problems and ship solutions fast.
- Own entire features end-to-end. UX, design, context engineering, evals, schema.
- Help shape engineering culture, practices, and team norms from day one.
- Collaborate with us on product and business decisions (this isn’t a back-seat role).
- Work with our Head of Parts Intelligence to encode tacit repair knowledge into tokens for the AI.
You’re the right person for the job if you:
- Are sharp, scrappy, and thrive in ambiguity.
- Are excited to immerse yourself in a historically overlooked space (a character building one that you’ll want to talk about at dinner parties).
- Enjoy talking to blue collar folks, and respect the embodied knowledge they have earned.
- Have founded a startup yourself before, or want to in the future.
- Want to work on real-world problems that impact real people, not massive corporations.
- Have experience (or strong interest) with voice AI (Pipecat, Vapi), AI agents (Browserbase, Vercel AI SDK), or multimodal AI reasoning.
- [bonus] You know how an engine works! Or, you want to learn.
The Team
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Frequently asked questions
What skills are required for Founding Engineer at Cox Exponential?
The required skills for Founding Engineer at Cox Exponential include: AI.
What is the seniority level for Founding Engineer at Cox Exponential?
Founding Engineer at Cox Exponential is a Staff / Principal level position.
How do I apply for Founding Engineer at Cox Exponential?
You can view the full description and apply for Founding Engineer at Cox Exponential on EchoJobs: https://echojobs.io/job/cox-exponential-founding-engineer-at-heaviai-7pfde.