# Founding Engineer

**Company:** [Prox](https://hotfix.jobs/companies/prox)
**Location:** San Francisco, CA
**Role:** ML Engineering
**Salary:** $200k – $200k/yr
**Experience:** 0+ years
**Skills:** Knowledge Graphs, Multimodal Ai, Voice Ai, Sip Trunking, Telephony, Audio Processing, Code Generation, LLMs, Graph Theory, AI Agents
**Posted:** 2026-04-12

> Founding Engineer builds knowledge engines, multimodal agents, voice AI, and codegen systems for complex physical product support. Owns end-to-end customer deployments in fast-paced startup environment.

## Job Description

## What You'll Work On

### Knowledge Engine
- Build the core engine that stores, relates, and reasons over product knowledge: manuals, compatibility matrices, installation guides, field observations, tribal knowledge.
- Deep infrastructure that the rest of the company builds on top of.

### Emotionally Intelligent Voice AI
- Build phone support where a customer calls in, describes their problem, and gets walked through a solution by an AI that understands tone, frustration, urgency, expression.
- SIP trunking, telephony infrastructure, audio processing.

### Code Generation as a Primitive
- When something is too cognitively hard to explain in words, generate real-time diagrams, interactive schematics, visual walkthroughs through code.
- Leverage code generation tools and understanding of how people process information.

### Owning Customers
- Own customer contracts end-to-end: demo to deployment to onboarding to ongoing.
- Talk to public companies, huge private companies, and lead pilots yourself.

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**Apply:** https://hotfix.jobs/jobs/a79621b4-0bd1-4939-9440-ac2f569ff8f6
**Canonical:** https://hotfix.jobs/jobs/a79621b4-0bd1-4939-9440-ac2f569ff8f6