# Product Engineer

**Company:** [Harper](https://hotfix.jobs/companies/harper)
**Location:** San Francisco, CA
**Role:** Fullstack Engineering
**Salary:** $140k – $280k/yr
**Skills:** Python, TypeScript, llm applications, agent pipelines, frontend, backend, RAG, voice ai, Real-Time Systems
**Posted:** 2026-07-24

> Build and ship AI-powered product features end-to-end across the full stack. Embed with sales, service, and underwriting teams to identify problems, rapidly prototype and deploy solutions using the latest AI tools and models, own business metrics, and drive measurable impact.

## Job Description

## What You'll Do
- Ship AI-powered features end-to-end — Frontend, backend, agents, and evals; you own the whole thing, not a slice
- Embed with operators — Sit with sales, service, and underwriting; find what's broken before they tell you
- Build systems that compound — Every decision gets traced; every outcome feeds back; the AI gets smarter with each interaction
- Stay on the frontier — New model drops? You're testing it that day. New capability lands? You're the one who ships it
- Move fast with AI tooling — Cursor, Claude Code, and whatever comes next; manage multiple coding sessions to compress weeks into days
- Own the metric, not the feature — "We increased conversion by 15%," not "we shipped the thing"
- Prove impact — Set up metrics, track results, present what worked to the company

## Requirements
- Software engineering experience shipping production systems (level determined during interviews)
- Proficiency in Python, TypeScript, or similar
- Experience building and shipping AI-powered features—LLM applications, agent pipelines, or workflow automation
- Ability to work across the stack: frontend, backend, and the AI layer
- Based in San Francisco or willing to relocate

## Nice to Have
- Voice AI or real-time systems experience
- RAG, agent frameworks, or evaluation systems
- Background in operations tooling, sales tech, or workflow automation
- Prior startup experience

## Compensation & Logistics
Salary: $140,000–$280,000 depending on experience + performance bonuses & equity
Location: San Francisco, in-office. Based in SF or willing to relocate.
Schedule: Monday–Friday, very early morning start, in-office five days a week.
Benefits: Uber commuter benefits; breakfast, lunch, and dinner provided; snacks, drinks, and coffee daily; free gym membership; health, dental, and vision insurance.

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**Canonical:** https://hotfix.jobs/jobs/0d7ed53c-730e-4590-8e0a-41279a4c587e