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# Founding RL Engineer

- **Company:** David Joseph & Company
- **Location:** San Francisco, CA, United States
- **Experience:** Experienced
- **Salary:** $125,000.0 - $200,000.0
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Amazon Web Services, Apple IOS, Mobile Application Development, Cursor, TypeScript, Claude Code, Agentic-AI, Build Management, React Native
- **Published:** October 14, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=adf398a895c94e7b

## About the Role

* 3-7 years of engineering experience with strong RL fundamentals
 * Prior experience building RL environments, either at an RL company or at a human data company with hands-on RL exposure (e.g. Surge, Mercor, Scale-type data companies, Proximal, or comparable)
 * Hands-on experience building AI agents in production
 * Strong AI-native tooling fluency, using tools such as Claude Code or Cursor daily as production aids
 * Based in or willing to relocate to San Francisco, working fully in person 5.5 days a week, * Prior experience at a top human data company
 * Full-stack engineering background (TypeScript, AWS)
 * iOS, Swift, or React Native experience for mobile app development
 * Prior startup experience with a demonstrated shipping cadence

## Description

We are looking for a Founding RL Engineer to build high-quality RL environments and AI agents. The role spans two streams: building RL environments from the company's proprietary voice and enterprise datasets, and building and deploying AI agents for enterprise customers.

This is the first hire on the engineering team. You will report to and work directly with both co-founders, and lead the engineering function as the team grows.

What You'll Own

 * Build high-quality RL environments from proprietary voice and enterprise datasets
 * Build and deploy AI agents for enterprise customers
 * Partner with the co-founders on technical direction and roadmap
 * Lead the engineering team as it grows
 * Ship fast while holding a high-quality standard at startup pace