# Research Engineer (Reinforcement Learning) at LiveKit

- Company: LiveKit
- What the company does: Backed by Index and Redpoint.
- Company website: http://livekit.io/
- Type: Startups
- Level: Mid level
- Location: North America
- Work setup: Remote
- Pay: $135K to $300K base salary per year (USD)
- Posted: 2026-08-18
- Apply by: 2026-10-08
- Apply: https://jobs.ashbyhq.com/livekit/b0c02c3f-790f-4cd8-960d-220800d35367
- Page: https://www.1752.vc/careers/jobs/livekit-research-engineer-reinforcement-learning/

## About the role

We are looking for an exceptional engineer to build post-training at LiveKit. Our agents run over voice and increasingly over text channels like SMS and chat, and the interesting problems show up over long horizons: staying useful across many sessions, working with context that accumulates over time, and using tools reliably in the middle of a live conversation. Build the environments and verifiers our models train against

## What they're looking for

- A strong Python engineer
- Have carried a model from raw data through to production
- Treat data as the product: coverage, diversity, leakage
- Assume a model will exploit a weak reward, and design against it
- Comfortable with GPUs and honest about their limits
- Know when to train, and when not to

Tags: R&D