# 2026 Summer AI/ML Engineer Intern at Thirdlayer

- Company: Thirdlayer (YC W25)
- What the company does: Continual learning for enterprise AI. Backed by Y Combinator.
- Company website: https://thirdlayer.inc
- Type: Startups (AI role)
- Level: Internship
- Location: San Francisco, CA, US
- Work setup: On-site
- Posted: 2025-08-28
- Apply by: 2026-10-08
- Apply: https://www.ycombinator.com/companies/thirdlayer/jobs/jgOpS9K-2026-summer-ai-ml-engineer-intern
- Page: https://www.1752.vc/careers/jobs/thirdlayer-2026-summer-ai-ml-engineer-intern/

## About the role

Join us in pushing the boundaries of what's possible with LLMs and browser-native AI. You'll work on cutting-edge problems in agent systems, context handling, and tool use, while collaborating directly with our research team to bring novel approaches to production.

## What they're looking for

- Research or work experience with RL environments, LLMs, modern AI frameworks, and/or ML
- Experience with prompt engineering strategies
- Strong foundation in Python and TypeScript

Tags: Engineering