# Founding ML Engineer at Unsloth AI

- Company: Unsloth AI (YC S24)
- What the company does: Open-Source Reinforcement Learning (RL) & Fine-tuning for LLMs. Backed by Y Combinator.
- Company website: https://unsloth.ai/
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco, CA, US
- Work setup: On-site
- Pay: $200K to $500K base salary per year (USD)
- Posted: 2025-02-15
- Apply by: 2026-10-08
- Apply: https://www.ycombinator.com/companies/unsloth-ai/jobs/3RB3eaY-founding-ml-engineer
- Page: https://www.1752.vc/careers/jobs/unsloth-ai-founding-ml-engineer/

## About the role

We’re looking for someone who loves open-source and collaborating with the OSS community but also has deep understanding in how transformers and Unsloth works.

## What they're looking for

- Deep knowledge and implementation experience with multi-GPU training techniques such as FSDP
- Important contributions to ML open-source projects (e.g., transformers, TRL, kernels, Unsloth) with reviewable code
- Heavy experience working with ML frameworks like Unsloth, Transformers, TRL, and PyTorch
- Familiarity with inference engines such as vLLM
- Familiarity with low-level languages and kernels like Triton
- Understanding of cloud services such as GCP or AWS (bonus)

Tags: Engineering