Founding ML Engineer

Unsloth is an AI startup focusing on making AI more accessible to the everyday person! Our open-source streamlines the process of finetuning and makes LLMs 2.2x faster and use 62% less VRAM.

Location: San Francisco, CA
Company size: 5–10
Posted: 1mo ago
Via: Yc

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Job listing · Updated 21 AUG 2026

Founding ML Engineer

Unsloth AI· San Francisco, CA, USView company profile

Job title: Founding ML Engineer
Job location: San Francisco, CA, US
Job listing URL: https://www.ycombinator.com/companies/unsloth-ai/jobs/3RB3eaY-founding-ml-engineer
Job description: 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.\ \ **_MUST COMPLETE CHALLENGES BEFORE APPLYING: _**[**_https://x.com/danielhanchen/status/1891194528931209644_**](https://x.com/danielhanchen/status/1891194528931209644) **Must have:** * 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). Can be initially remote, with the ability to work in-person in San Francisco later.

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