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# Founding Machine Learning Engineer (ML Research Engineer)

- **Company:** OAK RECRUITING & CONSULTING LLC
- **Location:** San Francisco, CA, United States
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Machine Learning, Large Language Models
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25303_61783ced9670c815aa1582513bedcc62

## About the Role

Willow cares much more about technical depth, product intuition, and speed than credentials or years of experience.

## Description

Willow is looking for a Founding ML Research Engineer to build its personalization layer.

This role is for someone who believes the hardest unsolved problem in AI products is not raw model capability, but context and user modeling. Foundation models are getting better every month. The open question is how to build an AI system that understands a specific user in the flow of their work.

You will work on the systems that turn Willow from "great dictation" into a personalized communication and intent layer. Today, a user can say something rough like: "Tell my boss I'll come in at 6." Willow should understand the screen, the relationship, the app, the user's tone, their past edits, their communication style, and produce the message the user would have written if they had taken the time to write it well.