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# Machine Learning Engineer, Ads

- **Company:** PRESENT PRESENT
- **Location:** San Francisco, CA, United States
- **Contract:** Permanent contract
- **Skills:** Machine Learning, Performance Tuning, Machine Learning Operations
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25303_62b6d02d42a39f43c19db8d3fed01c3c

## About the Role

This role is for an engineer who knows how ad systems work, including ranking, targeting, conversion prediction and measurement, and who is also hands-on with generative models. A strong candidate has shipped machine learning systems to production at scale and can move between research-style experiments and reliable engineering. Experience adapting foundation models through fine-tuning, preference methods and careful evaluation matters a lot.