> Markdown version of [/jobs/ext/4634260-principal-machine-learning-engineer-ads-modeling](https://www.wearedevelopers.com/jobs/ext/4634260-principal-machine-learning-engineer-ads-modeling). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Machine Learning Engineer, Ads Modeling - **Company:** UNITY PARTNERS - **Location:** New York, NY, United States - **Salary:** $197,400 - $325,400 - **Contract:** Permanent contract - **Skills:** 3d Models, Big Data, Distributed Computing Environment, Python (Programming Language), Machine Learning, Pytorch, Deep Learning, Data Analytics - **Published:** November 8, 2026 - **Apply:** https://www.juju.com/job/28_25304_ecc3609eae78ebb6824a5c4cce4841a0 ## About the Role * Expertise: Hands-on experience applying state-of-the-art machine learning and deep learning models to complex real-world problems, specifically in the domains of user behavior modeling. Proficiency in Python, Pytorch and deep learning frameworks. * Data & Analytics: Solid understanding of metric design, large-scale data analysis, and distributed computing frameworks. * Strategic Impact: Proven ability to drive projects end-to-end, solving critical cross-team problems and delivering measurable business results. ## Description We are seeking a Principal Machine Learning Engineer to join our Vector Ads Modeling team. In this role, you will work with a high-performing high-impact team to advance ads recommendation algorithms to deliver personalized ads experience., * Identity opportunities and design modeling roadmap that addresses customer needs. * Drive foundational research for new models and paradigms. * Leverage rich user data and large-scale compute to validate models rapidly. * Collaborate closely with engineering and product teams to productionalize research.