Microsoft Ads powers one of the world’s largest digital advertising ecosystems, delivering billions of recommendations every day. We are seeking a Principal Applied Scientist who is passionate about advancing both frontier research and real-world product impact across our ad retrieval, matching, ranking, and generation systems.
In this role, you will drive innovation at the intersection of science and product, developing novel machine learning and AI approaches while ensuring they translate into measurable improvements for customers and the business. You will leverage and advance LLMs, SLMs, LRMs, and other state-of-the-art technologies to solve challenging problems at web scale. Your work will directly influence how ads are discovered, matched, ranked, and generated, improving user experience, advertiser ROI, and the efficiency of the Microsoft Ads platform.
We are looking for a scientist who values both deep research and practical execution. You are excited by scientific exploration, but equally motivated by shipping solutions, measuring impact, and iterating based on real-world outcomes. You thrive in collaborative, cross-functional environments and enjoy turning cutting-edge ideas into production systems that serve billions of requests.
Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees, we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day, we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.
Required/Minimum Qualifications:
Other Requirements: Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include but are not limited to the following specialized security screenings:
Preferred Qualifications:
This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.
Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.
Source: Microsoft careers — Read the original posting and apply
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