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Principal Applied Scientist (Multiple Openings)

Microsoft

$139,900 - $331,200
Sep 23, 2025
Remote, US
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Microsoft 365 Copilot is a groundbreaking productivity tool that leverages the power of large language models, the Microsoft Graph, and the web to drive unparalleled creativity and transform productivity in the enterprise. As a Principal Applied Scientist you will design and develop LLMs (Large Language Model) and underlying subsystems to tailor to various product scenarios.

Requirements

  • 3+ years’ experience developing and deploying AI/ML products or systems at multiple points in the product cycle from ideation to shipping.
  • 3+ years experience developing and deploying GenAI products or systems at multiple points in the product cycle from ideation to shipping.
  • 5+ years experience conducting research as part of a research program (in academic or industry settings).
  • 5+ years experience creating publications (e.g., patents, libraries, peer-reviewed academic papers).
  • 3+ years experience presenting at conferences or other events in the outside research/industry community as an invited speaker.

Responsibilities

  • design and develop LLMs (Large Language Model) and underlying subsystems to tailor to various product scenarios
  • alignments with senior stakeholders
  • working together to building models
  • coming up, with ways to build custom LLMs and architecture for specific product needs (especially GenAI)
  • ensure scientific rigor, support the development of methods, and apply your expertise to support business impact
  • Design system architecture that meets security, compliance, and scalability requirements
  • Lead implementation and deployment of solutions, ensuring they meet quality standards

Other

  • 3 days / week in-office
  • Travel 0-25%
  • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role.
  • This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.
  • You will master a broad area or research and understand any applicable research techniques. You’ll also serve as a team expert on changes in industry trends, products, and other advances, and apply this knowledge to influence product needs.