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Applied Scientist II and Senior Applied Scientist (Multiple Openings) - M365

Microsoft

$100,600 - $258,000
Sep 6, 2025
Redmond, WA, US
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Advancing artificial intelligence, machine learning, and model optimization in the context of Microsoft 365's core services to power intelligent features across the M365 ecosystem.

Requirements

  • 1+ years of experience training/fine tuning AI/ML models, preferably LLMs/SLMs (small language model).
  • 1+ years' experience with productization or shipping ML and/or AI components at internet scale.
  • 1+ year(s) experience creating publications such as patents or peer-reviewed academic papers
  • 4+ years of experience with end-to-end in a challenging technical problem domain (plan, design, execution, continuous release, and service operation).
  • 2+ years of experience building Generative AI pipelines, e.g. with RAG (Retrieval augmented generation).

Responsibilities

  • Conduct research and development to push the boundaries of model training, evaluation, and quality assessment for AI solutions.
  • Post-train LLMs for enterprise scenarios M365 Copilot and on tenant data to enable task-specific agents and solutions within the enterprise ecosystem
  • Collaborate with engineers and researchers to advance deep learning, natural language processing (NLP), multimodal models, and model optimization techniques.
  • Measure, analyze, and report on model performance, quality, and impact using predictive analytics and statistical methodologies.
  • Contribute to a culture of inclusion, respect, integrity, and accountability while fostering innovation and growth across teams.

Other

  • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role.
  • Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.
  • Contribute to a culture of inclusion, respect, integrity, and accountability while fostering innovation and growth across teams.