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Principal Applied Scientist
Job in
Redmond, King County, Washington, 98073, USA
Listed on 2026-07-24
Listing for:
Microsoft Corporation
Part Time
position Listed on 2026-07-24
Job specializations:
-
IT/Tech
Data Scientist, Machine Learning/ ML Engineer -
Research/Development
Data Scientist
Job Description & How to Apply Below
* Come build the core of Microsoft Copilot for enterprise with Microsoft Turing Team, where you'll join a collaborative group of applied scientists and engineers pushing the frontier of large language models (LLMs) to improve the productivity of hundreds of millions of users around the world.
Our team is responsible for the core systems that power Microsoft 365 Copilot Chat delivering intelligence, quality, and transformative new features. We work at the intersection of research and engineering-advancing orchestrator reasoning, training next-generation models, and shipping impactful, model-driven experiences in Microsoft 365 Copilot.
As a Principal Applied Scientist - Copilot, you will:
+ Evolve our orchestrator to reason more effectively, respond faster, and support new capabilities in multi-modality, agent-based systems, and beyond
+ Advance the state of the art in model training-including post-training methods such as fine-tuning and reinforcement learning, high-quality data curation, and experimentation with frontier model training
+ Build and deliver model-driven features from concept to production-spanning model development, evaluation, metrics, and A/B testing
This role requires you to be onsite 3 days a week in Microsoft's offices in Redmond, WA.
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.
** 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.
** Qualifications*
* *
* Required Qualifications:
*
* + Bachelor's Degree in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 6+ years related experience (e.g., statistics, predictive analytics, research)
+ OR Master's Degree in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 4+ years related experience (e.g., statistics, predictive analytics, research)
+ OR Doctorate in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 3+ years related experience (e.g., statistics, predictive analytics, research)
+ OR equivalent experience.
** 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:
+ Microsoft Cloud Background Check:
This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.
*
* Preferred Qualifications:
*
* + Master's Degree in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 9+ years related experience (e.g., statistics, predictive analytics, research)
+ OR Doctorate in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 6+ years related experience (e.g., statistics, predictive analytics, research)
+ OR equivalent experience.
+ 5+ years experience creating publications (e.g., patents, libraries, peer-reviewed academic papers).
+ 2+ years experience presenting at conferences or other events in the outside research/industry community as an invited speaker.
+ 5+ years experience conducting research as part of a research program (in academic or industry settings).
+ 3+ years experience developing and…
Position Requirements
5+ Years
work experience
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