Microsoft
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Principal Applied Scientist - CoreAI

Location
Redmond | United States, WA
Job type
Full-time
Level
Director
Experience
5+ years
Education
Master's degree
Listed
29 days ago

Skills & highlights for this role

  • large language models
  • transformer models
  • deep learning
  • model fine-tuning
  • distributed systems

Also useful

  • knowledge distillation
  • supervised fine-tuning
  • policy optimization

About the role

In this role you'll develop machine learning techniques that push the boundaries of safety, alignment, and trustworthy AI. You'll collaborate across product, research, and engineering teams to design, build, and maintain responsible AI systems that make an impact at scale—from early-stage development and experimentation to production, monitoring, and continuous iteration.

Bachelor's Degree in Computer Science, Computational Linguistics, or related field AND 6+ years related experience (e.g., statistics, predictive analytics, research) OR Master's Degree in Computer Science, Computational Linguistics or related field AND 4+ years related experience (e.g., statistics, predictive analytics, research) These requirements include but are not limited to the following specialized security screenings: Experience and familiarity with large language models (LLMs).

Experience with and a solid foundation in large distributed systems, algorithms, and software engineering principles. Master's or PhD in Computer Science, Machine Learning, Data Science, or a related field. 5+ years of experience in a research/ML engineering or an applied research scientist position, ideally with a focus on AI safety.

Have hands-on experience with deep learning and transformer-based models Excel at problem-solving and analytics, with a proactive approach to challenges Thrive in fast-moving environments where priorities shift and definitions evolve. Enjoy taking ownership end-to-end and learning whatever is necessary to get results. Comfortable working independently while thriving in cross-team collaborations.

Understand methods for training and fine-tuning LLMs, including distillation, supervised fine-tuning, and policy optimization.

Read the original posting

From Microsoft's careers page, first listed on Rolev.ai on October 11, 2026. Rolev.ai is not the employer.

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Common questions

Where is the Principal Applied Scientist - CoreAI job at Microsoft located?

This Principal Applied Scientist - CoreAI position at Microsoft is located in Redmond | United States, WA. Always check Microsoft's application page for specific state eligibility or relocation policies.

What qualifications are required for Principal Applied Scientist - CoreAI at Microsoft?

For the Principal Applied Scientist - CoreAI role, Microsoft highlights 5+ years of relevant experience; a master's degree; experience with large language models, transformer models, deep learning, model fine-tuning, distributed systems. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Principal Applied Scientist - CoreAI position at Microsoft?

This listing links directly to Microsoft's application page. You can apply directly on Microsoft's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.