Microsoft
Principal Applied Scientist- M365 Copilot
$166K–$331K
Redmond, WA +2 · On-site · Principal · Full-time · Posted Oct 12, 2026
- Location
- Redmond, WA
Mountain View, CA
New York, NY - Experience
- 8+ years with a bachelor’s degree, 6+ years with a master’s degree, or 5+ years with a doctorate in a related field; or equivalent experience. Preferred experience includes stated 3+ and 5+ year thresholds.
- Education
- Bachelor's, Master's, or Doctorate in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field; or equivalent experience.
About the job
Designs and develops large language models and supporting systems for Microsoft 365 Copilot product scenarios, guiding research and engineering teams from research direction through implementation and deployment.
What you'll do
- Set research and product direction, apply scientific rigor, and use research and industry trends to inform solutions.
- Collaborate with stakeholders and users, document and share findings, and contribute to ethics and privacy practices.
- Lead system design, implementation, and deployment; guide project planning and mentor team members.
What they ask for
- Bachelor’s degree in a stated or related field plus 8+ years of related experience, or master’s plus 6+ years, or doctorate plus 5+ years, or equivalent experience.
- Ability to meet Microsoft, customer and/or government security screening requirements, including passing the Microsoft Cloud Background Check upon hire/transfer and every two years thereafter.
Nice to have
- 3+ years developing and deploying AI/ML products or systems across the product cycle.
- Experience presenting at external research or industry events, conducting research, creating publications, or developing and deploying GenAI products or systems (with stated 3+ or 5+ year thresholds).
Pay
USD $165,600 - $296,400 per year (base salary); USD $220,800 - $331,200 per year (base salary)
Tools
LLMs, Microsoft Graph, GenAI, AI/ML
AI focus
Develop and tailor LLMs and underlying subsystems for Microsoft 365 Copilot scenarios, including custom LLMs and architectures for product needs.
Model-written summary · the original posting is authoritative