Microsoft AI

Principal Software Engineer - Data, Personalization

Microsoft AI
onsite senior full-time USD $163,000 – $296,400 per year Redmond
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First indexed 6 Mar 2026

Description

Summary

Microsoft AI are looking for a talented Principal Software Engineer to lead the design and development of distributed data infrastructure, APIs and personalization pipelines that drive Copilot's intelligence.

About the Role

As a Principal Software Engineer, you will work across Microsoft AI and Copilot teams to build scalable, low-latency systems for ingesting, processing, and serving personalized signals. You will design data models and APIs that enable Copilot to reason about user context, preferences, and history. You will build real-time and batch personalization engines that adapt Copilot's behavior. You will collaborate with privacy, security, and responsible AI teams to ensure personalization is safe, transparent, and user-controlled. You will optimize for performance, reliability, and cost across diverse workloads and geographies. You will ship high-quality, well-tested, secure, and maintainable code. You will find a path to get things done despite roadblocks to get your work into the hands of users quickly and iteratively. You will enjoy working in a fast-paced, design-driven, product development cycle. You will embody our Culture and Values.

Accountabilities

  • Architect scalable, low-latency systems for ingesting, processing, and serving personalized signals.
  • Design data models and APIs that enable Copilot to reason about user context, preferences, and history.

The Candidate we're looking for

Experience:

  • 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python.

Technical skills:

  • Proficiency in backend technologies.
  • Familiarity with applied AI and its unique challenges.

Personal attributes:

  • Methodical approach to problem-solving.
  • Ability to identify, analyze, and resolve complex technical issues.
  • Demonstrated interpersonal skills and ability to work closely with cross-functional teams.

Benefits

  • Competitive salary.
  • Benefits and other compensation.
This listing is enriched and indexed by YubHub. To apply, use the employer's original posting: https://microsoft.ai/job/principal-software-engineer-data-personalization-microsoft-ai-2/