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Senior Software Engineer - Microsoft AI, Copilot

United States, Redmond, WA 119800.00 - 234700.00 USD / Year · Job Posted January 29, 2026
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Job Description

As Microsoft continues to redefine the future of AI, we are seeking passionate engineers to tackle some of the most complex and impactful challenges of our time. Our vision is bold — to build intelligent systems that deeply understand users and adapt across agents, applications, services, and infrastructure. This role focuses on building distributed systems and APIs that power adaptive, context-aware experiences across Microsoft AI. We aim to make Copilot feel like your Copilot — responsive to your preferences, workflows, and goals — while preserving privacy, security, performance, and scale. We are looking for a Senior Software Engineer to lead the design and development of distributed data infrastructure, APIs and personalization pipelines that drive Copilot’s intelligence. You will work across Microsoft AI and Copilot teams. You will possess a methodical approach to problem-solving, proficiency in backend technologies, a familiarity with applied AI and its unique challenges, and the ability to architect solutions that stand the test of time. The right candidate is hands-on and enjoys building world-class consumer experiences and products in a fast-paced environment. A key skill is the judgment to make the right risk vs velocity and value decisions.

Job Responsibility

  • Architect scalable, low-latency systems/data pipelines for ingesting, processing, and serving personalized signals
  • Design, build, and maintain robust pipelines for telemetry, product usage, and experimentation data
  • Design data models and APIs that enable Copilot to reason about user context, preferences, and history
  • Build real-time and batch personalization engines that adapt Copilot’s behavior
  • Collaborate with privacy, security, and responsible AI teams to ensure personalization is safe, transparent, and user-controlled
  • Optimize for performance, reliability, and cost across diverse workloads and geographies
  • Ship high-quality, well-tested, secure, and maintainable code
  • Find a path to get things done despite roadblocks to get your work into the hands of users quickly and iteratively
  • Enjoy working in a fast-paced, design-driven, product development cycle
  • Embody our Culture and Values

Requirements

  • Bachelor’s degree in computer science, or related technical discipline AND 4+ years technical engineering experience building systems with coding in languages including, but not limited to, Python, C#, C++, Golang, Rust, Java
  • OR equivalent experience
  • 4+ years' experience building scalable services, including securing applications and infrastructure on top of cloud infrastructure like Azure, AWS, or GCP
  • Experience with large scale data systems
  • Experience working with AI platforms, frameworks, and APIs
  • Ability to identify, analyze, and resolve complex technical issues, ensuring optimal performance, scalability, and user experience
  • Demonstrated interpersonal skills and ability to work closely with cross-functional teams, including product managers, designers, and other engineers
  • Passion for learning new technologies and staying up to date with industry trends, best practices, and emerging technologies in web, data systems and AI
  • Ability to work in a fast-paced environment, manage multiple priorities, and adapt to changing requirements and deadlines
  • Proven ability to collaborate and contribute to a positive, inclusive work environment, fostering knowledge sharing and growth within the team

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