Principal Software Engineer - AI Experiences, Copilot Engineering
About The Position
Microsoft’s AI Experiences, Copilot Engineering team builds full-stack AI experiences, including work with data and models, native tools, and quality feedback loops. The team develops consumer-scale services that change how users interact with their PCs, including intelligent prompts, model-facing backends, and native Copilot platform and UX features. As a Principal Software Engineer, you will work at the intersection of distributed systems, AI, and agent-driven development to build systems that can reason, plan, and execute tasks, powering AI-assisted and agentic computing experiences. The role involves developing Copilot products and services for Windows, Mac, and mobile. Employees who live within a 50-mile commute of a designated Microsoft Hub in the U.S. are expected to work from the office at least four days per week; this expectation is subject to local law and may vary by jurisdiction.
Requirements
- Bachelor’s degree in Computer Science or a related technical field and 6+ years of technical engineering experience coding in languages including C, C++, C#, Java, JavaScript, or Python, or equivalent experience.
- Extensive hands-on experience using modern AI coding agents such as Claude Code, Codex, GitHub Copilot, or similar tools.
- Experience serving as a team expert or go-to resource for AI-assisted or agentic development workflows.
- Experience driving adoption of agentic coding tools to improve engineering velocity and code quality.
- Experience defining best practices for prompt design, tool usage, and human-in-the-loop systems.
Nice To Haves
- Master’s degree in Computer Science or a related technical field and 12+ years of technical engineering experience coding in languages including C, C++, C#, Java, JavaScript, or Python, or equivalent experience.
- Bachelor’s degree in Computer Science or a related technical field and 15+ years of technical engineering experience coding in languages including C, C++, C#, Java, JavaScript, or Python, or equivalent experience.
Responsibilities
- Design and develop next-generation products and features for Copilot experiences on Windows, Mac, and mobile.
- Design and develop secure and performant platform services that support Copilot experiences on Windows, Mac, and mobile.
- Collaborate with platform, infrastructure, and application engineers and researchers to build next-generation AI products and services.
- Ship high-quality, well-tested, secure, and maintainable code.
- Overcome obstacles to deliver work quickly and iteratively to users.
- Work in a fast-paced, design-driven product development cycle.
- Embody Microsoft’s culture and values.
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What This Job Offers
Job Type
Full-time
Career Level
Principal
