Microsoft
Principal Software Engineer - AI Experiences, Copilot Engineering
$143K–$331K
United States +2 · On-site · Principal · Full-time · Posted Sep 30, 2026
- Location
- United States
Mountain View, CA
Redmond, WA - Experience
- 6+ years required; preferred alternatives are 12+ years with a master's degree or 15+ years with a bachelor's degree, or equivalent experience.
- Education
- Bachelor's Degree in Computer Science or related technical field, or equivalent experience.
About the job
Build Copilot products and platform services across Windows, Mac, and mobile, combining distributed systems and AI to deliver agentic computing experiences.
What you'll do
- Design and develop Copilot products, features, and secure, performant platform services.
- Collaborate with platform, infrastructure, application engineers, and researchers to build AI products and services.
- Ship high-quality, tested, secure, maintainable code and deliver iteratively.
What they ask for
- Bachelor's Degree in Computer Science or related technical field, or equivalent experience.
- 6+ years technical engineering experience coding in one or more listed languages: C, C++, C#, Java, JavaScript, or Python.
Nice to have
- Master's degree plus 12+ years’ experience, or bachelor's degree plus 15+ years’ experience, or equivalent experience.
- Extensive hands-on experience with modern AI coding agents and a track record of guiding agentic development, adoption, and best practices.
Pay
USD $142,800 - $274,800 per year (base salary); USD $188,000 - $304,200 per year (base salary); USD $165,600 - $296,400 per year (base salary); USD $220,800 - $331,200 per year (base salary)
Tools
C, C++, C#, Java, JavaScript, Python, Claude Code, Codex
AI focus
Develop AI-powered Copilot experiences and agentic systems that reason, plan, and execute tasks; use and promote AI coding agents and agentic development workflows.
Model-written summary · the original posting is authoritative