Microsoft
Principal Software Engineer - AI Experiences, Copilot Engineering
$143K–$304K
Redmond, WA · On-site · Principal · Full-time · Posted Aug 13, 2026
- Experience
- 6+ years; preferred alternatives: 12+ years with a Master's Degree or 15+ years with a Bachelor's Degree.
- Education
- Bachelor's Degree in Computer Science or related technical field, or equivalent experience.
About the job
Builds Copilot products and platform services across Windows, Mac, and mobile, including agent-driven AI systems that can reason, plan, and execute tasks.
What you'll do
- Design and develop Copilot 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 and 6+ years of technical engineering experience coding in a listed language, or equivalent experience.
- Coding experience in one or more of: C, C++, C#, Java, JavaScript, or Python.
Nice to have
- Master's Degree and 12+ years of technical engineering experience, or Bachelor's Degree and 15+ years, or equivalent experience.
- Extensive hands-on experience with modern AI coding agents and a record of leading agentic development workflows, adoption, and best practices.
Pay
USD $142,800 - $274,800 per year (base pay); USD $188,000 - $304,200 per year (base pay)
Tools
C, C++, C#, Java, JavaScript, Python, Claude Code, Codex
AI focus
Builds AI-assisted and agentic Copilot experiences and systems; preferred work includes using and promoting AI coding agents and defining prompt, tool-use, and human-in-the-loop practices.
Model-written summary · the original posting is authoritative