Microsoft
Principal Software Engineer
$143K–$304K
Redmond, WA · On-site · Principal · Full-time · Posted Oct 29, 2026
- Experience
- 6+ years technical engineering experience; preferred alternatives: 8+ years with a Master's Degree, or 12+ 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 and lead LLM-powered engineering agents that turn authorized work into tested, reviewable code changes, while ensuring secure, reliable workflows and measurable engineering outcomes.
What you'll do
- Build agents and orchestration for repository-aware implementation, testing, code review, and remediation.
- Develop evaluations, regression tests, and secure, observable execution with appropriate human approval and review.
- Set technical direction, deliver across teams, and mentor engineers through hands-on design, coding, and debugging.
What they ask for
- Bachelor's Degree in Computer Science or related technical field and 6+ years technical engineering experience coding in listed languages, or equivalent experience.
- Ability to meet Microsoft, customer and/or government security screening requirements, including the Microsoft Cloud Background Check upon hire/transfer and every two years thereafter.
Nice to have
- Hands-on experience delivering LLM-powered applications or agents using tools and multi-step workflows.
- Experience in distributed systems or cloud services, agent evaluation, cross-team technical leadership, or developer tooling and AI-powered engineering workflows.
Pay
USD $142,800 - $274,800 per year (base salary); USD $188,000 - $304,200 per year (base salary)
Tools
C, C++, C#, Java, JavaScript, Python, Microsoft Copilot, Azure AI
AI focus
Build LLM-powered agents and agentic workflows for engineering tasks; evaluate and improve agent behavior, reliability, security, and measurable outcomes.
Model-written summary · the original posting is authoritative