Microsoft
Principal Software Engineer, Foundry Agents - CoreAI
$143K–$331K
Redmond, WA +1 · On-site · Principal · Full-time · Posted May 6, 2026
- Location
- Redmond, WA
Mountain View, CA - Experience
- 6+ years; preferred alternatives: 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; equivalent experience accepted. Preferred: Master's Degree or Bachelor's Degree with the stated experience alternatives.
About the job
Builds and evolves cloud-native platforms and distributed systems for deploying, running, training, evaluating, and observing enterprise AI agents.
What you'll do
- Build and scale secure agent services, runtimes, and governed tool integrations.
- Improve fine-tuning, evaluation, and optimization workflows; debug and optimize interactions across models, data, hardware, and infrastructure.
- Set technical direction, promote operational excellence and responsible AI, and mentor and collaborate across teams.
What they ask for
- Bachelor's Degree in Computer Science or related technical field, or equivalent experience.
- 6+ years technical engineering experience with coding in one or more listed languages.
- Ability to meet Microsoft, customer and/or government security screening requirements, including the Microsoft Cloud Background Check.
Nice to have
- Master's Degree in Computer Science or related technical field and 12+ years of technical engineering experience; or Bachelor's Degree and 15+ years; or equivalent experience.
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, Azure
AI focus
Builds agent platforms and infrastructure, including secure deployment, governed tool integration, fine-tuning and training, observability, evaluation, and optimization.
Model-written summary · the original posting is authoritative