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Microsoft

# Principal Software Engineer, Foundry Agents - CoreAI

United States, Washington, Redmond, California, Mountain View Senior individual contributor Software Engineering 

Listed on Microsoft’s official careers site. Posted May 6, 2026. Check that it is still open and apply there.
[Apply on Microsoft’s careers site →](https://apply.careers.microsoft.com/careers/job/1970393556863220)

[OpenNash Jobs](https://jobs.opennash.com/) / [Microsoft](https://jobs.opennash.com/companies/microsoft/) / Principal Software Engineer, Foundry Agents - CoreAI

## Job description

Across the organization, you will:
- Build and scale foundational services that power secure agent deployment and execution, governed tool integration, training/fine‑tuning, and observability/evaluation
- Design and evolve distributed runtimes and cloud services to run agents securely at enterprise scale with strong reliability, security, and compliance guarantees
- Improve iteration loops for researchers, engineers, and developers through better tooling, abstractions, and automation across fine‑tuning, evaluation, and optimization Debug and optimize complex interactions across models, data, hardware, and infrastructure
- Drive technical direction across the full software development lifecycle, influencing design tradeoffs and long‑term architecture Champion operational excellence, secure‑by‑design practices, and responsible AI at scale
- Collaborate closely with partner teams across CoreAI and Azure to deliver seamless, production‑ready platforms
- Bachelor's Degree in Computer Science or related technical field and 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Python or equivalent experience.

These requirements include but are not limited to the following specialized security screenings: Master's Degree in Computer Science or related technical field AND 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR Bachelor's Degree in Computer Science or related technical field AND 15+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience.

## At a glance
- Posted by the employer: May 6, 2026
- First seen by OpenNash: Jul 10, 2026
- Last checked: Oct 18, 2026
- Listed for: 165 days
- Location: United States, Washington, Redmond, California, Mountain View[Apply on Microsoft’s careers site →](https://apply.careers.microsoft.com/careers/job/1970393556863220)

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### [Principal Software Engineer - AI Infrastructure](https://jobs.opennash.com/companies/microsoft/jobs/36206e0a402fa0734083/)

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### [Principal Software Engineer, Experimentation Platform - CoreAI](https://jobs.opennash.com/companies/microsoft/jobs/04082cd0c80c731aede0/)

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