The Infrastructure and Developer Platform (IDP) team within Microsoft Security plays a pivotal role in supporting the Defender suite by providing a foundational platform that simplifies service deployment, enhances security, and reduces operational costs. We are looking for a Principal Software Engineering Manager - Developer Platform to join our team! Positioned at the intersection of C#/.NET SDK development and Kubernetes, this role is instrumental in enabling AI-driven development workflows across the Microsoft Threat Protection (MTP) organization. By streamlining infrastructure and developer tools, the IDP team empowers engineers to build and scale services more efficiently and reliably.

The Infrastructure and Developer Platform (IDP) team is a cornerstone of Microsoft’s security strategy, delivering the essential infrastructure that powers the Defender product suite. By offering robust tools and frameworks, IDP enables engineering teams to innovate rapidly while ensuring secure, reliable, and cost-effective service deployment. Leveraging cutting-edge technologies and best practices, the platform supports seamless operations and global protection for millions of users, reinforcing Microsoft’s leadership in cybersecurity.

You’ll help shape and deliver the paved path for secure, observable, and scalable .NET workloads on Kubernetes by:

• Designing SDKs and platform APIs that make secure defaults and best practices the path of least resistance.
• Enabling AI‑assisted developer experiences (code generation, linters, templates, PR automation) that increase velocity and reduce toil.
• Driving adoption through hands‑on dev work plus tech talks, brown bags, and onboarding that scale best practices across Microsoft Security.

Why Join Us:

• Be part of a dynamic and innovative team that is responsible for security components in one of the largest Kubernetes fleets in the world.
• Work on cutting-edge technologies and make a significant impact on the developer community.
• Enjoy a collaborative and inclusive work environment with opportunities for growth and development.

If you are passionate about developer advocacy and have the skills and experience we are looking for, we would love to hear from you. Apply now to join our team and help us build the future of developer platforms!

• Define and drive the roadmap, ensuring alignment with organizational security and compliance requirements.
• Establish and enforce best practices for first party development.
• Partner with Microsoft Security, Compliance, and Platform Engineering teams to align developer toolset with the broader security frameworks (e.g., Microsoft SDL, 1ES)
• Lead the design, implementation, and enforcement of secure-by-default configurations for services and resource.
• Engage with internal and external security communities, contributing to security standards and best practices within Microsoft.
• Lead and mentor a team of security-focused engineers, focused on developer productivity, fostering a culture of innovation, collaboration, and operational excellence.
• Establish team OKRs/KPIs for measuring security improvements and operational effectiveness.

Required qualifications:

Software Engineering M5 - The typical base pay range for this role across the U.S. is USD $139,900 - $274,800 per year. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $188,000 - $304,200 per year.

Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here:
https://careers.microsoft.com/us/en/us-corporate-pay

This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.

Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.