Principal Software Engineer

Principal Software Engineer

We are part of the Windows Servicing and Delivery (WSD) organization in the Experiences + Devices (E+D) division. Our mission is to keep customers protected and productive by delivering a seamless and timely servicing experience across supported and future versions of Windows.

The Customer Focused Engineering (CFE) team within WSD is seeking highly motivated Principal Software Engineers to support this mission. In this role, you will work on Networking components, focusing on maintaining, securing, and improving existing platform capabilities.

You will play a key role in:

• Provide technical leadership and guidance to development teams, ensuring best practices and high standards of software quality.
• Evaluate and recommend new technologies, tools, and processes to improve the efficiency and effectiveness of the team.
• Investigating and fixing security vulnerabilities across networking stacks.
• Addressing non-security bugs and servicing issues that impact customer environments.
• Reproducing and resolving customer-reported incidents (ICMs) in collaboration with support and product teams.
• Driving engineering quality and compliance through rigorous debugging and validation.
• Ensuring reliable, regression-free fixes across diverse hardware, protocol stacks, and deployment scenarios.

This role is ideal for engineers who enjoy deep system-level debugging, protocol correctness, and delivering impact at scale by keeping the Windows ecosystem secure and reliable for millions of users.

Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.