# Principal Security Engineer at Microsoft

- Company: Microsoft
- What the company does: Explore Microsoft products and services and support for your home or business. Shop Microsoft 365, Copilot, Teams, Xbox, Windows, Azure, Surface and more. Backed by Menlo.
- Company website: https://www.microsoft.com
- Type: Startups
- Level: Principal and up
- Location: Redmond, WA, US; Mountain View, CA, US; Hillsboro, OR, US; Austin, TX, US; Raleigh, NC, US
- Work setup: On-site
- Posted: 2026-09-28
- Apply by: 2026-11-12
- Apply: https://microsoft.eightfold.ai/careers/job/1970393556924395
- Page: https://www.1752.vc/careers/jobs/microsoft-principal-security-engineer/

## About the role

Designed and developed firmware for Hardware Security Modules (HSMs), security accelerators, and Root of Trust (RoT) solutions. Contributed to all phases of product development, including architecture, design, implementation, integration, and validation for security-focused SoCs. Defined and implemented bootloader and embedded kernel architectures to support secure and reliable system initialization. Developed secure firmware supporting security protocols, key management, attestation, and cryptographic services.

Tags: Software Engineering