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# Principal Security Engineer

- **Company:** Microsoft
- **Location:** Mountain View, CA, United States
- **Experience:** Expert
- **Salary:** $165,600.0 - $296,400.0
- **Contract:** Permanent contract
- **Skills:** C (Programming Language), Java (Programming Language), JavaScript (Programming Language), Artificial Intelligence, Microsoft Online Services, C Sharp (Programming Language), C++ (Programming Language), Software Debugging, Firmware, Hardware Design, Hardware Interface Design, Python (Programming Language), Software Engineering, Information Technology, Automation Anywhere
- **Published:** August 4, 2026
- **Apply:** https://diversityjobs.com/main/sendform/8/8/28176/1/17819949?backUrl=%2Fcareer%2F17819949%2FPrincipal-Security-Engineer-California-Mountain-View

## About the Role

* Bachelor's Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience.

Other Requirements:

 * Abilityto meet Microsoft,customerand/or government security screening requirements arerequiredfor this role. These requirements include but are not limited to the following specialized security screenings: Microsoft Cloud Background Check: This position will berequiredto pass the Microsoft Cloud Background Check upon hire/transfer and every two years thereafter., * 10+ years of professional experience designing secure solutions.
 * Familiar with server and AI architectures.
 * Ability to debug and resolve issues spanning multiple subsystems
 * Proven and demonstrable skill in C, C++, Rust, cryptanalysis
 * Experienced with AI workflows, Confidential Computing
 * Problem solving, debugging and troubleshooting skills, advanced design and development skills

Software Engineering IC6 - The typical base pay range for this role across the U.S. is USD $165,600 - $296,400 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 $220,800 - $331,200 per year.

## Description

* Lead security initiatives across the full AI-driven hardware development lifecycle, from secure silicon and firmware design to manufacturing, supply chain security, and large-scale cloud deployment.
 * Collaborate with security threat modeling teams to define and implement silicon and firmware security architectures.
 * Design and develop secure low-level firmware and hardware interfaces.
 * Write and maintain secure, defensive code with a emphasis on secure firmware development.
 * Develop and implement firmware security features, including hardware root of trust technologies.
 * Apply cryptanalysis knowledge to evaluate and strengthen security mechanisms.
 * Ensure secure software and firmware development practices throughout the product lifecycle.
 * Contribute to the design and implementation of Confidential Computing technologies.
 * Demonstrate expertise in memory subsystems, side-channel attack mitigation, memory protection, scheduling, interrupts, and multithreading/threading concepts.


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