Software Security Architect, Operating Systems | Consumer Devices

Skills

About the Role

You will define the operating system's security architecture, trust boundaries, and privilege model, working with hardware security architects and OS, silicon, firmware, privacy, and product teams. You'll design platform defenses, establish isolation and access controls, set guardrails for AI agents, lead threat modeling, and prototype and review security-critical code.

Requirements

• Deep experience designing or securing operating systems, kernels, embedded platforms, hypervisors, or other privileged systems software
• Understanding of OS internals including memory protection, process isolation, executable loading, device drivers, and privilege boundaries
• Experience building security architectures spanning hardware, firmware, operating systems, applications, and cloud services

Responsibilities

• Define the OS security architecture, trust boundaries, privilege model, and protections for sensitive user data
• Integrate roots of trust, secure elements, trusted execution environments, and processor security capabilities into the OS
• Design platform defenses including secure boot, code signing, attestation, secure updates, key protection, and device recovery
• Establish isolation and access controls across kernel, applications, system services, and AI workloads
• Define guardrails for how AI applications and agents access information, use sensors and tools, and act on a user's behalf
• Lead threat modeling and architecture reviews
• Prototype solutions and review security-critical systems code

Benefits

• Equity
• Performance-related bonus
• Medical, dental, and vision insurance with HSA employer contributions
• Health FSA, Dependent Care FSA, and commuter pre-tax accounts
• 401(k) with employer match
• Paid parental leave up to 24 weeks for birth parents and 20 weeks for non-birthing parents
• Paid medical and caregiver leave up to 8 weeks
• Flexible PTO for exempt employees
• 13+ paid company holidays and company office closures
• Paid sick or safe time
• Mental health and wellness support
• Employer-paid basic life and disability coverage
• Annual learning and development stipend
• Daily meals in offices and meal delivery credits
• Relocation support for eligible employees
• Charitable donation matching and wellness stipends