Apple
Security Software Engineer, OS Security, SEAR
$129K–$225K
Cupertino, California · Full-time · Posted Jun 8, 2026
- Education
- BS in Computer Science or equivalent experience/skills in systems programming and security.
About the job
Designs and deploys operating-system security mechanisms and APIs that isolate software and enforce access policies across iOS and macOS.
What you'll do
- Design and implement isolation, compartmentalization, and mandatory-access mechanisms for iOS and macOS.
- Develop policy languages and engines, and build usable security APIs for developers.
- Analyze software across the stack and collaborate with teams to deliver and adopt practical security protections.
What they ask for
- BS in Computer Science or equivalent experience/skills in systems programming and security.
- Strong C and low-level systems programming skills.
- Understanding of operating-system internals and ability to navigate kernel, userland, framework, and application code.
- Familiarity with security exploits and mitigation techniques; ability to manage priorities and deliver on tight schedules.
Nice to have
- Exposure to iOS and macOS; involvement in open-source communities such as FreeBSD and Linux.
- Kernel or hypervisor programming experience, or experience designing and implementing security policy languages.
Pay
$129,300–$225,300 USD base salary
Tools
C, macOS, iOS, BSD, Linux, FreeBSD
Model-written summary · the original posting is authoritative