We are the Apple Services Engineering (ASE) Security Red Team. We lead and execute complex Red Team engagements, simulating real-world attacker scenarios to uncover vulnerabilities across critical ASE services and infrastructure. We are growing our team and looking a Senior Staff Security Engineer to lead offensive security assessments that strengthen our defense capabilities. In this role, you will work closely with the security engineering, InfoSec, privacy, SRE, detection and design review teams to keep Apple's services secure for our users. You will identify security weaknesses, validate detection mechanisms, and provide actionable recommendations to enhance our security posture. You will collaborate with various architecture and engineering teams to continuously validate and improve our security controls and detection capabilities, with a strong focus on developing repeatable testing frameworks and metrics-driven security improvements. If you love diving into complex and important systems, and driving the security of that system over time, we want to talk to you!