Senior Security Software Engineer - iCloud Security Infrastructure

Job Summary

Summary Posted: Apr 30, 2026 Role Number: 20... At Apple, privacy and security aren't features - they're foundational principles. As a Senior Security Software Engineer on our iCloud Security team within Apple Services Engineering (ASE), you'll be part of a small, elite group of engineers building and protecting the infrastructure that hundreds of millions of people trust with their most personal data every single day. If you have a passion for systems-level security software and want your work to matter at a scale very few engineers ever experience, we'd love to talk.

Description

Description This isn't security work on the margins. You'll be working deep in the stack - interfacing directly with low-level Linux kernel primitives, designing security architecture that operates at global scale, and making critical technical decisions that shape how iCloud protects its users worldwide. You'll be part of a highly skilled team within Apple Services Engineering that provides foundational security infrastructure underpinning consumer-facing iCloud applications and services. The performance and correctness of the systems we build are paramount. We work directly with low-level Linux kernel interfaces, leveraging asynchronous I/O and multithreaded architecture to build high-throughput, low-latency secure services. In this role, you will not only execute on technical deliverables but serve as a key contributor to the architectural and strategic decisions that define the team's direction.