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Kernel Engineer, CoreOS

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: Apple
Full Time position
Listed on 2026-02-28
Job specializations:
  • Software Development
    Software Engineer, Embedded Software Engineer
Job Description & How to Apply Below
Location: Greater London

Summary

Are you a big-picture thinker who loves setting ambitious goals? Do you have a passion for understanding how each line of code affects all the others? In the Core Operating Systems group, you’ll ensure the OS is inseparable from each device’s identity as a whole. That’s because this group is committed to building fully integrated operating systems that combine hardware, software, and apps into a single Apple experience.

Your dedication to cross-disciplinary collaboration will help develop groundbreaking technologies, such as iOS, macOS, watch

OS, and tvOS. By crafting these distinct, holistic user experiences, you’ll continue to uphold and advance the excellence people expect from Apple devices. The Darwin Kernel Technologies team within Apple’s CoreOS organization is responsible for delivery of a high-quality and performant kernel into just about every one of Apple’s products. Our software runs on your wrist as part of watch

OS; in your pocket with iOS; on your desk in macOS; in your living room with tvOS; on the devices owned by your friends and family; and hundreds of millions of devices beyond those. Darwin Kernel Technologies team focuses on key kernel areas such as IPC, process management and security which are key to delivering great performance and user privacy across all Apple devices.

This position requires a solid understanding of operating systems fundamentals, including kernel design and implementation. We deal in all of the traditional kernel subsystems, e.g. virtual memory, scheduling, IPC, etc, and also serve as expert system sleuths up and down the entire Apple stack. Our company is one of the last vertically integrated systems shops remaining, and as such our engineers have the unique opportunity to roam the system freely, from iOS silicon design all the way up to Apps and the cloud.

Description

Work with a highly skilled engineering team in the design, implementation and support of numerous kernel technologies. The role includes interacting with cross-functional teams across Apple to bring state‑of‑the‑art kernel and security enhancements to Apple’s products. Engineers also use various debugging tools and techniques to identify system issues and improve quality.

Minimum Qualifications
  • Proven experience working on low level systems or devices
  • Solid understanding of Operating System implementation fundamentals
  • Proficient with C
  • Basic computer architecture
Preferred Qualifications
  • BS/MS in Computer Science or equivalent knowledge and experience
  • iOS or macOS exposure
  • Familiarity with software security principles
  • Proficiency with ARM assembly language

At Apple, we’re not all the same. And that’s our greatest strength. We draw on the differences in who we are, what we’ve experienced and how we think. Because to create products that serve everyone, we believe in including everyone. Therefore, we are committed to treating all applicants fairly and equally. As a registered Disability Confident employer, we will work with applicants to make any reasonable accommodations.

Apple will consider for employment all qualified applicants with criminal backgrounds in a manner consistent with applicable law. Learn more

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