Cloud Infrastructure Engineer - Systems

People at Apple don't just build products - they craft the kind of experience that has revolutionized entire industries. The diverse collection of our people and their ideas inspire innovation in everything we do. Imagine what you could do here! Join Apple, and help us leave the world better than we found it.

The Apple Service Engineering (ASE) team builds and provides systems and infrastructure that power Apple's services (such as iCloud, iTunes, Siri, and Maps). Apple's uniquely seamless hardware, software and services integration means that you will get to work with world-class engineers from a variety of disciplines to design and deliver products that our customers love. Our services have to scale globally, stay highly available, and "just work." If you love designing, engineering, and running systems that will help millions of customers, then this is the place for you!

Apple Service Engineering (ASE)'s Compute team is seeking an experienced software engineer to build and enhance internal cloud infrastructure offerings. You will be responsible for core components of this cutting edge platform, integrating the latest cloud hardware technologies with Apple's own hardware and software. In this role, you will collaborate with teams across Apple to deliver forward-looking high-performance virtualized infrastructure, supporting everything from LLM model training to maximum-security confidential computing environments. You will partner with internal application teams to understand their requirements, co-design operating system features and datacenter infrastructure to meet your needs, and look ahead at emerging technologies to incorporate them into our services.

Description

In this role you will be responsible for developing, debugging and maintaining an in-house virtualized infrastructure platform, and evaluating and integrating cutting edge compute hardware:

Design, implement, and optimize virtualized compute offerings on a wide variety of hardware types

Integrate and optimize high-performance virtual networking solutions for custom hardware, including Open vSwitch, DPDK, GPU Direct, and RoCE RDMA technologies

Work with KVM, QEMU, and Linux kernel to efficiently enable functionality within virtual machines, including GPU passthrough and SR-IOV configurations

Collaborate with cross-functional teams to integrate their technologies and optimize for critical workloads

Tackle and resolve complex issues across accelerator, virtualization, and networking layers, ensuring robust performance, stability, and security

Research and prototype new hardware and datacenter architectures to stay at the forefront of the industry

Preferred Qualifications

Expertise in core virtualization technologies such as KVM, Qemu, cloud-hypervisor

Experience with advanced virtualization and performance optimization features like SR-IOV, IOMMU, DPDK

Familiarity with GPU development, including driver integration, configuration, and debugging, as well as hands-on experience with hypervisor GPU passthrough and SR-IOV

Experience with cloud compute orchestration platforms such as CloudStack, OpenStack, or Mesos

Experience operating platforms leveraging containerization technologies like Docker, Kubernetes

Minimum Qualifications

At least 2+ years and Bachelor's Degree in Computer Science, or equivalent related experience

Exceptional problem solving skills and core software development fundamentals

Strong systems experience and OS development background, particularly Linux or Darwin

Knowledge of advanced virtualization concepts, including nested virtualization, VM live migration, and NUMA optimization

Proven distributed systems and operating systems knowledge and experience applying it to build stable, performant, and secure execution environments

Demonstrated ability to learn new technologies and apply them appropriately to platforms