Cloud Infrastructure Engineer - GPU Seattle,Washington,United States Software and Services 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 fields 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 innovative 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 innovative compute hardware: - Design, implement, and optimize GPU Compute and high-performance networking solutions, ensuring seamless integration and high throughput in virtualized environments - Work extensively with KVM, QEMU, and Linux kernel modifications to enable GPU functionality within virtual machines, including GPU passthrough and SR-IOV configurations - Evaluate and tune performance of low-latency, high-throughput GPU Direct / RoCE interconnects - Collaborate with multi-functional teams to understand and optimize for critical workloads - Tackle and resolve complex issues across GPU, 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 **Minimum Qualifications** + At least 5+ years and Bachelor’s Degree in Computer Science, or equivalent related experience. + 5+ years of experience in virtualization, specifically with KVM and QEMU. + Strong Linux development background, including kernel-level development and tuning for high-performance GPU and networking workloads. + Expertise in GPU development, including driver integration, configuration, and debugging, as well as hands-on experience with hypervisor GPU passthrough and SR-IOV. + Proficiency in high-speed networking, particularly RDMA (e.g., InfiniBand, RoCE), and network performance optimization in virtualized settings. + Proven programming skills in system programming languages (C/C++) and scripting languages (Python, Bash). **Key Qualifications** **Preferred Qualifications** + Familiarity with CUDA libraries and GPU compute frameworks. + Experience with CloudStack or similar cloud orchestration platforms. + Knowledge of advanced virtualization concepts, including nested virtualization, VM live migration, and NUMA optimization. + Familiarity with Docker, Kubernetes, and containerization technologies. + Experience with distributed GPU workloads and optimizing GPU network performance in multi-node environments. **Education & Experience** **Additional Requirements** **Pay & Benefits** + At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $135,400 and $250,600, and your base pay will depend on your skills, qualifications, experience, and location.Apple employees also have the opportunity to become an Apple shareholder through participation in Apple’s discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple’s Employee Stock Purchase Plan. You’ll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses — including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation.Learn more (https://www.apple.com/careers/us/benefits.html) about Apple Benefits.Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program. + Apple is an equal opportunity employer that is committed to inclusion and diversity. We take affirmative action to ensure equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics.Learn more about your EEO rights as an applicant. (https://www.eeoc.gov/sites/default/files/2023-06/22-088\_EEOC\_KnowYourRights6.12ScreenRdr.pdf) **Apple Footer** Apple is an equal opportunity employer that is committed to inclusion and diversity. We take affirmative action to ensure equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant (Opens in a new window) . Apple will not discriminate or retaliate against applicants who inquire about, disclose, or discuss their compensation or that of other applicants. United States Department of Labor. Learn more (Opens in a new window) . Apple will consider for employment all qualified applicants with criminal histories in a manner consistent with applicable law. If you’re applying for a position in San Francisco, review the San Francisco Fair Chance Ordinance guidelines (opens in a new window) applicable in your area. Apple participates in the E-Verify program in certain locations as required by law. Learn more about the E-Verify program (Opens in a new window) . 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