Core OS Software Engineer - USB4/

Thunderbolt Cupertino, California, United States Software and Services Summary Posted:

Oct 01, 2026

Weekly Hours:

40

Role Number:

200685812-0836 Are you a big-picture thinker who loves setting ambitious goals? Do you have a passion forunderstanding how each line of code affects all the others? In the Core Operating Systemsgroup, you'll ensure the OS is inseparable from each device's identity as a whole. That'sbecause this group is committed to building fully integrated operating systems that combinehardware, software, and apps into a single Apple experience. Your dedication to cross-disciplinary collaboration will help develop groundbreaking technologies, such as iOS, macOS.By crafting these distinct, holistic user experiences, you'll continue to uphold and advance theexcellence people expect from Apple devices!

In Core I/O, we're revolutionizing connectivity by pushing the boundaries of I/O technology todeliver incredibly fast data transfer, seamless device integration, and the magical userexperiences our customers love across Mac, iPad, and beyond. Description Weʼre looking for a motivated engineer with excellent programming, problem solving, andcommunication skills to join our experienced team. As a USB4 and Thunderbolt softwareengineer, you'll be at the forefront of implementing industry standard protocols that powereverything from pro video workflows to everyday file transfers. Join the team responsible forshipping code that runs on nearly every Apple product, and collaborate with brilliant engineersto unlock the potential of the USB4 ecosystem. Responsibilities Develop new, innovative Apple products across a fast-paced roadmap. Influence the definition of Apple Silicon and hardware, implementing new features and supporting product bring-up. Contribute to USB4 and Thunderbolt kernel driver extensions across Appleʼs operating systems. Build breakthrough capabilities like RDMA over Thunderbolt, enabling distributed AI inference across clusters of Thunderbolt-connected Macs. Implement new features and enhancements in software as the specifications evolve over time. Debug, root cause, and develop solutions to enhance the USB4 and Thunderbolt customer experience. Collaborate with vendors to drive improvement of the USB4 and Thunderbolt ecosystems, and to ensure interoperability with Appleʼs solutions. Minimum Qualifications Strong expertise in C and C++ programming languages. Strong understanding of computer science fundamentals, with expertise in operating systems and device driver models. Bachelors degree in Computer Science/Computer Engineering, or equivalent experience/skills. Preferred Qualifications Expertise in Thunderbolt and/or USB4. Expertise in related technologies, e.g. USB, USB-C, USB-PD, DisplayPort, and/or PCI. 2+ years of relevant industry experience in software development. Development experience in IOKit/macOS/iOS, or equivalent OS driver environment. Experience debugging and contributing to complex technology stacks. Experience using logic analyzers, protocol analyzers, or oscilloscopes for data collection and debugging. Self-motivated and able to work independently. 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 $150,400 and $277,600, 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.

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 seek to promote 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. At Apple, we believe accessibility is a fundamental human right. You'll find that idea reflected in everything here — in our culture, our benefits and our digital tools. By welcoming as many perspectives as possible, we help you build a career where you feel like you belong. Apple accepts applications to this posting on an ongoing basis.