OS Performance Engineer – CoreOS Kernel Engineering Cupertino,California,United States Software and Services The CoreDarwin team within Apple's CoreOS organization is looking for an exceptional OS performance engineer to push the boundary of performance on Apple Silicon platforms - from iOS to macOS, visionOS and beyond. If you have a passion for low-level programming, performance optimization, and working at the intersection of software and hardware, this is your opportunity to have a major impact on end-user experience across Apple’s products! **Description** As part of the Kernel Engineering team, you will work on the core layers of the operating systems. In this role you will analyze and optimize the OS performance on upcoming platforms for responsiveness and efficiency. Drive innovative kernel design enhancements that improve scheduling, memory, and power efficiency. Collaborate with hardware architects and chip design teams to drive optimizations for Apple Silicon, and influence next generation CPU, GPU and memory subsystems. Engage across with multiple teams, from hardware engineering to compiler, application and frameworks team, to drive world-class end-to-end system performance. **Minimum Qualifications** + Bachelor's degree in Computer Science or equivalent professional experience + Proficiency in C programming language + Strong understanding of OS fundamentals + Ability to collaborate across teams to drive development and performance optimizations **Key Qualifications** **Preferred Qualifications** + Experience with kernel development and low-level performance analysis. + Knowledge of modern CPU and memory architectures + Expertise with profiling tools and analysis (Instruments, VTune, etc.). **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 $121,900 and $214,500, 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 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) . Apple is committed to working with and providing reasonable accommodation to applicants with physical and mental disabilities. Reasonable Accommodation and Drug Free Workplace policy Learn more (Opens in a new window) . Apple is a drug-free workplace. Reasonable Accommodation and Drug Free Workplace policy 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. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.