OS Performance Tools Engineer - UI Hitch Diagnostics **San Diego, California, United States** **Software and Services** **Summary** Posted: **Oct 03, 2025** Weekly Hours: **40** Role Number: **200624363-3543** The OS Performance Tools team is looking for a passionate and driven engineer to lead the development of hitch diagnostics and tooling to help Apple deliver the fluid, responsive user experiences our users deserve. This role focuses solving complex technical and logistical challenges with building low-overhead collection mechanisms as well as effective analysis tools for hitch diagnostics on Apple’s platforms. You will be working on challenging technical problems at the intersection of systems performance and user experience, collaborating extensively with teams across Apple that are involved in rendering content to the screen. This is an opportunity to have a significant impact on the smoothness of each interaction our customers have with their devices. **Description** In this role, you will own the technical vision and development of tools used for detection, diagnostics generation, and analysis of UI hitches in animations, scrolling, and other interactions across Apple's platforms. You will work at the center of a highly collaborative environment, engaging with experts across Apple — from graphics and display teams to performance analysis groups — to understand the complexity of Apple’s display rendering architecture and translate that knowledge into impactful performance diagnostics tooling. This position requires both technical depth and collaborative leadership. A successful candidate will have a strong conceptual understanding of how computer systems work, from low-level hardware interactions to high-level user interface rendering. You will be responsible for choosing meaningful features that deliver real impact, balancing technical excellence with practical utility for the teams that depend on your tools. **Minimum Qualifications** + Excellent problem-solving and critical thinking skills + Proficiency in Objective-C and Swift + Strong OS & systems fundamentals + Experience with graphics programming and frame rendering pipelines + Excellent spoken and written communication skills + Aptitude to independently learn new technologies, prototype, and propose software design solutions + Passion for product quality and attention to detail **Preferred Qualifications** + Prior development experience in Unix, Linux, macOS, or iOS + Proven ability to work cross-functionally and collaborate with diverse technical teams + Ability to prioritize competing requirements and focus on high-impact features **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 $120,300 and $210,100, 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 about Apple Benefits. (https://www.apple.com/careers/us/benefits.html) 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.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 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.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 will not discriminate or retaliate against applicants who inquire about, disclose, or discuss their compensation. Apple participates in the E-Verify program in certain locations as required by law.Learn more about the E-Verify program (https://www.apple.com/jobs/pdf/EverifyPosterEnglish.pdf) . 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 . Apple is a drug-free workplace. Reasonable Accommodation and Drug Free Workplace policy Learn more . 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 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.