OS Performance Engineer - CoreOS Kernel Engineering

Summary

Posted: Mar 21, 2025

Weekly Hours: 40

Role Number:200596350

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.

• 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

• 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.).

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 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.