Software Engineer - Systems Performance, CoreOS
- Location
- San Diego, CA · On-site
- Job type
- Full-time
- Level
- Senior
- Education
- Bachelor's degree
- Listed
- 13 days ago
Skills & highlights for this role
- Expertise in at least one layer of software development (embedded, UI, server)
- Data science rigor applied to software decision making
- Unix, Linux, or macOS development
- Problem-solving and critical thinking
- Excellent spoken and written communication
Also useful
- App development on iOS, macOS, watchOS, tvOS, or visionOS
- Operating system fundamentals
- Objective-C or Swift
- Apple SDK technologies (SwiftUI, SwiftData, Swift Concurrency)
Summary
The OS Performance team is looking for a software developer with a keen understanding of app development and systems design to support our efforts building Apple's family of operating systems. Our work enables iOS, macOS, tvOS, and watchOS to perform well, and gives developers the platform they need to easily write great performing apps.
A successful candidate may have experience with a specific layer of software (e.g. embedded, UI, server) but more importantly an interest in learning how the entire stack and flow of information works. The ideal candidate would also not only understand the fundamentals of designing and implementing a performant application for iOS, macOS, tvOS, or watchOS, but also have an appreciation for using data to drive decision making in software development.
About the role
Work on various aspects of Apple’s operating systems to tackle challenging multi-faceted performance problems. You will be solving problems in the areas of usability/UX, cross-platform compatibility, API design, and performance of the operating system. You will also have the opportunity to work directly with app developers on Apple platforms to discover and resolve API gaps. An ideal candidate will be ambitious and grow to understand many layers of software.
Responsibilities
- Analyzing app performance issues and engaging with systems teams to resolve those issues.
- Building tools to better characterize performance issues that apps encounter on Apple platforms.
- Influencing cross-functional teams across Software Engineering to pursue new features that better support apps.
Minimum Qualifications
- Expertise in at least one layer of software development (embedded, UI, server)
- You understand how to apply data science rigor to decision making in software development
- Aptitude to independently learn new technologies, prototype, and propose software design and solutions
- Passion for product quality and attention to detail
- Self-motivated and able to work independently
- Excellent problem-solving and critical thinking
- Prior development in Unix, Linux, or macOS
- Excellent spoken and written communication
- CS degree or equivalent experience
Preferred Qualifications
- App development experience on iOS, macOS, watchOS, tvOS, or visionOS
- Understanding of Operating System fundamentals
- Strong expertise using Objective-C or Swift
Practical knowledge of Apple SDK technologies like SwiftUI, Swift Data, Swift Concurrency, etc.
From Apple's careers page, first listed on Rolev.ai on October 27, 2026. Rolev.ai is not the employer.
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Common questions
Where is the Software Engineer - Systems Performance, CoreOS job at Apple located?
This Software Engineer - Systems Performance, CoreOS position at Apple is located in San Diego, CA (On-site). Always check Apple's application page for specific state eligibility or relocation policies.
What qualifications are required for Software Engineer - Systems Performance, CoreOS at Apple?
For the Software Engineer - Systems Performance, CoreOS role, Apple highlights a bachelor's degree; experience with Expertise in at least one layer of software development (embedded, UI, server), Data science rigor applied to software decision making, Unix, Linux, or macOS development, Problem-solving and critical thinking, Excellent spoken and written communication. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.
How do I apply for the Software Engineer - Systems Performance, CoreOS position at Apple?
This listing links directly to Apple's application page. You can apply directly on Apple's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.