3,951 jobs for "System Performance Engineer"

At Apple, we build products and services that enrich the everyday lives of millions of people around the world. Our Services team is at the forefront of delivering intelligent, delightful experiences powered by Generative AI. We are looking for a senior iOS frameworks engineer to design and build the foundational on-device systems that power features across Apple's services ecosystem - from daemons and frameworks to cloud synchronization and metrics infrastructure.

Description

As a senior member of the Services engineering team, you will own critical on-device framework and daemon components that enable Generative AI experiences across Apple platforms. This role is focused on platform-level engineering ie: building the systems, services, and infrastructure that sit beneath the UI layer and power intelligent features at scale.

","responsibilities":"Designing and implementing frameworks, daemons, and system services that form the backbone of Services experiences on Apple platforms

Building efficient inter-process communication layers using XPC to enable secure, performant data exchange between system components

Architecting and implementing CloudKit-based data synchronization to deliver seamless cross-device experiences

Designing robust interfaces to REST endpoints and backend services, ensuring reliability and graceful degradation

Building and maintaining metrics and telemetry frameworks to measure feature health, performance, and user engagement

Driving architectural decisions across the team, participating in peer review of architecture, API design, and individual software changes

Mentoring and supporting other engineers on the team, raising the bar for engineering quality and technical depth

Preferred Qualifications

Experience with CloudKit or similar distributed data synchronization technologies

Experience designing and delivering libraries, frameworks, or public/internal APIs

Strong debugging skills across the OS stack - frameworks, daemons, and supporting services

Experience optimizing software for performance, energy efficiency, and resource constraints on mobile platforms

Familiarity with metrics and telemetry frameworks, including instrumentation, data collection pipelines, and analytics

Experience with AI/ML principles or developing software that interfaces with large language models

Experience with SQL and database technologies

Track record of mentoring engineers and driving technical direction within a team

Minimum Qualifications

Bachelor's or Master's degree in Computer Science or a related field

6+ years of software engineering experience on client-side or platform-level iOS systems

Strong proficiency in Swift and Objective-C, with experience shipping production-quality frameworks, daemons, or system APIs

Strong systems programming expertise, including concurrency, multithreading, memory management, and performance tuning

Understanding of systems-level concepts such as inter-process communication (XPC), process lifecycle management, and resource constraints

Experience integrating client applications with RESTful APIs and cloud services

Proficiency with development tools such as Xcode, LLDB, Instruments, and Git

Strong communication skills, including the ability to collaborate across a diversity of backgrounds and experiences

Highly organized, maintaining patience and composure to effectively operate within ambiguity

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 $184,700 and $324,800, 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.

About Apple

Working at Apple means doing more than you ever thought possible and having more impact than you ever imagined.

Size: 10,000+ employees
Industry: Technology

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