Apple

OS Performance Engineer (AI Feature Performance)

Apple$145K — $175K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Computer Science, Electrical Engineering, Statistics, Mathematics, or related field, or equivalent experience
  • Proficiency in programming languages like Python, R, SQL, C/C++, Objective-C, Swift
  • Knowledge of modern AI/LLM systems and operating system fundamentals
  • Ability to analyze raw data and derive actionable insights
  • Excellent problem-solving and critical-thinking skills
  • Strong communication abilities, capable of conveying complex technical concepts
  • Proven collaborative skills with diverse teams and stakeholders

Responsibilities

  • Optimize AI feature performance across platforms
  • Collaborate with feature and hardware teams on development
  • Write code for optimizations and automation testing
  • Develop analysis pipelines and simulation tools
  • Ensure seamless and efficient AI feature deployment
  • Provide quantitative insights to guide decision-making

Benefits

  • Access to cutting-edge AI technology and tools
  • Opportunities for professional development and advancement
  • Collaborative work environment within a leading tech company
  • Engagement with a variety of teams on innovative projects
  • Contribution to high-impact AI features that enhance user experience
Full Job Description
Description

In this role, you'll serve as a performance optimizer and advisor with a focus on AI feature usage on our platforms, working with everyone from feature teams architecting new capabilities to hardware teams planning next-generation devices. Your goal will be to ensure Apple ships smooth, snappy, and efficient AI features and the best possible customer experience for the system as a whole. You'll write code for feature optimizations and testing automation, as well as analysis pipelines and simulation tools that enable teams to make informed decisions based on quantitative insights.

Minimum Qualifications

Bachelor's degree in Computer Science, Electrical Engineering, Statistics, Mathematics, or related quantitative field, or equivalent professional experience

Proficiency in programming languages for OS systems development, data analysis, and/or modeling (e.g., Python, R, SQL, C/C++ Objective-C, Swift)

Working knowledge of modern AI/LLM systems, AI/LLM model architecture, and operating system fundamentals (e.g., memory management, scheduling, file systems, storage)

Demonstrated ability to transform raw data into actionable insights through analysis, modeling, and visualization

Excellent problem-solving and critical-thinking skills

Strong written and verbal communication skills, with ability to explain technical concept to diverse audiences

Proven ability to collaborate effectively across teams and build relationships with diverse stakeholders

Preferred Qualifications

M.S. or Ph.D. in Computer Science, Electrical Engineering, Applied Mathematics, Statistics, or related quantitative field

Experience shipping high-performance modern LLM-based AI features

Experience with performance modeling, capacity planning, or computer architecture evaluation

Knowledge of modern CPU and memory architectures, and hardware/software interactions

Experience with performance analysis tools and methodologies (e.g.,profiling, tracing, instrumentation) Experience driving cross-functional projects and influencing decisions across diverse stakeholder groups

Track record of connecting quantitative insights to strategic product or business decisions

Prior experience in Unix, Linux, macOS, or iOS development or performance optimization

About Apple

Apple is a corporation that designs, manufactures, and markets mobile communication and media devices, personal computers, portable digital music players, and sells a variety of related software, services, peripherals, networking solutions, and third-party digital content and applications. Apple provides many products and services, including iPhone; iPad; iPod; Mac; Apple TV; a portfolio of consumer and professional software applications; the iOS and OS X operating systems; iCloud; and accessories, service, and support offerings. It sells its products worldwide through its retail stores, online stores, direct sales force and third-party cellular network carriers, wholesalers, retailers, and value-added resellers to the consumer and also sells third-party iPhone, iPad, Mac and iPod compatible products, including application software and accessories through its online and retail stores. Introduced in 1984, the Macintosh was the first widely sold personal computer with a graphical user interface (GUI). That feature and others such as an improved floppy drive design and a low-cost hard drive that made data retrieval faster helped Apple cultivate a reputation for innovation. Apple was named as the most admired company in the United States in 2008 and in the world from 2008 to 2012 by the Fortune magazine. The company was founded by Steven Paul Jobs, Steve Wozniak, and Ronald Gerald Wayne on April 1, 1976, and is headquartered in Cupertino, California.

Apple Careers

Join Apple, a place where extraordinary people gather to do their best work. Our ever-expanding global team is at the forefront of innovation and leadership in the tech industry. At Apple, we're not just building products—we're crafting the kind of wonder that revolutionizes entire industries. It's the diversity of our people and their ideas that inspires the innovation that runs through everything we do, from amazing technology to industry-leading environmental efforts. Work You’ll Do Embark on a journey with Apple’s market-leading team to help some of the world’s most influential companies navigate their path to digital mastery with cutting-edge technology and services. Transform industries and touch lives with your unique ideas at Apple. Here, you’ll lead through a unique position at the intersection of technology, creativity, and robust industry expertise. Collaborate with a global team of professionals who are at the top of their game in technology and design. Apple isn’t just a company, it’s a community of innovators and passionate thinkers. Introducing the Apple Innovation and Leadership Initiative We are building a market-leading team to drive our efforts in delivering groundbreaking solutions and services. At Apple, job opportunities are abundant, offering you the chance to explore diverse roles from engineering to marketing, all designed to empower your career growth. Do Innovative Work Join the largest group of creative and technical experts in the world—professionals dedicated to redefining what’s possible through technology and innovation. Deliver targeted solutions through a depth and breadth of expertise that’s unmatched, driving forward our commitment to excellence and leadership in every project we undertake. Be Part of a Great Team Engage in a wide range of projects utilizing Apple’s technology and resources. Harness the unparalleled capabilities, global scale, and joint solution development that only Apple can offer. Future-Proof Your Career Advance your career with limitless opportunities at Apple. Go as far as your ambition takes you with unmatched training, development, and certification support. Explore Discover how Apple is leading the way in tech innovation: [With iOS] Businesses can streamline operations and enhance customer interactions... READ MORE Smart home technology integration that sets the standard for convenience and security... READ MORE The Apple Experience Our combined service capabilities, global scale, and joint solution development help clients overcome challenges and lead transformation in their industries. Clients worldwide look to Apple for new strategies and solutions that drive growth and innovation in the digital era. Stay Connected Join Our Team Search open positions that match your skills and interests. We look for passionate, curious, creative, and solution-driven team players. Whether you’re seeking a professional role, an internship, or a leadership position, Apple offers a variety of employment opportunities. SEARCH APPLE JOBS Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. READ CAREERS BLOG Job Alert Emails Personalize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. See what exciting and rewarding opportunities await at Apple, a company committed to diversity, innovation, and leadership. Explore job opportunities, employment benefits, and the culture of growth and innovation at Apple. Prepare your resume, hone your interview skills, and ready yourself for a career at one of the most prestigious companies in the world. Join us in pushing the boundaries of what is possible.
Learn more about Apple
Size
154,000 employees
Market Cap
$2,074.3 billion
Industry
Net Income
$63.9 billion
Founded
1976
5 Year Trend
+11.5%
Revenue
$294.1 billion
NASDAQ

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