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Apple

OS Software Engineer, Evaluation

Cupertino, CA$129,300 – $225,300Posted 24 days ago

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For the engineer that obsesses on how software can enable OS developers to evaluate and improve their features, there is no better place than Apple's Experimentation team. The Experimentation team builds an end-to-end platform spanning the OS, data, and server for all the Apple OSes, operating at a scale of 2.5+ billion devices. We are addressing key challenges to accelerate the adoption of AI and an experimentation culture mindset across all Apple products/services. We are seeking engineers that can push the boundaries of low-level operating system technologies while maintaining a customer-centric focus on the developer and user experience.

The mission of Evaluation is to measure, understand, and proactively improve all Apple features. We are looking for an engineer to build and extend the experimentation system for Apple to use across all our operating systems. You will be responsible for the on-device daemon and framework, that is at the heart of the experimentation platform. You will partner with feature teams across Apple to enable them to make a positive impact for the customers. You will ship code that runs on devices you use every day and powers a variety of Apple products. You will obsess over memory, power, performance in addition to the developer experience.

Description

Design and implement new features and APIs for the on-device Experimentation service that is deployed across multiple Apple operating systems

Develop and maintain high-performance libraries that are easy to use by developers

Participate in all phases of software development cycle: from problem definition and design, through implementation, testing, and debugging

Diagnose and resolve issues across different layers of the software stack

Write unit and integration tests for new and existing code

Work with cross-functional teams to enable developer and product features

An appreciation how an OS design impacts end-user experience","responsibilities":"Design and implement new features and APIs for the on-device Experimentation service that is deployed across multiple Apple operating systems

Develop and maintain high-performance libraries that are easy to use by developers

Participate in all phases of software development cycle: from problem definition and design, through implementation, testing, and debugging

Diagnose and resolve issues across different layers of the software stack

Write unit and integration tests for new and existing code

Work with cross-functional teams to enable developer and product features

An appreciation how an OS design impacts end-user experience

Preferred Qualifications

Prior software engineering internship experience in systems software, embedded platforms, or platform engineering.

Exposure to Unix/POSIX APIs, event loops/run loops (libdispatch/GCD, kqueue, epoll), or system daemons/services (launchd, systemd).

Experience in iOS, macOS, or similar operating systems

An appreciation of how a platform design impacts end-user experience

Experience in experimentation or A/B testing and AI

Master's degree in Computer Science, Computer Engineering, or a related technical discipline (or equivalent practical experience).

Minimum Qualifications

Working proficiency in Objective-C, Swift, C/C++, Kotlin, or similar languages

Strong academic foundation in operating systems concepts, including concurrency, multi-threading, synchronization primitives (mutexes, locks, semaphores), inter-process communication (IPC), and memory management.

Hands-on experience developing low-level or systems software through internships, academic capstones, coursework labs, or substantial open-source/personal projects (e.g., building a shell, multi-threaded server, user-space service, or operating system project).

Excellent problem-solving, debugging, and communication skills, with a track record of collaborating effectively in team or group-project settings.

Bachelor's degree in Computer Science, Computer Engineering, or a related technical discipline (or equivalent practical experience).

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 $129,300 and $225,300, 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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