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# OS Software Engineer, Evaluation

- **Company:** Apple Inc.
- **Location:** Cupertino, CA, United States
- **Salary:** $129,300.0 - $225,300.0
- **Contract:** Internship / Graduate position
- **Skills:** A/B Testing, Application Programming Interfaces (APIs), Artificial Intelligence, Unix, C++ (Programming Language), Computer Engineering, Software Debugging, Memory Management, Inter-Process Communication, Open Source Technology, Posix, Software Engineering, User Environment Management, Multithreading, Concurrency, Swift (Programming Language), Kotlin, Integration Tests, Information Technology, Objective C++
- **Published:** October 14, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=6a80d82ee17abca8

## About the Role

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).

## 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