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# Systems Software Engineer, Core OS

- **Company:** Apple Inc.
- **Location:** San Diego, CA, United States
- **Salary:** $142,300.0
- **Contract:** Permanent contract
- **Skills:** Apple Watch, Bluetooth, Command-Line Interface, Computer Programming, Computer Engineering, Daemon Tools, Middleware, Ethernet, Firmware, Software Engineering, System Programming, USB, Information Technology, Objective C++, Programming Languages
- **Published:** August 9, 2026
- **Apply:** https://www.jobmonkeyjobs.com/career/27918285/Systems-Software-Engineer-Core-Os-California-San-Diego-7413

## About the Role

Join the Core Platform & Systems Technology team and help build the code that drives our operating systems on iPhone, iPad, Apple Watch, and Mac. You'll deliver a unified solution used across the entire company - daemons, frameworks, certification test suites, command line tools, and even bits of UI. Your code will run on every device we ship. This role offers a rare view into true cross-functional engineering, where your work touches nearly every part of the system., Programming experience in C

Knowledge of OS fundamentals

Experience designing and developing production-level software

Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, or equivalent experience

Preferred Qualifications

Programming experience in Objective-C or Swift

Analytical thinking skills

Ability to work independently

Spoken and written communication skills

## Description

As a Systems Software Engineer on this team, you'll contribute to Apple's firmware update solutions, working primarily on middleware - frameworks and daemons that keep devices current and reliable. The programming languages we use on this team are C, Objective-C, and Swift, with C being the primary language. A working knowledge of low-level programming and the kernel is a plus, as is familiarity with I/O protocols - USB, Bluetooth, Ethernet, and Inductive - since these are how accessories connect to our devices.

Responsibilities

Develop new features and drive incremental improvements to existing systems

Maintain and evolve the existing code base

Triage and resolve incoming issues


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