The Mac Compositing, Performance, and Interaction team is focused on making the Mac the most flexible, responsive, and powerful platform in the world. We specialize in reducing frame drops, power consumption and interaction latency, while enabling other Apple frameworks and HI to create new ways for Mac users to interact with their systems.
Our team is looking for a software engineer that’s as passionate about system performance as we are, with a strong background in systems or OS framework engineering.

This position is an opportunity to have a huge impact on Mac system performance and responsiveness. The WindowServer manages access to both HID device events, and display frame submissions, meaning we are involved in all user interaction at multiple points every time a user interacts with their Mac. You will be expected to dive into components across the Mac operating system to debug complicated performance issues dealing with window composition, frame pacing, video playback, game rendering, and other performance critical operations. You will also be ensuring that low power paths, such as video playback and other light workloads use as little power as possible, helping to extend customer battery life. A careful eye for detail will be required, as you will be working on critical system components, where crashes and memory leaks are not acceptable.

Strong software development and debugging skills in C/C++Objective-C/C++ and/or Swift experience a plusExperience developing and debugging large software systemsUnderstanding of OS fundamentals and systems designEagerness to work across multiple teams to make system improvementsExcellent verbal and written communication skills