OS Performance Tools Engineer

In this role, you will spend your time at the intersection of data, systems knowledge, and software engineering. Some days that means diving into performance diagnostics to understand why a user interaction felt slow — tracing the problem through layers of the system and surfacing a finding that helps another team ship a fix. Other days it means stepping back to ask how that same investigation could be faster, more automated, or more insightful at scale, and then building the tooling or AI-assisted workflow to make it so. You will work closely with engineers across many disciplines — systems, graphics, data, and more — learning how Apple's platforms work end to end, and translating that knowledge into tools that make the broader organization more effective. The role rewards curiosity, systems thinking, and a bias toward impact. Minimum Qualifications Excellent problem-solving and critical-thinking skills Strong OS & Systems fundamentals Proficient in C/ObjC/Swift or similar language Prior development experience in Unix, Linux, macOS, or iOS Aptitude to independently learn new technologies, prototype and propose software design and solutions Passion for product quality and attention to detail Excellent spoken and written communication CS degree or equivalent experience Preferred Qualifications None