Apple is seeking a Tools Engineer, Testing to join the Xcode Testing Tools & Infrastructure Engineering team. This role focuses on building next-generation test automation tools, infrastructure, and workflows for Swift Testing and XCTest frameworks within Xcode. The engineer will design and build Xcode's testing frameworks, shape service architectures and APIs, build robust client implementations, and deliver rich user interfaces. The goal is to enhance developer workflows and productivity, ensuring high-quality applications through effective testing. This position requires a strong passion for software development, testing, automation, and a solid understanding of computer science fundamentals.