Swift is rapidly spreading beyond its origins in iOS and macOS app development to support every kind of software engineering, from compact embedded systems to large distributed server applications and everything in between. In this role, you will work on support in the Swift compiler and runtime for the Windows operating system – both as a host for compiling Swift code, and as a target to run Swift binaries. As part of this project, you will work closely with the Swift and LLVM open-source projects to build out support for the Windows, including implementing Windows-native runtime capabilities to better take advantage of the Windows environment.You will:* Collaborate on long-term architectural improvements to the Swift compiler and runtime* Optimize the Swift compiler and runtime to take full advantage of the Windows platform* Triage and reproduce issue reports from Swift users* Drive the testing, integration, and adoption of your changes into the development ecosystem.As part of the Swift effort at Apple, you will benefit from:* A supportive and tight-knit team* Technical and career mentorship* Access to experts across all areas of modern hardware and software development* A robust benefits package and a healthy work-life balance