Company: Apple
Location: London
Posted: April 17th, 2026
Debugging matters. Developers spend more time in the debugger than they spend on writing new code. Apple’s debugger+compiler integration team is looking for an engineer to improve the debugging experience for Clang-based languages. This involves work on LLDB, Clang, libc++, and related tools. You will closely collaborate with the Swift and LLVM open source projects.
Our team works at the intersection of compiler and debugger technology: we are responsible for the debugging experience, from generating debug information in our compilers (Clang, Swift, LLVM) all the way to the language plugins in the LLDB debugger. LLDB’s unique strength is its powerful expression evaluator that is backed by the actual compiler to JIT expressions typed by the developer into the debugged process and execute them.
In this role you will work on debugging support in Clang and LLDB. You will work closely with the LLVM open source project to design and implement end-to-end debugging support for the C++, C, and Objective-C languages.
At Apple, we’re not all the same. And that’s our greatest strength. We draw on the differences in who we are, what we’ve experienced and how we think. Because to create products that serve everyone, we believe in including everyone. Therefore, we are committed to treating all applicants fairly and equally. As a registered Disability Confident employer, we will work with applicants to make any reasonable accommodations. Apple will consider for employment all qualified applicants with criminal backgrounds in a manner consistent with applicable law. Learn more
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