JavaScript Virtual Machine Compiler Engineer

Apple
📍 Cupertino, CA, United States 💼 Full-time 🕒 Posted June 27, 2026

Job Description

**Role Number:** 200631874-0836

**Summary**
In this role, you have the opportunity to push the state of the art of JavaScript and WebAssembly performance. The JavaScriptCore team at Apple is looking for system programmers with compiler (especially just-in-time) and virtual machine experience. You will be working to deliver a faster and more secure web for all Apple products by improving JavaScriptCore’s already world-class JIT compilers, runtime systems, and the garbage collector. The work is challenging, and the impact is worldwide. Join us.

**Description**
The JavaScriptCore team in WebKit is responsible for the JavaScriptCore engine, and our mission is to make JavaScript and WebAssembly execution both fast and secure. JavaScriptCore engineers work on all aspects of the engine: the compilation pipeline, the language runtime, the garbage collector, and the API for native apps. The compilation pipeline consists of the parser, the bytecode frontend, profile-guid...

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Job Details

  • Location Cupertino, CA
  • Job Type Full-time
  • Category other-general
  • Posted Date June 27, 2026
  • Application Deadline July 02, 2026