JavaScriptCore Security Engineer

Cupertino, United States of America💼 Full-time🗓 2025-11-14 → 2026-09-28

Core

Securing the JavaScriptCore virtual machine to ensure fast and secure execution of JavaScript and WebAssembly on Apple products.

Role type

Senior IC security engineer (virtual machine & compiler)

Builds

The JavaScriptCore engine subsystems (compilation pipeline, language runtime, garbage collector, memory allocators, native API)

Domain

Web browser engine security, systems programming

Required skills

C++ programming, compiler/parsing/interpreter development, assembly-level programming, debugging, critical thinking, privacy/security software development

Preferred skills

Just-in-time compiler experience, web browser development, memory allocator/garbage collector expertise, fuzzing, security architecture, memory safety, JavaScript, WebAssembly

Technologies

C++, JavaScript, WebAssembly

Responsibilities

Drive innovations in security architecture, fix security issues, respond to fuzzing, update security processes to best practices

Seniority

Senior, hands-on IC

Sourced via apple · Listed on CareerPlan, which tracks 854,000+ jobs from 20+ sources.

About Apple

Computers and Electronics Manufacturing194620Cupertino, California, USFounded 1976

We’re a diverse collective of thinkers and doers, continually reimagining what’s possible to help us all do what we love in new ways. And the same innovation that goes into our products also applies to our practices — strengthening our commitment to leave the world better than we found it. This is where your work can make a difference in people’s lives. Including your own. Apple is an equal opportunity employer that is committed to inclusion and diversity. Visit apple.com/careers to learn more.