> Markdown version of [/jobs/ext/1748144-sr-webkit-performance-engineer](https://www.wearedevelopers.com/jobs/ext/1748144-sr-webkit-performance-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr. WebKit Performance Engineer - **Company:** Apple Inc. - **Location:** San Diego, CA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** HTML, JavaScript (Programming Language), Application Programming Interfaces (APIs), Apple IOS, Apple Mac Systems, C++ (Programming Language), Cascading Style Sheets (CSS), Data Structures, Software Debugging, Memory Management, Scalable Vector Graphics, Software Engineering, Web Applications, WebGL, WebKit, Uikit, Information Technology, Web Technologies, Objective C++, Software Performance - **Published:** July 12, 2026 - **Apply:** https://www.beyondsandiego.com/job.asp?id=3317484882&tx=VT6459TTT&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * BS in Computer Science or equivalent work experience. * Expertise in C++. * Experience with software performance measurement, analysis, and optimization. * Detailed understanding of data structures and algorithms. * Experience with pointers, memory management, threads, and processes. Preferred Qualifications * At least 4 years of prior hands-on iOS or macOS application development. * Experience with Objective-C, Swift, and Cocoa APIs. * Experience with web technologies (HTML, CSS, JavaScript, SVG, WebGL, WebGPU). * Experience with UIKit and AppKit. * Excellent debugging, analysis, communication, and critical thinking skills. ## Description As a WebKit Performance Engineer, you will seek opportunities to improve WebKit performance as measured by execution time, memory consumption, and power use. You will also be responsible for diagnosing performance issues identified in benchmarks and in web applications, helping us identify and correct recent performance regressions, and helping to train and mentor others in performance improvement techniques. ## Related Videos - [SwiftUI In Production](https://www.wearedevelopers.com/videos/134-swiftui-in-production) - [Catching up on the basics you don't really need that much code](https://www.wearedevelopers.com/videos/903-catching-up-on-the-basics-you-don-t-really-need-that-much-code) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Rendering Design Software in the Browser at Penpot](https://www.wearedevelopers.com/videos/1353-rendering-design-software-in-the-browser-at-penpot) - [Unsolved mysteries between Usability and Accessibility in iOS](https://www.wearedevelopers.com/videos/737-unsolved-mysteries-between-usability-and-accessibility-in-ios) - [WeAreDevelopers LIVE – From JavaScript to WebAssembly, High-Performance Charting and More](https://www.wearedevelopers.com/videos/1794-wearedevelopers-live-from-javascript-to-webassembly-high-performance-charting-and-more) ## Related Articles - [Dev Digest 139 - Soft and hard queries](https://www.wearedevelopers.com/magazine/487-dev-digest-139-soft-and-hard-queries) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 133 - Back to Front](https://www.wearedevelopers.com/magazine/474-dev-digest-133-back-to-front) - [Apple iOS vs. Web Apps affects us all - help the OWA to ensure you can release apps for everyone](https://www.wearedevelopers.com/magazine/389-apple-ios-vs-web-apps-affects-us-all-help-the-owa-to-ensure-you-can-release-apps-for-everyone) - [Dev Digest 129 - Now that's what I call private data!](https://www.wearedevelopers.com/magazine/468-dev-digest-129-now-that-s-what-i-call-private-data) - [Dev Digest 128 - Do not Google Monopoly](https://www.wearedevelopers.com/magazine/465-dev-digest-128-do-not-google-monopoly)