Apple
Sr. WebKit Performance Engineer
$175K–$308K
San Diego, California · Senior · Full-time · Posted Jul 9, 2026
- Experience
- At least 4 years of prior hands-on iOS or macOS application development is preferred; no other years requirement stated.
- Education
- BS in Computer Science or equivalent work experience.
About the job
Improve WebKit performance across Apple platforms by finding and fixing bottlenecks and regressions, developing benchmarks, and collaborating with Apple teams and the open-source WebKit community.
What you'll do
- Investigate poor performance in WebKit-based applications and identify framework bottlenecks.
- Create and maintain performance benchmarks; diagnose and correct regressions.
- Work across Apple teams and with WebKit contributors to improve core frameworks; train and mentor others in performance techniques.
What they ask for
- Expertise in C++.
- Experience measuring, analyzing, and optimizing software performance.
- Detailed understanding of data structures and algorithms.
- Experience with pointers, memory management, threads, and processes.
Nice to have
- At least 4 years of hands-on iOS or macOS application development.
- Experience with Objective-C, Swift, Cocoa APIs, web technologies, UIKit, or AppKit.
Pay
$175,000 to $308,500 USD base salary
Tools
C++, Objective-C, Swift, Cocoa APIs, HTML, CSS, JavaScript, SVG
Model-written summary · the original posting is authoritative