Sr. WebKit Performance Engineer

San Diego · On site · Posted 7/9/2026 Leaves the board tomorrow
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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.

Minimum Qualifications
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.