William Lumley
Staff Software Engineer at CommSec
Sydney, New South Wales, Australia
Summary
👤
Senior🎓
Top SchoolWilliam Lumley is a senior software engineer based in Sydney with nine years of hands-on experience building production-grade native mobile apps, specialising in iOS (Swift, SwiftUI, Objective-C) and also shipping Android, web, and embedded systems. He has led mobile modernisations and platform re-architecture at enterprise scale—helping deliver a fully digital home-loan flow at ANZ Plus and driving CI/CD, TDD, and performance improvements as a lead at GraysOnline. William blends low-level systems work (custom OpenCV vision on Raspberry Pi and bespoke UDP protocols) with high-level product thinking, having acted as both technical lead and product manager on multiple projects. An active open-source maintainer, he prioritises clean architecture and developer experience, and brings practical AWS and Laravel experience to cross-functional teams. Notably, he thrives on constrained-hardware challenges, turning performance and precision trade-offs into elegant, deployable solutions.
10 years of coding experience
14 years of employment as a software developer
Bachelor of Computer Science Majoring in Cyber Security Computer Science, Bachelor of Computer Science Majoring in Cyber Security Computer Science at Charles Sturt University
Stackoverflow
157reputation
11kreached
10answers
10questions
Github Skills (45)
ios10
linux10
swift10
macos10
favicon10
cocoapods10
swift-package9
nscolorwell9
rich-editor9
nstextview9
rich-text-editor9
cpp9
swiftui8
combine8
facebook-messenger-bot8
Programming languages (8)
Github contributions (5)
will-lumley/FaviconFinder
Dec 2019 - Aug 2022
A small swift library for iOS & macOS to detect favicons used by a website.
Contributions:23 releases, 11 reviews, 174 commits in 2 years 8 months
iosmacosswiftfaviconfavicon-downloader
will-lumley/RichEditor
Jan 2020 - May 2022
The macOS RichEditor library allows you to turn a native NSTextView into a full blown WYSIWYG editor.
Contributions:4 releases, 54 commits, 4 PRs in 2 years 3 months
macosnstextviewrich-editorwysiwygswift
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