Matt Lichtenstein is a Senior iOS Engineer with nine years of experience building polished, accessible UI for consumer-facing apps, currently contributing to Firefox for iOS at Mozilla from Saint Petersburg, FL. He has driven cross-platform UI/UX efforts for Mozilla VPN—owning component libraries, accessibility, and onboarding flows that helped increase paid subscribers by over 30%—and has deep practical experience in QML/Qt, Swift, and C++ across desktop and mobile products. Known for shipping high-coverage test suites and refactoring UI to reduce post-release defects, he pairs pragmatic architecture with attention to user experience and localization. His open-source contributions include bug fixes and UI improvements to the widely used Firefox for iOS project and UI work on the Mozilla VPN client, demonstrating a preference for UX-driven problem solving at scale. Less obvious: he blends product-minded experimentation (A/B tests, in-app messaging) with hands-on engineering to turn usage data into feature decisions.
9 years of coding experience
6 years of employment as a software developer
Bachelor of Science (B.S.) Computer Science, Bachelor of Science (B.S.) Computer Science at Florida State University
A fast, secure and easy to use VPN. Built by the makers of Firefox.
Role in this project:
Front-end Developer
Contributions:3 releases, 591 reviews, 79 commits in 9 months
Contributions summary:Matt primarily contributed to the user interface of the Mozilla VPN client. They implemented and modified QML components, including radio buttons, check boxes, and segmented navigation elements. The commits also involved improving the layout and visual design of the UI, adding features like a feature tour, tips and tricks, and an in-app messages inbox. The changes also include refactoring and bug fixes related to the UI components.
Contributions:191 reviews, 186 PRs, 269 pushes in 11 months
Contributions summary:Matt primarily contributed to the Firefox for iOS application by fixing bugs and refactoring code. Their work included addressing issues related to button margins, bookmark toasts, onboarding dismissal actions, and address autofill settings UI. They also refactored UI components and fixed issues with toolbar and context menu interactions. The user's focus was on improving the user interface and user experience of the iOS application.
firefoxbrowserios-appswiftios
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Matt Lichtenstein - Senior IOS Engineer at Mozilla