Evan Hahn
Software Engineer at SignalApp
Summary
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RockstarEvan Hahn is a software engineer with five years of hands-on experience focused on front-end and iOS development, notable for contributions to the widely used Signal messenger. He has improved user-facing features and UX flows—revamping call screens, left-pane designs, and in-app notification behaviors—demonstrating a strong product sensibility alongside engineering skill. Evan’s work spans desktop and mobile clients, showing an ability to translate design intent into polished interfaces across platforms. His GitHub history reflects careful attention to interaction details such as viewed indicators and donation flow UX, signaling a knack for subtle improvements that boost user clarity. Equally comfortable shipping features and refining user workflows, he brings pragmatic craftsmanship to privacy-focused, open-source projects.
5 years of coding experience
Github Skills (16)
ux-design10
swift10
typescript10
ios10
user-interface10
typescripts10
user-experience10
front-end-development10
ui-design10
interface-design10
react10
typescript-types10
javascript9
objective-c8
ui-framework8
Programming languages (9)
Github contributions (5)
signalapp/Signal-Desktop
Aug 2020 - Jan 2023
A private messenger for Windows, macOS, and Linux.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:31 releases, 89 reviews, 1014 commits in 2 years 5 months
Contributions summary:Evan primarily contributed to the front-end development of the Signal Desktop application, making significant changes to the user interface and user experience. They fixed call header titles, updated the designs for the calling lobby and call screen, and added a new design for the left pane. Additionally, they implemented features such as displaying a notification in the left pane for group call members, and also added the option to show a "viewed" indicator on outgoing audio messages.
signalwindowselectronchatlinux
signalapp/Signal-iOS
Aug 2020 - Jan 2023
A private messenger for iOS.
Role in this project:Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:8 releases, 10 reviews, 701 commits in 2 years 5 months
Contributions summary:Evan primarily contributed to the iOS application development, focusing on features specific to the user interface (UI) and user experience (UX). The commits demonstrate changes to settings screens, the display of chat messages, and improvements in the user workflow with respect to notifications and menu display. The code changes involve modifications to the user interface, indicating a focus on enhancing the user experience within the Signal app. The user's contributions also encompass updates to the donation flow, showing a clear involvement in features related to in-app user interaction.
signalchatcommunicationswiftios
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