Zach Klippenstein
Staff Android Engineer at Block
San Francisco, California, United States
Summary
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Rockstar🎓
Top SchoolZach Klippenstein is a Staff Android Engineer based in San Francisco with a decade of experience building mobile platforms and payments systems at Block, Google, Square, and Amazon. He brings deep expertise in Android internals—particularly Jetpack Compose text input, accessibility, and keyboard/scrolling behaviors—combined with practical experience shipping Square’s Register and payment integrations. An active open-source contributor, Zach has contributed to the androidx/androidx project and Square’s Workflow libraries, improving text fields, a11y tooling, and mobile rendering. He’s also led and mentored Android teams as an engineering manager and holds a B.C.Sc.(Hons.) from the University of Manitoba.
11 years of coding experience
13 years of employment as a software developer
B.C.Sc.(Hons.), B.C.Sc.(Hons.) at University of Manitoba
French
Stackoverflow
66reputation
2kreached
3answers
0questions
Github Skills (21)
kotlin10
ui-d10
ios10
android-test10
user-interface10
userinterface10
android-developer10
front-end-development10
android10
android-developers10
mobile10
android-ui10
androidtest10
android-testing10
frontend-development10
Programming languages (12)
Github contributions (5)
square/workflow
Nov 2018 - Nov 2020
A Swift and Kotlin library for making composable state machines, and UIs driven by those state machines.
Role in this project:
Mobile Developer
Mobile DeveloperContributions:16 releases, 6 reviews, 1050 commits in 1 year 11 months
Contributions summary:Zach is primarily focused on adding and enhancing UI elements, and is actively modifying the project's UI framework to introduce various mobile features, such as support for button-based actions, touch gesture support. The majority of the work revolves around modifications of classes related to rendering for mobile platforms.
kotlin-librarystate-machinesmachinesandroidkotlin
square/workflow-kotlin
Apr 2020 - May 2022
A Swift and Kotlin library for making composable state machines, and UIs driven by those state machines.
Role in this project:Front-end Developer
Front-end DeveloperContributions:13 releases, 352 reviews, 441 commits in 2 years 1 month
Contributions summary:Zach's commits primarily focused on UI-related tasks within the workflow-kotlin project. They removed non-Kotlin files and README text. Furthermore, the user refactored the codebase, renaming "VeryExperimentalWorkflow" to "ExperimentalWorkflow" and removing deprecated functions. The user also made documentation improvements.
kotlin-librarystate-machinesmachinesandroidkotlin
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