Grant Toepfer
Software Engineer at Meta
Seattle, Washington, United States
Summary
👤
Senior🎓
Top SchoolGrant Toepfer is a software engineer with 11 years of experience building high-impact systems across big data, personalization, and UI/input frameworks. He has driven recommendation and instrumentation systems at Amazon, improved CI and platform quality for Jetpack Compose at Google, and now works on input and interaction frameworks at Meta Reality Labs. Grant combines backend data engineering and ML-driven personalization with deep frontend expertise in text and input handling—contributing bug fixes and tests to the high-profile AndroidX Compose project. He’s effective at cross-functional initiatives that improve product UX and developer velocity, from federating monoliths into services to delivering large-screen input features used by millions. Based in Seattle, he’s known for turning tricky edge-case problems (directional text, mouse vs. touch) into robust, testable solutions.
11 years of coding experience
9 years of employment as a software developer
Bachelor of Science (BS) Computer Science, Bachelor of Science (BS) Computer Science at University of Washington - TacomaAssociate of Science (AS) Computer Science, Associate of Science (AS) Computer Science at Clark College
Github Skills (10)
android-test10
uid10
gesture-recognition10
gesture10
android-testing10
front-end-development10
gesture-recognizer10
ui-design10
textinput10
gestures10
Programming languages (6)
Github contributions (5)
androidx/androidx
Nov 2022 - Jan 2023
Development environment for Android Jetpack extension libraries under the androidx namespace. Synchronized with Android Jetpack's primary development branch on AOSP.
Role in this project:
Mobile Developer (Android)
Mobile Developer (Android)Contributions:8 commits in 1 month
Contributions summary:Grant primarily contributes to UI and input handling aspects of the Android Jetpack Compose framework. They focus on fixing bugs related to text selection, cursor behavior, and input gestures within text fields and context menus. Their work involves creating or modifying existing test cases to verify the expected behavior of these components, with a focus on both touch and mouse input. The user is also seen integrating these text components into the composable and framework level code.
jetpack-composejetpack-androidsynchronizednamespaceandroid
Grantapher/ValheimPlus
Jan 2023 - Mar 2025
A HarmonyX Mod aimed at improving the gameplay and quality of life of the game Valheim.
Contributions:49 releases, 77 reviews, 39 PRs in 2 years 2 months
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