David Vávra
CEO & Dev Lead at Step Up Labs
Prague, Prague, Czechia
Summary
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Rockstar🎓
Top SchoolDavid Vávra is a Google Developer Expert for Android and a seasoned mobile engineering leader with 15 years of experience building high‑scale consumer and enterprise apps. As founder and CEO of Step Up Labs he leads a team delivering Settle Up, a cross‑platform product with over 900K monthly active users and steady monetization via ads and subscriptions. He’s led Android teams at scale—owning architecture, security and large refactorings for products like MyŠkoda and enterprise digital assistants—while also contributing to open source (notably modernizing an Android Material dialogs library). Equally comfortable shipping product features and running company operations, he combines deep hands‑on Android expertise (Kotlin, DI, MVVM, CI/CD) with developer advocacy and community engagement. Based in Prague, he has a track record of turning complex mobile codebases into maintainable platforms and is an early adopter who pushes UX improvements such as dark theme support in community libraries.
15 years of coding experience
16 years of employment as a software developer
Master's, Software Engineering and Interaction, GPA 3.536, Master's, Software Engineering and Interaction, GPA 3.536 at Czech Technical University in Prague Faculty of Electrical EngineeringGraduate, Computer science, GPA 3.679, Graduate, Computer science, GPA 3.679 at Kansas State Universitygeneral, general at Gymnázium Joachima Barranda Beroun
English, Czech, German
Stackoverflow
18,814reputation
1.9mreached
65answers
25questions
android-gradle-plugin
top-1%
retrofit
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apk
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android-studio
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gradle
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android
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Github Skills (19)
android-gradle-plugin10
android-development10
java10
javas10
apk10
android10
android-studio10
gradlew10
retrofit10
gradle10
android-ui9
mobile-development9
dialogfragment7
autocompletetextview6
android-emulator6
Programming languages (13)
Github contributions (5)
avast/android-styled-dialogs
Jun 2013 - Jan 2016
Backport of Material dialogs with easy-to-use API based on DialogFragment
Role in this project:
Mobile Developer (Android)
Mobile Developer (Android)Contributions:7 releases, 58 commits, 12 PRs in 2 years 7 months
Contributions summary:David primarily focused on updating and refactoring the Android-based dialog library. Their contributions included migrating the project to Gradle for build management, unignoring the Gradle wrapper, and merging pull requests. They also addressed conflicts and updated demo activities, including the implementation of new dialogs and UI elements while refactoring code to support dark themes.
backportdialogfragmentmaterial-dialog
step-up-labs/Droppy
Oct 2017 - Aug 2024
Contributions:1 PR, 4 pushes, 3 comments in 6 years 11 months
menucustomizedsimple-yet-powerfulandroid-libraryandroid
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