Rahul Sainani
Staff Android Engineer at voize
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolRahul Sainani is a Staff Android Engineer based in Berlin with a decade-long history building Android apps and seven years of focused professional experience. He cofounded WT InfoTech and grew the augmented-reality app World Around Me to 500k+ installs, 26 localizations and a 4.7 rating while keeping APK size under 10MB—a signal of product-first engineering discipline. At Mozilla he led performance efforts (Baseline profiles) that improved startup times by 10–30%, designed tablet-first browser experiences used by millions, and proposed unified UI frameworks to reduce long-term engineering complexity. Rahul combines hands-on feature work—contributing UI and login/permission fixes to Firefox for Android—with team leadership, mentoring, and measurable product outcomes like redundant-download prevention and onboarding experimentation. He has a knack for slicing complex AR and mobile features into shipping, performant products and has shipped AR demos on smart glasses and instant-app experiences showcased at Google I/O. Prolific in both startup and large-org contexts, he balances pragmatic engineering, UX attention, and architectural foresight.
7 years of coding experience
7 years of employment as a software developer
Bachelor of Technology (B.Tech.), Electronics and Instrumentation, Bachelor of Technology (B.Tech.), Electronics and Instrumentation at Institute of Technology and Management
English, Hindi, German
Stackoverflow
3,597reputation
562kreached
32answers
28questions
android
top-5%
kotlin
top-5%
Github Skills (21)
kotlin10
download-manager10
android-compose10
android10
unit-testing9
compose9
ui-design9
browser9
notification9
file-handling8
firefox7
android-jetpack6
transparency6
android-jetpack-compose6
ktor6
Programming languages (4)
Github contributions (5)
mozilla-mobile/fenix
Dec 2022 - Jan 2023
⚠️ Fenix (Firefox for Android) moved to a new repository. It is now developed and maintained as part of: https://github.com/mozilla-mobile/firefox-android
Role in this project:
Mobile Developer (Android)
Mobile Developer (Android)Contributions:31 reviews, 9 commits, 14 PRs in 1 month
Contributions summary:Rahul primarily contributes to the Firefox for Android (Fenix) project, focusing on UI and feature implementations within the Android platform. Their work involves fixing bugs related to user login validation, improving emulator network access, and adding functionality for addon settings and notification permissions. These commits suggest the user is involved in building and maintaining the Fenix Android application, making it more user-friendly and addressing issues.
firefoxbrowserandroidfirefox-for-androidmozilla
rahulsainani/fenix
Nov 2022 - Feb 2023
Firefox for Android
Contributions:44 pushes, 22 branches in 2 months
firefoxandroidfirefox-for-android
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