Guilherme De Oliveira Chaguri
Senior Software Engineer at Livelo
São Paulo, Brazil
Summary
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RockstarGuilherme De Oliveira Chaguri is a Senior Software Engineer based in São Paulo with 13 years of experience building cross-platform apps, backend services and game/interactive solutions. He has strong Android and mobile expertise—evidenced by meaningful contributions to popular React Native audio libraries where he improved media controls, playback stability and notification behavior. His recent roles span product-focused innovation at IP Facens’ LIGA and enterprise integrations at Alutal, working across TypeScript/Node/Nest, React/Angular, .NET/Unity and AWS. Comfortable from low-level mobile media sessions to cloud architectures, he blends pragmatic engineering with a track record of shipping reliable systems and automating business processes. A detail-minded developer, he often surfaces subtle UX fixes (headphone unplug handling, volume/media button edge cases) that improve real-world reliability.
13 years of coding experience
7 years of employment as a software developer
English, Spanish, Portuguese
Stackoverflow
33reputation
2kreached
2answers
2questions
Github Skills (16)
javas10
exoplayer10
react-native-component10
notification10
react-native10
android10
audio-playback10
java10
media-player9
audio-player6
google-chrome6
sql6
google-cast6
react-native-track-player6
mysql6
Programming languages (12)
Github contributions (5)
doublesymmetry/react-native-track-player
Mar 2017 - May 2021
A fully fledged audio module created for music apps. Provides audio playback, external media controls, background mode and more!
Role in this project:
Mobile Developer (Android)
Mobile Developer (Android)Contributions:7 releases, 1 review, 295 commits in 4 years 3 months
Contributions summary:Guilherme focused on implementing and maintaining core audio playback features, primarily within the Android platform. Their work involved modifications to the `MediaNotification` and `ExoPlayback` classes, suggesting a focus on improving the user experience by refining playback controls and the visual display of metadata. The commits also indicate improvements to error handling and stability within the audio playback system, contributing to a more reliable user experience.
music-libraryaudio-playerplayerplayback-audiowindows
tanguyantoine/react-native-music-control
Dec 2016 - Nov 2017
Display and manage media controls on lock screen and notification center for iOS and Android.
Role in this project:Mobile Developer (Android)
Mobile Developer (Android)Contributions:30 commits, 26 PRs, 38 pushes in 11 months
Contributions summary:Guilherme primarily focused on recoding the Android support for the React Native music control library. They implemented core functionalities for displaying and managing media controls on the Android platform, including interactions with media sessions, notifications, and media button events. The user also updated the code to include rating types, fix media button and volume issues, handle the headphone unplug trigger, and made improvements to asset loading from the react style image.
centerreactlockreact-nativelock-screen
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