Isaac Willian Mariotto Marques De Oliveira

Experience

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  Gryfo

  Apr 2021 - Mar 2022

  Android Developer

  At Gryfo, I contributed to the development of the facial recognition SDK, utilizing CameraX, Android NDK, image processing, and machine learning model implementation.- Developed a parallel flow for processing and storing images using coroutines, resulting in a 50% reduction in recognition time.- Implemented MVP using the SDK, facilitating testing for the entire team.- Developed image processing functions using NDK and C++.- Created tests for the machine learning model, enabling testing on a large user base.Technologies: Kotlin - Java - C++ - Android SDK - Android NDK - API Integration (Retrofit) - MVVM - Database (Realm) - XML - Git - Gitflow - Coroutines - Firebase - Android Jetpack - Remote configs - Deep Links - Machine Learning - Image Processing - Animations. Show less

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  Banco Original

  Mar 2022 - Nov 2022

  Android Developer

  At Banco Original, I contributed to the Ongoing Squad in the main project, making modifications to all modules of the native and hybrid applications, used by over 7 million users.- Refactored layouts across all areas of the application, enhancing the user experience.- Implemented features such as Flags, remote Configs, and deep links.- Implemented event tracking in collaboration with the loans department, enabling better analysis for the team.- Directly assisted in onboarding new members, reducing environment setup time by 50%.Provided support to leadership in operational and configuration tasks, expediting the team's overall deliveries.Technologies: Kotlin - Java - Android SDK - API Integration (Retrofit) - MVVM - XML - Clean Architecture - Dependency Injection - Git - Gitflow - Coroutines - Firebase - Android Jetpack - Remote configs - Deeplinks - IONIC - Firebase Analytics. Show less

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  Sticky - NFT Market

  Nov 2022 - May 2023

  Android Developer

  At Sticky NFT Market, I was responsible for the development of a global NFT marketplace, leading the implementation of new features and directly engaging with all areas to deliver optimal solutions for the project. The Android project concluded in May 2023.- Refactored the project architecture to enhance development speed, enabling quicker experimentation with new business rules.- Implemented events throughout the application using 4 different services, allowing for behavior analysis by the product team.- Developed the item purchasing module using the Google Play Billing Library, initiating revenue generation for the application.- Monitored metrics, events, and frauds in the Google Play Console.Technologies: Kotlin - Android SDK - MVVM - Clean Architecture - API Integration (Retrofit) - Database (Room) - XML - Dependency Injection (Koin) - Google Play Billing Library - GIT - Flow - Coroutines - Firebase - Android Jetpack - Navigation - Animations - Firebase Analytics. Show less

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  Rhitmo Tech

  Jun 2023 - Jul 2024

  Android Developer

  At Rhitmo Tech, I contributed to an offline-first time tracking application, leading the development of new features and actively seeking to enhance existing ones, thereby impacting over 20 thousand devices:- Rewrote the synchronization point manager, bringing improved performance and reliability to the product's main feature.- Restructured the project to follow the MVVM architecture, adhering to Google's recommended architectural practices, facilitating maintenance and test implementation.- Participated in meetings with stakeholders to present technical decisions and strategies to meet the product's new requirements.- Monitored the application in a production environment, analyzing the performance and stability of new functionalities.Technologies: Kotlin - Android SDK - Clean Architecture - API Integration (Retrofit) - MVVM - XML - Database (Room) - Dependency Injection (Koin) - GIT - Flow - Coroutines - Firebase - AppCenter - WorkManager - Services - Android Jetpack - Firebase Analytics. Show less

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  PicPay

  Sept 2024 - now

  Android Developer