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Guillermo Mazzola

Guillermo Mazzola

Mar del Plata, Buenos Aires Province, Argentina
Member since September 17, 2017
Guillermo is a professional developer who always aims for excellence and specializes in Android development (more than five years), Java (more than eight years), and React Native. He also has some experience with JavaScript, C++, and Python. Guillermo has worked as a team leader, is self-taught, and remains ever curious about his field.
Guillermo is now available for hire
  • Retrofit 2, 7 years
  • Java 8, 7 years
  • Dagger 2, 7 years
  • Android, 7 years
  • RxJava 2, 7 years
  • RxAndroid, 7 years
  • Agile, 6 years
  • React Native, 1 year
Mar del Plata, Buenos Aires Province, Argentina
Preferred Environment
macOS, Android Studio, Git
The most amazing...
...thing I've built was a worldwide shipment-tracking app with hot updates by downloading a secondary DEX file from a remote server.
  • Mobile Technical Manager
    2010 - PRESENT
    • Created a Gradle plugin for automatically incrementing Android's version code which integrates flawlessly with Play plugin.
    • Developed a simple interceptor with the Matchers API for Retrofit—allows the creation of test mocks without relaying it to a Mock server.
    • Built a NestedScrolling aware library for Google Maps' fragment that solves the scrolling issues when used with a CoordinatorLayout.
    • Made a SeekBarPreference library with support for both stock and AppCompat preferences framework.
    Technologies: Android, Java
  • Languages
    Java 8, JavaScript, Kotlin, Python, C++
  • Frameworks
    Android SDK, Google Guice, Guice, Dagger 2, JUnit, Spring, Hibernate 4+, Hibernate, Espresso Testing Framework, Spring MVC, Spring Boot, Hibernate ORM, Jersey, Dropwizard, React Native
  • Libraries/APIs
    RxJava 2, Retrofit 2, Firebase Android SDK, EasyMock, Jackson, GSON, Google Gson, Google API, Google Maps, Google Ads API, Google Maps SDK, Retrofit, Facebook API, Quartz, Google Places API, jQuery, Slack API, Google APIs
  • Tools
    Android Studio, Genymotion, RxAndroid, Git, Java Concurrency, Android APT, JIRA, Rally, Slack, Maven, Apache Maven, Subversion (SVN), TortoiseSVN, ActiveMQ
  • Platforms
    Android, Firebase, HockeyApp, Google App Engine, Android TV
  • Storage
    MySQL, H2, SQLite, MySQLdb, MySQL Server, Elasticsearch
  • Other
    Android Theming, Android Studio Emulators, OkHttp, AdMob, Google AdMob, Hibernate Validators, Slack App, Espresso, Hibernate Criteria
  • Paradigms
    Agile, Kanban
  • System Information Engineer's degree in Computer Engineering
    2004 - 2010
    Universidad Tecnológica Nacional - Rosario, Santa Fe, Argentina
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