Rafael Estrela

Experience

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  Freelancer

  Dec 2015 - Dec 2019

  Android Developer

  Wrote and maintained native Android apps.Wrote apps from scratch using Java, Retrofit, and GsonWorked close to clients, coworkers, and native English speakersHandled Google Play app publishing

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  Canoastec

  Mar 2017 - Oct 2017

  Suporte Técnico N1

  Suporte técnico em informática.Atividades de manutenção e suporte em hardware, software e redes.

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  RCA Digital

  Oct 2017 - Jul 2020

  Mobile Developer

  Wrote and maintained native Android and iOS apps.Developed and maintained native Android applications using AndroidStudio, Java and KotlinImplemented features using Android DataBinding and Lifecycle, as well as Retrofit and Gson for Rest API digestEngaged in daily operations with agile frameworks, such as Scrum and KanbanSicredi Digital (Outsourcing)Wrote and maintained native Android modules using Kotlin, Retrofit, Gson, Android Paging Library, and CoroutinesWrote extensive unit tests using JUnit, Mockito and RobolectricActively participated in architecture and accessibility guilds Show less

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  Deliver IT Serviços de Tecnologia

  Jul 2020 - now

  Sr Mobile Developer

  Grupo RBS (Outsourcing)Developed and maintained Android modules with native Kotlin code, using SOLID and Clean Architecture patterns, implementing Kotlin Coroutines, writing extensive unit tests with JUnit and MockK, performing API digestion with GraphQL and ensuring code quality with Ktlint and DetektAddressed GDPR requirementsImplemented Android apps UI with Jetpack ComposeImplemented iOS apps UI with SwiftUI and CombineRealize CFI (Outsourcing)As a Mobile Lead, engaged into upstream and downstream workflowsLed and supported agile framework ceremonies, performing metric evaulationsMaintained and created components within the product's Design SystemMaintained and developed Android modules for internal use, relying on Android Jetpack tools, such as Navigation Components and Navigation ArgumentsExecuted Rest API digest using Retrofit, Gson, Coroutines, and Kotlin FlowImplemented SOLID and Clean Architecture patternsImplemented multiple code quality tools in automated processes, like Ktlint, Detekt, and SonarContributed to cross-squad performance, maintaining shared modules and implementing CI/CD stepsDeveloped and implemented improvements for unit test policiesActively participated in Mobile and DesignOps chaptersParticipated in deploy automation and accessibility implementation initiatives Show less