Desenvolvedor Para Android at Polícia Militar do Distrito Federal - PMDF
Gama, Federal District, Brazil
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Summary
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Senior
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Top School
João Holanda is a seasoned Android developer with 10 years of experience building native mobile apps using Java, Kotlin and Flutter, currently coding at PicPay and studying Mathematics at the University of Brasília. He combines strong engineering fundamentals—Clean Architecture, SOLID principles, MVVM/MVP patterns and test-driven practices—with hands-on expertise in Jetpack components, Room, Firebase, dependency injection (Hilt/Koin) and reactive/concurrency tools like RxJava and Coroutines. Comfortable in agile environments and Gitflow workflows, João has delivered production apps across startups and consultancies and brings practical UI skills (CustomViews, Material Design) that improve user experience. Uncommonly for a developer, he also serves in the Polícia Militar do Distrito Federal, reflecting discipline and a capacity to balance high-responsibility roles while returning to academic fundamentals and exploring new languages and tools.
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João Holanda - Desenvolvedor Para Android at Polícia Militar do Distrito Federal - PMDF