Summary
Overview
Work History
Education
Skills
Languages
Timeline
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GUSTAVO BELO BRILHANTE

Fortaleza

Summary

- Senior Android Developer with over 10 years of experience delivering high-quality mobile solutions across global markets. My journey spans from greenfield development to legacy modernization, always focused on performance, scalability, and clean architecture.

- I’ve led architecture migrations from Java MVP to Kotlin MVVM using Clean Architecture, TDD, and SOLID principles—resulting in significantly improved modularity, testability, and app stability. At HER App, I resolved concurrency issues that reduced the ANR rate from over 1% to an accepted rate.

- I enjoy mentoring developers and fostering collaborative environments where teams can grow technically and deliver value with quality. Whether through Jetpack Compose, Coroutines, or modern CI/CD pipelines using GitHub Actions, I always aim to bring thoughtful engineering to every product I help build.

- Key Skills: Android, Java, Kotlin, Jetpack Compose, Android Jetpack, CI/CD, GitHub Actions, Git Flow, TDD, Unit test, MVP, MVVM, Design Patterns, Clean Architecture, SOLID principles, and Clean Code. I always strive to write high-quality, scalable, and well-structured code.

Overview

8
8
years of professional experience

Work History

Senior Android Engineer

HER App
04.2022 - 01.2025
  • Led the migration from MVP + RxJava to MVVM + Kotlin + Clean Architecture, increasing scalability and reducing technical debt
  • Implemented best development practices such as TDD and SOLID principles, enhancing app quality, improving the efficiency of code reviews, and positively impacting over 1 million users.
  • Reduced ANR rate from > 1% to < 0.47%, significantly improving performance and user satisfaction
  • Initiated app modularization, enabling parallel development across teams and improving build times
  • Managed CI/CD pipeline and Play Store releases using GitHub Actions, ensuring reliable deploymentsSkills: Android SDK, Kotlin, Coroutines, Flows, RxJava, Android Jetpack, Hilt, Dagger, Firebase, CI/CD, GitHub Actions, Git Flow, TDD, Modularization, SOLID Principles, Clean Code, Design Patterns, Composition over Inheritance

Senior Android Engineer

PSafe
12.2018 - 04.2022
  • Migrated all features from a Java + MVP to MVVM + Kotlin + Clean Architecture. Increasing scalability and reducing technical debt
  • Leveraged SOLID principles to build modular and reusable core features, allowing two app modules—DFNDR Security and DFNDR Performance— to share a unified codebase within the same project.
  • Promoted engineering best practices by leading code reviews, mentoring team members, and advocating for TDD, Clean Code, and SOLID principles, positively impacting an app with 100+ millions downloads
  • Skills: Android SDK, Android, Java, Kotlin, Coroutines, Flows, Android Jetpack, Dagger, Firebase, Unit Testing, Git Flow, TDD, Modularization, SOLID Principles, Clean Code, Design Patterns, Composition over Inheritance

Android Engineer

Olibra LLC
07.2018 - 10.2018
  • Adopted best practices in architecture and clean code for development and maintenance of the bond.io Android app using Kotlin. Adopted MVVM architecture with Clean Architecture, SOLID principles and project modularization to accomplish performant, scalable, and maintainable Android application
  • Used tools such as Android Jetpack, Gradle, GitFlow, GitHub Actions to support the entire development lifecycle.
  • Skills: Android, Kotlin, Java, Android SDK, Coroutines, RxJava, Android Jetpack, Git, GitFlow, Gradle, MVVM, SOLID, Modularization, Android Studio, Unit Testing.

iOS Engineer

Bravi Solutions
02.2018 - 07.2018
  • Development and maintenance of new features on an iOS Game App to improve English skills.
  • Skills: Objective-C, Swift, CocoaPods, GitLab, Fastlane, Targets, Layout Animations.

Android and Web Engineer

Citrum
06.2017 - 02.2018
  • Development of a native Android point-of-sale (PDV) app
  • Maintenance of web application.
  • Technologies: Yii, PHP, MySQL, Java, XML, Animations, RxAndroid, RxJava, Retrofit, ButterKnife.

Android & iOS Engineer

Ifactory
12.2016 - 03.2017
  • Worked on the Easynvest Renda Fixa Project
  • Android development with JAVA
  • IOS development with Swift

Education

Computer Science

Universidade Federal do Ceará - UFC
01.2016

Exchange Program - Computer Science

Dublin Business School
08.2014

Skills

  • Android
  • Java
  • Kotlin
  • Jetpack Compose
  • Android Jetpack
  • CI/CD
  • GitHub Actions
  • Git Flow
  • TDD
  • Unit test
  • MVP
  • MVVM
  • Design Patterns
  • Clean Architecture
  • SOLID principles
  • Clean Code
  • Figma
  • Jira
  • Slack

  • Confluence
  • Coroutines
  • Flows
  • RxJava
  • Hilt
  • Dagger
  • Firebase
  • Android SDK
  • Modularization
  • Swift

Languages

English
Advanced (C1)
Portuguese
Bilingual or Proficient (C2)

Timeline

Senior Android Engineer

HER App
04.2022 - 01.2025

Senior Android Engineer

PSafe
12.2018 - 04.2022

Android Engineer

Olibra LLC
07.2018 - 10.2018

iOS Engineer

Bravi Solutions
02.2018 - 07.2018

Android and Web Engineer

Citrum
06.2017 - 02.2018

Android & iOS Engineer

Ifactory
12.2016 - 03.2017

Exchange Program - Computer Science

Dublin Business School

Computer Science

Universidade Federal do Ceará - UFC
GUSTAVO BELO BRILHANTE