Senior Android Engineer | Kotlin Developer | App Platform | AI-Assisted Development
About Me
I am a Senior Android Engineer with more than 12 years of experience building high-impact mobile products across fintech, e-commerce, airlines, healthcare, and technology consulting. I have worked on apps that reached over 100 million monthly active users and have contributed to products with millions of downloads in Brazil and Latin America.
My core expertise includes Kotlin, Jetpack Compose, Kotlin Coroutines, KMP, MVVM, and Clean Architecture. I also have strong experience with Android SDK, dependency injection, REST APIs, testing, CI/CD, and observability tools. I care deeply about code quality, maintainability, and scalable architecture.
Throughout my career, I have led migrations from Java to Kotlin, modernized legacy codebases, improved app performance, and increased test coverage through TDD practices. I have also contributed to design systems, internal documentation, and cross-functional collaboration with product, UX, QA, and iOS teams.
In recent roles, I have helped build and maintain payment, authentication, and checkout systems, as well as mobile experiences for banking, healthcare, and fitness platforms. I have also supported LATAM developers with frameworks, plugins, and technical guidance, and I have delivered apps as both an individual contributor and project lead.
I am an early adopter of AI-assisted and agentic development workflows. I have hands-on experience with Claude Code, Cursor, and MCP, and I use these tools to improve code review automation, spec-driven development, and automated testing.
I am currently expanding my backend skills with Node.js and Ktor while exploring BFF patterns. I am open to remote opportunities and bring a strong mix of mobile engineering depth, product thinking, and modern development practices.
Skills
JavaScriptJavaAzureCI CDGitAgileGitHubScrumMongoDBKotlinSwiftTest AutomationJunitTDDFirebaseRetrofit
Education
MBA in Mobile App Development & IoT
B.S. in Information Systems Management
Experience
Architected and maintained checkout, money transfer, and device authentication libraries for the Mercado Pago app; reduced recurring crash rate by 20%; contributed to agentic tooling adoption using Claude Code and Cursor; built MCP integrations to automate test scenarios and payment flow test generation.
Led migration from legacy code to Jetpack Compose; improved app performance and user experience; increased test coverage from 0% to 80% through TDD adoption; integrated Ktlint into Jenkins CI/CD; contributed to design system work and internal technical documentation.
Supported LATAM app developers with custom frameworks, plugins, and technical documentation; independently designed and published Coralys Fit, a HarmonyOS wearable app with 5,000+ downloads.
Built Tarjeta Urbana, a cross-platform prepaid card app using Ionic v5 and Angular 8 with native plugins in Swift and Java.
Led Java-to-Kotlin migration in a modular architecture; reduced boilerplate by about 30%; contributed to PIX on an app with 5M+ downloads.
Delivered two full healthcare apps as sole developer and project lead; applied MVVM, MVP, and VIPER across native Android and iOS codebases.
Developed features for a cross-platform banking app with 10M+ downloads; collaborated with iOS and UX teams using Scrum.
Maintained and delivered features for the Avianca app; led implementation of the crew management application.
Delivered UX improvements, geofence features, and analytics integrations; led Java-to-Kotlin migration and managed full release cycles for both stores.