Available to hire
Hi, I’m Edwin Meira de Alcântara Costa. I’m a Mobile Developer specializing in Kotlin, focused on high-performance Android applications. I enjoy building responsive, scalable apps and delivering excellent user experiences.
I also work with .NET backend solutions and enterprise integration, and I collaborate with international teams in the United States. I follow SOLID principles, Clean Architecture, and TDD, and I enjoy leveraging AI tools to streamline development, testing, and documentation.
Language
Portuguese
Fluent
English
Fluent
Work Experience
Backend & Corporate Systems at Watchtower Bible and Tract Society / Associação Torre de Vigia
November 30, 2024 - PresentDesktop UI development using WPF (C#, XAML) with MVVM, testable ViewModels, dependency injection, and data-binding. Backend development in ASP.NET Core with layered architecture, AutoMapper and MediatR/CQRS. Implemented intelligent development practices leveraging AI tools like GitHub Copilot to streamline code generation, automate testing, and enhance documentation. Remote collaboration as part of an international team, working closely with members primarily located in the United States. Applications used by tens of thousands of users across multiple countries.
Android Developer at Watchtower Bible and Tract Society / Associação Torre de Vigia
January 1, 2015 - November 1, 2024Android development in Kotlin/Java using Clean Architecture and MVVM. Jetpack Compose, Coroutines, Flow, Koin, Room, Retrofit, and Gradle modularization. Leveraged GitHub Copilot to accelerate code development and automate testing. Unit and instrumented tests, performance optimization, and continuous maintenance. Worked remotely within an international team, with most collaborators based in the United States.
C# / SQL Server Development at Watchtower Bible and Tract Society / Associação Torre de Vigia
February 1, 2012 - January 1, 2015Development and maintenance of internal applications using C# and SQL Server.
Senior Systems Analyst at Banco Bradesco S/A
January 1, 2011 - January 1, 2012Technical leadership in corporate application development and support. Technologies: Java, JSF, Struts, WebSphere, Mainframe z/OS.
J2EE Architect at Capgemini
October 1, 2006 - January 1, 2011Architecture and development of J2EE applications with mainframe integration. Technologies: Java, JSF, Spring, Struts, DB2, WebSphere, JBoss.
C# / SQL Server Developer at Watchtower Bible and Tract Society / Associação Torre de Vigia
January 31, 2012 - January 30, 2015Development and maintenance of internal applications using C# and SQL Server.
Education
Bachelor of Science in Computer Science at UNIFIEO
January 11, 2030 - December 1, 2004Bachelor of Science in Computer Science at UNIFIEO
January 11, 2030 - December 1, 2004Qualifications
Webinar (2025) – Using AI Reasoning Models for Complex Technical Work.
January 1, 2025 - January 13, 2026AI Summit 2025 (30h) – Fundamentals and Practical Applications of AI, Prompt Engineering, Responsible AI, Generative AI, Machine Learning.
January 1, 2025 - January 13, 2026Webinar: Using AI Reasoning Models for Complex Technical Work
January 1, 2025 - February 3, 2026AI Summit 2025 – Fundamentals and Practical Applications of AI, Prompt Engineering, Responsible AI, Generative AI, Machine Learning
January 1, 2025 - February 3, 2026Industry Experience
Software & Internet, Financial Services, Professional Services, Non-Profit Organization, Government
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