Focused on front-end development for a new system, utilizing React.js to build and enhance the user interface. Employed Cypress for end-to-end testing to ensure a seamless and high-quality user experience. Worked on the taxpayer assistance app using Expo, and contributed to the development of "Balcão Virtual," a system for taxpayer assistance with integrated Jitsi video calls. Collaborated with the back-end team using Ruby on Rails for API development, integrating the front-end with robust and scalable back-end services.Technologies:- React.js: Used for developing dynamic and interactive user interfaces.- Cypress: Implemented for end-to-end testing, ensuring application reliability and performance.- Ruby on Rails: Utilized for API development to support front-end functionality.- Expo: Used for developing the taxpayer assistance app.- Jitsi: Integrated for video calls in the "Balcão Virtual" system.

Contributed to the development and maintenance of web systems and mobile apps for Android and iOS, supporting various government agencies in Ceará. Played a key role in delivering secure, scalable solutions that improved internal processes and public service efficiency.Technologies:- Ruby on Rails: Used to develop web systems, ensuring reliable back-end functionality and seamless data management. Employed RSpec for testing, Jenkins for continuous integration, and Sidekiq for background job processing.- React Native: Created mobile versions integrated with these web systems, offering a consistent user experience across Android and iOS.

Worked on the development of a metro route tracking application integrated with Google Maps using React Native. Designed and implemented features to enable users to efficiently plan their routes and view real-time information. Configured Google Maps to display metro schedules and lines for the Metrofor, enhancing the app’s functionality and user experience.Technologies:- React Native: Utilized to build a cross-platform mobile application for seamless user interaction.- Google Maps API: Integrated to provide real-time metro schedules and line information.

Developed a financial management system for over 60 municipalities in the Northeast of Brazil using GeneXus. Played a key role in migrating the system to Ruby on Rails, ensuring a modern, scalable, and efficient technology stack. Contributed to improving financial processes and data management across multiple municipalities.Technologies:- GeneXus: Utilized for initial development and maintenance of the financial management system.- Ruby on Rails: Employed in the migration process to modernize and enhance the system's functionality.