- Led the technical development of innovative solutions for the music industry- Managed a multidisciplinary team of engineers and developers- Architected and developed mobile applications using React Native- Built responsive web applications with React- Implemented blockchain technology for payments and transactions using Algorand- Developed scalable backend services in Node.js with Serverless architecture (AWS Lambda)- Integrated various AWS services, including:* Lambda for on-demand function execution* S3 for file storage* API Gateway for managing REST APIs* EC2 for elastic compute instances* DynamoDB for scalable NoSQL database management* SNS and SQS for message queuing and notifications- Managed and optimized MongoDB for data storage- Adopted DevOps practices and automated cloud infrastructure using AWS

- Developed a mobile application focused on preparing candidates for military career exams using React Native and Expo- Implemented features for users to access exam materials, practice tests, and track progress across multiple devices- Integrated push notifications to keep users informed about exam updates, new content releases, and personalized reminders- Designed a smooth, responsive user interface optimized for both Android and iOS platforms.- Worked closely with the content team to ensure accurate and up-to-date exam resources were available in the app- Enhanced user engagement and retention through personalized notifications and performance tracking- Ensured app performance and stability through continuous testing and improvements

- Developed cross-platform mobile applications using React Native and Expo.- Implemented real-time push notifications to improve user engagement.- Automated the build, testing, and deployment process of mobile applications using GitHub Actions.- Streamlined the app release process by setting up automated workflows for both iOS and Android platforms.- Integrated third-party services for seamless push notification delivery and management.- Collaborated with product and design teams to ensure a smooth, high-performance user experience across devices.- Ensured code quality and consistency through continuous integration and testing pipelines.

Development of the Sufoco App: Mapping Crowd Levels in Public TransportationObjective: Create a tool to map and alert about crowding and congestion situations in public transportation within the São Paulo metropolitan area (RMSP).Context: Designed to address the longstanding issue of crowding, exacerbated by the COVID-19 pandemic.App Functionality:- Allows passengers to send real-time crowding alerts.- Each alert includes information such as transportation line, date, time, and level of crowding.- Data is displayed on a digital map accessible via the app and the project's website.Impact: Establishes a collaborative data network to improve understanding of crowding and congestion situations.Team: Project coordinated by Ricardo da Silva (IC/Unifesp - Zona Leste Campus) with contributions from Leonardo Garcez (University of Vale do Itajaí), Tatiana Ashino (Unifesp Zona Leste Campus), and Cintia de Almeida (Unifesp Guarulhos Campus).Availability: App available for download on Android® devices.Results: Partial and final results will be published on the project’s website and through media outlets. Mapping participants remain anonymous.Related news:https://www1.folha.uol.com.br/cotidiano/2020/12/grupo-de-estudos-da-periferia-cria-app-para-medir-lotacao-do-transporte-em-sp-na-pandemia.shtmlhttps://outraspalavras.net/tecnologiaemdisputa/um-aplicativo-para-evitar-a-lotacao-e-o-virus-no-busao/https://www.unifesp.br/component/k2/item/4876-pesquisadores-da-unifesp-criam-aplicativo-de-mapeamento-da-lotacao-nos-transportes-coletivos

- Developed an Android app for internal use and employee management for a sales company- Handled the complete sales and post-sales process within the app for clients like Cielo, Stone, and Mercado Pago- Streamlined the sales workflow, from order placement to customer follow-up, through mobile technology- Implemented real-time data tracking for sales performance and client management- Enhanced communication between sales teams and management for efficient operations- Provided tailored digital solutions to meet the specific needs of the credit card machine sales industry

- Integrated real-time data tracking and employee performance monitoring through the Android app- Streamlined the communication between field workers and management using mobile technology- Improved internal communication and task delegation with automated features in the app- Provided ongoing technical support and updates to maintain system reliability and performance

- Assistance in the development of team projects, using PHP technology, use of PHP development frameworks Symfony 2 and Zend;- Use of the Git distributed version control system;- Assist in updating documentation of projects and processes;- Participation in project monitoring meetings;- Preparation of activity reports and estimates;

- Development of interactive educational games for textbooks using HTML5, CSS, and JavaScript- Game development expertise with the Construct 2 game engine- Contribution to the creation of a school platform using PHP- Focused on building engaging and accessible digital learning solutions