Leonardo Vinicius de Assunção Sousa Filho

• Actively engaged in mobile application development for major financial institutions such as Santander, Modal Bank, Unicred, Warren, and global companies like Talent.com, leveraging cutting-edge technologies to deliver high-quality solutions.
• Consistently applied modern Android development frameworks and patterns including Android Compose, MVVM (Model-View-ViewModel), and Clean Architecture to build scalable, maintainable, and performant applications.
• Played a key role in technical decision-making involving architecture design, technology stack selection, and defining development best practices and processes.

Unicred

• Developed end-to-end insurance workflows within the mobile app, including the Home Insurance feature, using Android Compose, MVVM, and Clean Architecture principles.
• Delivered modular, testable, and maintainable components aligned with modern Android standards.

Banco Santander

• Contributed to multiple apps, notably the Wono app, implementing robust app architecture with integration of Android Jetpack components such as ViewModel, LiveData, Navigation, and Room.
• Delivered critical features including card management, ensuring seamless performance and usability.

Talent.com

• Led the full-cycle development of the mobile app from scratch, transitioning the platform from web-only to mobile using Kotlin, Android Jetpack, and RESTful APIs.
• Developed core features like job search, saving, and application management with a focus on responsiveness and UX.

Warren

• Collaborated on the implementation of foreign exchange and international investment features, utilizing secure backend integrations with GraphQL and REST APIs.
• Enabled global portfolio diversification with reliable, user-friendly interfaces built with Android Compose and modern architectural patterns.

• Experienced in mobile application development using Java and Kotlin, delivering performant and user-friendly Android apps.
• Skilled in web development with Angular (versions 4 to 7), HTML5, CSS3, PHP, and Laravel, focusing on clean and maintainable code.
• Proficient in UX/UI design and creation of responsive layouts to enhance user experience across devices.
• Experienced in designing and developing RESTful APIs using Node.js and Java for efficient backend communication.
• Hands-on experience with relational databases (MySQL, PostgreSQL) and NoSQL databases (MongoDB).
• Implemented GraphQL for flexible and efficient data querying.

• Contributed to the development of source code and creation of unit tests for customizations within the Cúram solution using Java, ensuring robust and scalable enhancements.
• Implemented Use Cases and defined Interface Specifications to translate requirements clearly and ensure seamless integration with existing systems.

• Developed websites from layout design to deployment, ensuring functionality and user experience met client expectations.
• Participated in the ideation, development, and implementation of IVR (Interactive Voice Response) systems, optimizing customer interaction and automating service flows.
• Contributed to system approval and testing processes, validating performance, usability, and stability prior to production release.

• Provided customer consultancy via telephone, identifying needs and recommending tailored IT solutions.
• Managed sales and support of IT equipment, including Powercenter systems, microcomputers, servers, and notebooks.
• Assisted in event promotion and communication to increase visibility and engagement.

• Provided technical support to internal users, ensuring smooth operation of IT infrastructure and daily systems.
• Assembled, configured, and maintained workstations; installed and configured network printers and shared resources.
• Installed and set up various software, including Microsoft Office suite and web browsers; configured and troubleshooted local computer networks.
• Created customized spreadsheets and reports to improve operational efficiency.
• Participated in homologation and testing processes to validate system and software performance before deployment.