Who is Gustavo Villeth?

Currently working at NTT DATA Europe & Latam, contributing to the development of large-scale banking mobile applications using React Native and JavaScript. I participate in all stages of the software development lifecycle, from designing and implementing new features to application delivery and maintenance, ensuring high standards of quality, performance, and reliability.

Previously at TCDF (Federal District Court of Accounts), I worked on internal applications using Power Apps (Canvas Apps), integrating SharePoint data and automating workflows with Power Automate. The goal was to reduce manual work, organize information, and deliver solutions that improve day-to-day operations. I also built a few Python automations for specific tasks.

Previously at Walkr App, I worked with React and React Native (Expo), creating new screens, refactoring layouts, building reusable components, integrating APIs, and following the product Design System and UI/UX best practices.

Beyond hands-on development, I built a solid foundation in Software Engineering, covering architecture fundamentals, testing, and teamwork — always with a product mindset: understand the problem, propose a solution, and follow through to delivery.

Right now, I’m focused on

• Full Stack and mobile application development, contributing to the creation, enhancement, and maintenance of solutions using React and React Native.
• Backend development with Node.js;
• Solution architecture and clean code organization within teams;
• System integration and automation.