João Guilherme Fonseca

I'm part of the mobile team, working with React Native and Expo to improve and scale our apps. My day-to-day includes refactoring code, developing new features, and making sure everything runs smoothly and intuitively for users.

I worked on both web and mobile platforms using React.js and Expo. I also led Proof of Concept initiatives with Flutter to test out new tools and improve our workflows.

I led the migration of a legacy Angular application to a modern React stack using TypeScript and Tailwind CSS. I also built a mobile app with Expo and React Native to enhance user experience and scalability.

As a backend intern, I developed APIs using Node.js and Express, implemented automated tests with Jest, and worked on database integration with Prisma. I also prototyped a real-time chat feature using Socket.io.

I developed a .NET API for a virtual reality research project and continued working in Unity. This role helped me grow in both backend development and game programming.

I joined a virtual reality project where I learned Unity with C#. I focused on UI prototyping and gained hands-on experience in game development and UX design.