João Guilherme Fonseca

I'm the mobile developer responsible for building the company's app from scratch using Expo and React Native. Working closely with the rest of the team, I'm involved in architecture decisions, feature development, and everything it takes to deliver a solid product from day one.

I was part of the mobile team, working with React Native and Expo to improve and scale our apps. My day-to-day included refactoring code, developing new features, and making sure everything ran 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.