As a Senior Frontend Engineer at Pagarbook with 6+ years of experience truly into Web Development, I develop and improve the user interface and experience for SME merchants, using React.js, Javascript, TypeScript, and other technologies. I collaborate with cross-functional teams to understand user requirements and translate them into visually appealing and functional solutions. I also contribute to the architecture, design, and development of key features and functionalities, optimize frontend components, and provide technical leadership and mentorship to junior engineers.