Lead React Developer

This a Full Time position is hybrid São Paulo, Brazil working with US clients. We offer: Salary R$20,000 gross monthly 3 days on site / 2 days at home Vale Refeição / Alimentação R$ 992,00 Plano de Saúde Bradesco ( Descontos Sujeito a Alteração) Plano Odontológico Bradesco Seguro de Vida Auxílio Creche Required Qualifications: Strong proficiency in ReactJS and its ecosystem (Hooks, Context API, Redux, etc.). Excellent command of JavaScript (ES6) and TypeScript . Solid understanding of HTML5 , CSS3 , SASS/LESS , and responsive design principles. Experience with frontend build tools such as Webpack, Babel, Vite, or similar. Familiarity with RESTful APIs , GraphQL , and frontend integration patterns. Hands-on experience with unit testing frameworks (Jest, React Testing Library, Cypress). Strong understanding of frontend performance optimization techniques. Excellent problem-solving and leadership skills. Effective communication skills in English and Portuguese (both written and verbal).