**Send updated CV to mayra@rehva.com.br and vitor@rehva.com.br** **Job Description** We are looking for a Senior Frontend Developer with strong technical expertise and sensitivity to UX/UI and interface design, who enjoys rolling up their sleeves and working in a collaborative environment to help evolve our products and expand the impact of healthcare in Brazil. **Responsibilities and Duties** Develop and enhance modern, performant, and scalable web interfaces, with a focus on usability and user experience; Work closely with Product Managers to define user flows, interfaces, and UX/UI solutions; Collaborate on defining and evolving visual standards, reusable components, and frontend best practices; Integrate frontend applications with GraphQL APIs using Apollo; Contribute to code quality, frontend architecture, and engineering best practices; Support and mentor other developers on the team when needed. **Requirements** Proven experience as a Frontend Developer working on complex web applications; Solid experience with React and JavaScript; Experience with HTML, CSS/Sass, and building responsive interfaces; Practical knowledge of GraphQL/Apollo; Experience using Figma, Whimsical, or similar tools for collaboration on workflows and prototypes; Strong understanding of UX/UI principles, usability, and interface design; Ability to collaborate effectively with product and technology teams in agile environments. **Nice-to-Have** Experience with TypeScript; Experience with UI libraries and frameworks such as Ant Design, Shadcn, or Tailwind CSS; Experience with authentication and authorization systems like Keycloak; Experience with frontend testing (React Testing Library, Cypress); Familiarity with modern build tools such as Vite; Previous experience contributing to design systems or component libraries; Strong background or interest in product design, UX, or UI—even if informal; Prior backend experience, especially with Node.js, including API development, integrations, or full-stack architecture understanding. **Format** 100% remote work Contract type: PJ