Job Summary: Develop and enhance front-end applications using React, focusing on architecture, responsive interface creation, and API integration—ensuring quality and collaboration. Key Highlights: 1. Front-end development with React and its ecosystem 2. Front-end architecture design and coding best practices 3. Creation of responsive and UX/UI-oriented interfaces Develop and enhance front-end applications using React and its ecosystem; Participate in front-end architecture definition and implementation of coding best practices; Create responsive, accessible, and user experience (UX/UI)-oriented interfaces; Integrate applications with REST and/or GraphQL APIs; Ensure code quality through testing, code reviews, and version control; Collaborate closely with designers, back-end developers, and stakeholders; Provide technical support to less experienced developers. Requirements: Solid experience as a Senior Front-End Developer Proficiency in JavaScript (ES6+), HTML5, and CSS3 Strong hands-on experience with React (Hooks, Context API, functional components) Knowledge of state management solutions (Redux, Zustand, React Query, or similar) Experience consuming REST APIs Familiarity with version control (Git) Understanding of best practices for performance, accessibility, and SEO * On-site presence required once per week (currently at the client’s location in the Cidade Monções neighborhood; starting from April, the client will likely relocate to Alphaville).