The Frontend Engineer II is responsible for developing and implementing user interfaces for web applications, ensuring an intuitive and efficient user experience. This professional works on medium-complexity projects, collaborating with multidisciplinary teams and using modern technologies to build responsive and interactive interfaces. * Develop responsive and interactive user interfaces using HTML, CSS, and JavaScript * Collaborate with designers and backend developers in implementing features and integrating APIs * Conduct usability testing and performance optimization of developed interfaces * Participate in planning meetings and code reviews to ensure quality and adherence to project requirements * Stay up-to-date with frontend development trends and best practices * Document developed code and contribute to the continuous improvement of development processes * Identify and propose solutions for potential technical or usability issues in interfaces * Support the training of junior developers and interns by sharing knowledge and best practices **Experience with:** * JS, React.js, Next.js, TypeScript; * Context API, Redux; * Jest, React Testing Library, and Cypress; * REST, GraphQL. **Preferred qualifications, experience with:** * DevOps (Linux terminal usage, Docker containers, automated build and deployment processes, monitoring); * Unit and integration testing methodologies; * Familiarity with software engineering best practices; * Basic knowledge of cloud infrastructure on AWS or equivalent; * Intermediate English.