[Job-28258] Senior Frontend Developer (React) , Brazil at CI&T

We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions. With over 8,000 CI&Ters around the world, we’ve built partnerships with more than 1,000 clients during our 30 years of history. Artificial Intelligence is our reality. We are looking for a Frontend Developer to build modern web interfaces for a cloud-based platform. This role focuses on creating intuitive, accessible, and scalable user interfaces that support complex workflows and enterprise integrations. You will collaborate closely with designers, backend engineers, and product teams to deliver high-quality frontend experiences. **Your Mission Develop modern web interfaces that provide a seamless user experience. Translate product and design requirements into reusable, scalable frontend components. Ensure frontend applications remain performant, accessible, and maintainable. Collaborate with backend engineers to integrate APIs and maintain consistent data contracts. **Key Responsibilities Develop frontend applications using React. Build reusable UI components and maintain consistent design patterns. Integrate frontend features with backend REST APIs. Implement responsive layouts and interactive user experiences. Write frontend tests including unit, component, and end-to-end tests. Ensure accessibility standards and usability best practices are followed. Optimize frontend performance and maintainability. Collaborate with product managers, designers, and backend developers to deliver new features. **Required Qualifications Candidates should have experience with: React JavaScript or TypeScript HTML and CSS Component-based frontend development REST API integration Responsive design principles Frontend testing frameworks Git-based development workflows Additionally, candidates should demonstrate: Understanding of accessibility best practices Ability to build maintainable and scalable UI architectures Strong collaboration and communication skills **Nice to Have Experience with TypeScript in production environments Experience with testing tools such as Jest, Cypress, Playwright, or React Testing Library Experience with design systems or component libraries Experience with API contract-based development (OpenAPI) Experience with cloud-hosted frontend deployments Intermediate or advanced English Our benefits: -Health and dental insurance -Meal and food allowance -Childcare assistance -Extended paternity leave -Partnership with gyms and health and wellness professionals via Wellhub (Gympass) TotalPass; -Profit Sharing and Results Participation (PLR); -Life insurance -Continuous learning platform (CI&T University); -Discount club -Free online platform dedicated to physical, mental, and overall well-being -Pregnancy and responsible parenting course -Partnerships with online learning platforms -Language learning platform And many more! More details about our benefits here: [Upgrade to PRO to see link] At CI&T, inclusion starts at the first contact. If you are a person with a disability, it is important to present your assessment during the selection process. See which data needs to be included in the report by clicking here.This way, we can ensure the support and accommodations that you deserve. If you do not yet have the assessment, don't worry: we can support you in obtaining it. We have a dedicated Health and Well-being team, inclusion specialists, and affinity groups who will be with you at every stage. Count on us to make this journey side by side.