Senior Front-end Developer (React), Brazil

We are **tech transformation** specialists, uniting human expertise with AI to create scalable tech solutions. With over 7\.400 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. At CI\&T, we are seeking a highly skilled and motivated **Senior Front\-end Developer (React)** to join our team in **Brazil** . You will contribute to an innovative project in a collaborative, transforming, and multicultural environment that values creativity, growth, and technology. **Position Overview** As a **Senior Front\-end Developer (React)** , you will play a key role in designing and building dynamic, high\-performance user interfaces. You’ll collaborate with cross\-functional teams to translate design concepts into intuitive, scalable, and efficient web applications. Your work will help deliver cutting\-edge digital experiences aligned with CI\&T’s vision of driving innovation and transformation through technology and AI. **Key Responsibilities** Develop and maintain front\-end components using React. Integrate external APIs to fetch data and perform key application actions. Collaborate closely with designers to implement responsive and user\-friendly interfaces. Ensure the performance, quality, and responsiveness of applications. Participate in code reviews and follow best practices for maintainable, high\-quality code. Write and maintain unit tests to ensure code reliability and stability. Contribute to continuous improvement by sharing knowledge and supporting team collaboration. **Required Skills and Qualifications** **Must\-have Skills:** Proven experience as a React Developer. Strong proficiency with JavaScript and Next.js. Experience with component libraries such as Material\-UI, Ant Design, or similar. Experience integrating and working with external APIs. Familiarity with Git or other version control tools. Proficiency in English (B2\+) for communication and documentation. Excellent problem\-solving skills and attention to detail. **Nice\-to\-have Skills** Familiarity with state management libraries such as Redux or Context API. Experience with TypeScript. Understanding of responsive design principles. Familiarity with CI/CD pipelines and automation tools. **Why Join CI\&T** At CI\&T, we believe in Collaboration, Innovation \& Transformation — values that guide everything we do. Here, your ideas matter, and your code impacts real users around the world. Join us to work with passionate professionals, explore cutting\-edge technologies, and be part of projects powered by Artificial Intelligence and human creativity. Let’s build the future together. **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: https://ciandt.com/br/pt\-br/carreiras 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. 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.****