At CI\&T, we help large enterprises transform the potential of AI into real business impact with AI Deployment, AI\-native execution, and tech\-integrated business solutions. With 30 years of experience in technological transformation, we accelerate innovation with expertise in Agentic SDLC, Application modernization, Data \& AI, Martech and Business strategy. We are 8,000 CI\&Ters across more than 25 countries, collaborating to build solutions with real impact. AI is already part of how we work, evolve, and innovate every day. We are seeking an experienced **Senior React Developer** to join a fast\-paced, high\-impact global team. In this role, you will lead front\-end development initiatives for an international client, building scalable, modern, and high\-performance web applications. Because you will work directly with distributed cross\-functional teams around the world, **good English communication skills** and a collaborative mindset are critical to your success. ### **Key Responsibilities** * Architect, develop, and maintain high\-quality, responsive front\-end applications using **React 18** and modern JavaScript. * Design and manage application state using **Redux** and leverage modern build tools like **Vite** for optimized performance. * Collaborate closely with Product Managers, Designers, and Backend Engineers across international teams to turn complex requirements into smooth user experiences. * Champion clean code, component\-driven design, accessibility, and performance optimization. * Actively participate in Agile ceremonies, technical discussions, and code reviews, providing mentorship to team members. ### **Required Qualifications** * **Seniority \& Experience:** 5\+ years of software development experience with a strong focus on modern front\-end technologies. * **Core Technical Stack:** + Hands\-on expertise with **React 18** and modern **JavaScript (ES6\+)**. + State management proficiency using **Redux** (or Redux Toolkit). + Build tools experience with **Vite**. + Solid foundations in **HTML5** and **CSS3** (responsive design, modern layouts, styling frameworks). * **Communication \& Idiom:** **Advanced/Fluent English** (written and spoken) with the confidence to articulate technical concepts clearly to non\-technical and international stakeholders. ### **Nice to Have:** * Experience with TypeScript, Next.js, or testing libraries (Jest, React Testing Library). * Familiarity with CI/CD pipelines, automated deployments, and cloud platforms (AWS, Azure, GCP). * Prior experience in distributed, multicultural remote environments. **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.** *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.