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 looking for a Senior Full Stack Developer to join our team and play a key role in designing, developing, and evolving high-complexity software solutions. This position requires strong expertise across both frontend and backend development, with a particular focus on Java and React. You will contribute to technical decision-making, system architecture, and the adoption of engineering best practices while collaborating with cross-functional teams to deliver scalable and high-quality solutions. REQUIREMENTS * Extensive experience in Full Stack Software Development. * Strong backend development experience using Java. * Solid experience building modern frontend applications with React. * Proven experience designing and developing REST APIs and microservices architectures. * Experience working with relational databases, particularly PostgreSQL. * Experience integrating with legacy systems and enterprise applications. * Hands-on experience with Azure and/or OpenShift environments. * Knowledge of DevOps practices, CI/CD pipelines, and software delivery automation. * Strong understanding of software architecture, design patterns, and engineering best practices. * Advanced English level for daily communication. NICE TO HAVE * Experience with additional backend technologies such as Node.js or Python. * Experience designing and implementing distributed systems. * Knowledge of AI-driven automation solutions and workflow optimization. * Previous experience acting as a technical lead, mentor, or technical reference for development teams. * Active participation in technical communities, conferences, or knowledge-sharing initiatives. #LI-GP1 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.