Empresa: CI&T
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’re looking for a talented Senior-Master Full-Stack Developer with strong expertise in React and Java (Spring Boot). You’ll play a crucial role in designing, building, and supporting enterprise-scale web applications and microservices that are performant, secure, and user-centric. What You’ll Do: • Design, develop, unit test, and integrate full-stack application components. • Build scalable web applications using React on the frontend and Java 21 / Spring Boot on the backend. • Implement RESTful APIs, microservices, and integrations with enterprise systems. • Collaborate with UX/UI, product, architecture, and QA teams within an Agile environment. • Create and maintain architecture, design, and system documentation. • Ensure code quality, performance, and security, including OAuth2, OIDC, and JWT. • Work with MySQL, Hibernate, Spring Data, and Spring Security. • Support production systems using Kibana and APM tools, and participate in on-call rotation when needed. Demonstrated experience in monitoring and troubleshooting applications is essential. What We’re Looking For: • Solid experience with full-stack development. • Strong hands-on experience with React, modern JavaScript (ES6+), DOM APIs, and JSON. • Proficient in backend development with Java,(including old versions),and Spring Boot; recent hands-on experience is required. • Experience with microservices and enterprise integration patterns. • Solid experience with RDBMS (MySQL or similar) and SQL. • Good understanding of web security standards including JWT, authentication, and other security concepts. • Excellent problem-solving, debugging, and communication skills; • Candidates should demonstrate a structured approach to problem-solving and clarity in communication. • Comfortable working in the EST time zone. • Production support experience, including a strong understanding of application error handling and standard practices. Nice to Have: • Familiarity with micro-frontend architecture and component libraries (e.g., Storybook, styled-components). • Knowledge of event-driven architecture and Kafka; experience is preferred. #LI-TO1 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.