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 a Senior Android Developer to design, develop, and maintain high-performance mobile applications using Kotlin and Jetpack Compose. In this role, you will be a champion for technical excellence, writing clean, testable code and implementing robust unit and instrumentation tests to ensure the highest standards of quality. You will collaborate closely with a cross-functional team on scalable architectures aligned with platform standards, while driving a mature Continuous Delivery culture to ensure reliable, automated deployments. As a senior member of our agile squad, you will actively participate in technical refinements, code reviews, and effort estimations, using your strong communication skills to mentor peers and continuously optimize our development processes. \n Key Responsibilities: Design, develop, and maintain modern Android applications using Kotlin and Jetpack Compose. Promote coding excellence by writing clean, maintainable, and testable code. Contribute to a culture of Continuous Delivery, ensuring regular, reliable, and automated deployments. Implement unit and instrumentation tests to maintain high levels of quality assurance. Collaborate on scalable and robust architecture and design solutions aligned with platform standards. Actively participate in agile ceremonies, code reviews, technical refinement, and effort estimation. Drive improvements in the development process, suggesting best practices and optimisation strategies. Work effectively in a cross-functional team, strong communication skills and a collaborative mindset. Required Skills and Qualifications: Proven experience in native Android development with Kotlin.Proficiency in building declarative UI with Jetpack Compose. Strong understanding of Clean Code, SOLID principles, and engineering best practices. Practical experience with CI/CD pipelines in Android environments. Knowledge of testing frameworks such as JUnit, MockK, Espresso, or equivalent. Familiarity with modern architectural patterns like MVVM, MVI, or Clean Architecture. Proficient with Git and collaborative version control workflows. Excellent teamwork and communication skills with the ability to work autonomously when needed. Nice-to-have Skills: Experience with Kotlin Multiplatform Mobile (KMM). Understanding of Coroutines, Flow, and reactive programming. Familiarity with tools such as Detekt, Ktlint, Firebase, GraphQL, or Room. Experience working in agile frameworks (Scrum, Kanban, SAFe). Contributions to tech communities, conferences, or open-source projects. \nOur 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.