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 a skilled Senior Android Developer to join our team for a 100% Mobile Development role.   In this position, you will create engaging, creative user experiences by leveraging your extensive knowledge of the Android development platform. You will own the development lifecycle of complex applications from top to bottom, including user interface design, application architecture, robust implementation, thorough documentation, unit and functional testing, and customer deployment. A critical focus of your role will be implementing and modifying application features with a strong emphasis on accessibility, while continuously optimizing the size, performance, and reliability of our mobile applications and frameworks. Beyond development, you will accurately estimate design and testing timelines, assist in the design and generation of automated test suites, and support existing production applications by quickly and accurately troubleshooting critical issues. JOB REQUIREMENTS: Experience & Education: * 8+ years of proven experience in high-quality software development. * Bachelor’s degree (BS) in Computer Science, or an equivalent technical field. * Core Android Expertise: * Expert-level knowledge of the Android platform, its core UI frameworks, ecosystem, and mobile development tools. * Senior-level mastery of Kotlin and extensive, demonstrated experience building with Jetpack Compose. * Expert-level capability in designing and implementing clean, highly effective, and responsive user interfaces. * Architecture & Software Engineering: * Strong foundation in Object-Oriented Programming (OOP), modularization, solid design patterns, and robust mobile architecture. * Solid experience with asynchronous and multi-threaded programming, as well as mobile networking protocols. * Tech Stack & Tools: * Hands-on experience with Modularization and Micro Frontends (MFE). * Proficiency with GraphQL for data fetching and API communication. * Familiarity with DevOps workflows, including CI/CD pipelines via Jenkins and version control with GitHub. * Leadership & Soft Skills: * Strong leadership, mentorship, and presentation skills. * Excellent problem-solving capabilities, critical thinking, and communication skills. * A proactive attitude with a strong ability and desire to learn new technologies and take on fresh challenges. 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.