[Job-28961] AI Android Engineer (Senior)

We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions. With over 8,000 CI&Ters around the world, we’ve built partnerships with more than 1,000 clients during our 30 years of history. Artificial Intelligence is our reality. Note: This is a hybrid position (1 a week on-site in Campinas/SP) We are seeking a highly skilled Android Developer to join our software engineering team and contribute to the development of a mobile application that interfaces with a globally distributed IoT ecosystem. This role focuses on building high-performance, reliable Android applications that communicate with cloud services (AWS) and edge devices, with an emphasis on concurrency, networking, and scalable software architecture. RESPONSIBILITIES : - Design and develop high-quality Android applications with a focus on performance, scalability, and reliability. - Implement robust multi-threading and concurrency solutions to handle real-time data processing and device communication. - Build and maintain efficient communication layers between mobile clients, IoT devices, and cloud services. - Collaborate with backend, product, and hardware teams to deliver seamless end-to-end user experiences. - Create and maintain technical documentation, including architecture diagrams, API contracts, and system workflows. - Optimize application performance, memory usage, and network efficiency. - Troubleshoot and resolve complex issues across mobile, network, and cloud layers. - Stay current with Android platform changes, modern development practices, and emerging technologies (including AI-assisted development). REQUIREMENTS: - Experience or interest in leveraging AI tools (e.g., GitHub Copilot, Cursor, LLM-based workflows) to improve development efficiency. - Develop native Android applications using Kotlin, following modern Android architecture practices. - Strong experience with multi-threading and concurrency in Android (e.g., Coroutines, Flow, RxJava, thread management). - Deep understanding of Android app architecture (MVVM, Clean Architecture, modularization). - Experience integrating with RESTful APIs and handling asynchronous data flows. - Experience with AWS services (e.g., API Gateway, Lambda, DynamoDB, IoT Core or similar cloud services). - Understanding of networking concepts, including: - HTTP/HTTPS, TCP/IP - Network debugging and performance tuning - Basic infrastructure knowledge (routers, switches, DHCP, local network configuration) - Experience building applications that interact with connected devices / IoT systems is a strong plus. - Write clean, maintainable, and well-documented code. - Participate in code reviews and contribute to engineering best practices. - Collaborate in an Agile environment to deliver high-quality features. QUALIFICATIONS: - Strong problem-solving skills, especially in debugging cross-layer issues - Proficiency in English for effective collaboration in a global team. - Proven experience as an Android Developer, with shipped applications. - Strong foundation in software design patterns and system architecture. - Hands-on experience with cloud-integrated mobile applications (AWS preferred). - Experience with real-time data, streaming, or device communication is a plus. - Familiarity with IoT ecosystems or embedded systems is highly desirable. If you like it, just apply and good luck! 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.