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.

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:

- 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.
- Solid experience with AWS services (e.g., API Gateway, Lambda, DynamoDB, IoT Core or similar cloud services).
- Strong 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.

- Experience or interest in leveraging AI tools (e.g., GitHub Copilot, Cursor, LLM-based workflows) to improve development efficiency.

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!

#LI-GV1

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.