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!