Job Summary: We are seeking a Senior Mobile Android Developer to lead complex software projects—from architecture to execution—collaborating with international teams in a robust, product-oriented technical environment. Key Highlights: 1. Strategic and highly visible role 2. Modern engineering culture 3. Career development and growth plan **About Coderio** Coderio designs and delivers scalable digital solutions for global enterprises. With a strong technical foundation and a product-oriented mindset, our teams lead complex software projects from architecture through execution. We value autonomy, clear communication, and technical excellence. We collaborate closely with international teams and partners, building technology that makes an impact. Learn more: http://coderio.com We are looking for a **Senior Mobile Android Developer** with experience in **Java or Kotlin**, expertise in **geolocation and BLE scanning**, and general knowledge of **AWS services**, to join a technically focused team driving digital transformation. Must reside in Argentina, Chile, or Paraguay. **What You Can Expect from This Role (Responsibilities)** Develop and maintain an app ensuring stability, performance, and a seamless user experience. Implement native functionalities in Java/Kotlin, including Geolocation, BLE scanning, and IoT device connectivity. Integrate the application with APIs and cloud services provided by the backend team. Participate in developing offline/online workflows and efficient local state management. Implement push notifications, connectivity event monitoring, and management. Collaborate with backend, QA, and IoT teams to define technical requirements and validate integrations. Apply development best practices, unit testing, and quality assurance for every delivery. **Requirements** Minimum 3 years of experience developing Android mobile applications using Java or Kotlin. Proven experience with Geolocation (GPS, Fused Location, Maps). Proven experience with BLE (Bluetooth Low Energy) on Android. Solid knowledge of AWS services (e.g., Cognito, AppSync, DynamoDB, S3). Experience consuming REST and/or GraphQL APIs. Strong knowledge of mobile testing. Experience with architectural patterns (MVVM / MVI). Knowledge of dependency management in Android projects. Must reside in Argentina, Chile, or Paraguay. **Nice-to-Have** Ability to work collaboratively and communicate effectively in agile environments. Prior experience with B2B or IoT connectivity applications. Knowledge of React Native or hybrid module integration. Experience with offline-first architectures and local data handling. Basic knowledge of CI/CD (GitHub Actions, Bitrise, or similar). **Benefits** 100% remote work Long-term commitment, with autonomy and impact Strategic and highly visible role within a modern engineering culture Collaborative international team and strong technical leadership Career development and growth opportunities within Coderio **Why Join Coderio?** At Coderio, we value talent regardless of location. We are a remote-first company passionate about technology, collaborative work, and fair compensation. We offer an inclusive, challenging environment with real growth opportunities. If you’re motivated to build impactful solutions, we’re waiting for you. Apply now. We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.