




Job Summary: Professional to develop and maintain mobile applications in Xamarin, Java, and Flutter, ensuring quality and integration with corporate systems. Key Highlights: 1. Strong culture and attractive environment 2. Mobile application development (Xamarin, Java, Flutter) 3. Team collaboration and use of agile methodologies People are our greatest differentiator, directly contributing to the development of our companies. We are the sum of over 32,000 committed and dedicated collaborators who take pride in their work and are always at the service of our customers. With a strong culture, we offer an attractive and engagement-friendly environment, investing in benefits and providing development programs—extended even to family members. We are a diverse company that promotes diversity across all positions, regardless of gender, sexual orientation, race, religion, or disability. **Responsibilities and Duties** **Responsibilities and Duties** **Software Development** * Create and maintain mobile applications in **Xamarin**, **Java**, and **Flutter**. * Implement new features and enhance existing ones. * Develop integrations with REST APIs and backend services. **Code Maintenance** * Fix bugs and issues reported by users. * Update and optimize legacy code in **Xamarin** and **Java**. * Improve performance and compatibility across Android versions. **Integration and Architecture** * Integrate applications with **RESTful services** and other corporate systems. * Apply design patterns (MVVM, Clean Architecture) and mobile development best practices. * Collaborate on migration and modernization of legacy solutions. **Testing and Quality** * Write and execute **unit tests** and **UI tests**. * Ensure application stability and performance. * Use monitoring and debugging tools (e.g., AppCenter, Logcat, Android Studio Profiler). **Documentation and Collaboration** * Document code, APIs, and technical processes. * Participate in **agile meetings (SCRUM)** and code reviews. * Collaborate with backend, UI/UX, and QA teams. **Support and Training** * Support internal users and partner teams during releases and testing. * Provide technical support and production issue diagnostics. **Requirements and Qualifications** **Mandatory** * Solid knowledge of Xamarin.Forms / Xamarin.Android * Experience with Java (native Android) * Experience with Flutter / Dart * Knowledge of RESTful API integration * Experience with GIT * Best practices in Clean Architecture and MVVM * Knowledge of Unit Testing (NUnit, JUnit, Flutter Test) * Familiarity with mobile CI/CD (AppCenter, GitHub Actions, etc.) **Additional Information** * 100% Remote * 14-month project * Contract type: PJ **Vamos** is a unique ecosystem offering alternatives for renewing and expanding fleets of new and used trucks, machinery, and equipment. Accordingly, we build our business daily upon two pillars: renewal and innovation—always striving to improve our customers’ performance and increase their profitability. **Vamos Locação** is the market leader in heavy vehicle leasing and possesses extensive expertise in asset management. Our portfolio of vehicles and equipment allows leasing solutions to be tailored to each customer’s demand. Additionally, Vamos offers a range of services—including maintenance, Vamos Controle telematics solution, and Vamos Carbono Zero, which neutralizes emissions from leased assets. All this enables not only improved operational capacity for our customers but also cost savings of up to 30% compared to vehicle acquisition. Through **Vamos Seminovos**, we operate in the purchase and sale of ready-to-deliver used trucks, machinery, and equipment—thoroughly inspected, backed by provenance guarantees and facilitated credit. Moreover, 90% of Vamos’ used vehicles have had only one owner and are less than seven years old. It’s more than just used—it’s always new! With transparency and simplicity, we lease, sell, buy, and exchange new and used trucks, machinery, and equipment—and continuously enhance our service, delivering agility, security, and cutting-edge technology to foster our customers’ ongoing development. We are a diverse company that promotes diversity across all positions, regardless of gender, sexual orientation, race, religion, or disability.


