Job Summary: We are seeking a Flutter developer to work on mobile application development, from architectural design to implementation of new features. Key Highlights: 1. End-to-end Flutter (Dart) mobile application development 2. Focus on performance and integration of optical readers and RFID 3. Collaboration with backend team to design efficient APIs Job Description for Flutter Developer (Mobile) Must reside in São Paulo, with interest in onsite or hybrid roles [4 days onsite, 1 day remote]. ***Salary expectation is mandatory We seek a developer with solid expertise in **Flutter**, to work on mobile application development—from architectural design through implementation of new features and integration with optical readers and RFID. **Key Responsibilities** * Develop and maintain mobile application features using **Flutter (Dart)**. * Ensure app performance for processing large volumes of data. * Implement **local persistence** solutions (offline database) and synchronization with the server. * Optimize integration with barcode scanners, QR code readers, and sensors (RFID). * Collaborate with the backend team to define efficient API contracts. * Develop for Android and iOS **Technical Requirements** * **Flutter Dart:** Full proficiency in the language and framework. * **State Management:** Experience with **Bloc**, **Provider**, or **Signals**. * **Mobile Database:** Advanced knowledge * **API Consumption:** Experience integrating REST/JSON APIs. * **TFS:** Version control. **Preferred Qualifications** + Experience with Agile methodologies (Scrum/Kanban). + Knowledge of app publishing processes (App Store and Google Play). + Prior experience with logistics, inventory, or ERP systems.