Senior Flutter Developer

Company DescriptionVestek Consulting is looking for an experienced Mobile APP Developer to rebuild a neurofeedback meditation application using Flutter. The APP connects to an EEG headset via Bluetooth Low Energy (BLE). The application uses real-time brainwave data to drive interactive visual scenes.The goal is to translate legacy logic into a high-performance, modern Flutter application that is accessible, responsive, and medically compliant.. We are committed to delivering high-quality, impactful, and user-centered products.Role DescriptionThis is a contractor job in Bay Area, N. CA for a Senior Flutter Developer. The Senior Flutter Developer will be responsible for developing, testing, and maintaining high-performance mobile applications using the Flutter framework. The role involves working closely with cross-functional teams, writing efficient and reusable code, and ensuring the scalability and maintainability of applications. Additionally, the Senior Flutter Developer will contribute to architectural decisions, troubleshoot and debug issues.QualificationsKnowledge of Flutter & Dart (3+ years): Deep expertise in custom animations, Tickers, and AnimationControllers.Hardware Integration: Proven experience with Bluetooth Low Energy (BLE) in Flutter. Must understand MTU sizes, UART Service UUIDs, and connection life-cyclesLow-Level Data Handling: Ability to work with Uint8List, bitwise operators, and manual packet parsing (bypassing 3rd-party SDKs).State Management: Experience with Riverpod or BLoC.Architecture: Mastery of Dart Isolates and asynchronous programming.UI/UX: Experience with fl_chart for real-time time-series data and WCAG 2.1 accessibility standards.Backend: Experience with Firebase Auth & Firestore for optional cloud sync.Proven ability to write clean, scalable, and maintainable codeExperience with mobile application performance optimization and debuggingExperience launching APP on Apple Store and Google PlayBachelor's degree in Computer Science, Software Engineering, or a related fieldStrong communication and collaboration skills, with a focus on teamwork