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Senior Mobile Developer (IoT & React Native Specialist) at Flatgigs. We are seeking a high-calibre Senior Mobile Developer to lead the development of our next-generation IoT ecosystem. In this role, you won't just be building apps; you will be architecting the bridge between physical hardware and digital user experiences. . You will be responsible for designing and developing high-performance, cross-platform applications from the ground up, ensuring seamless low-latency communication with IoT devices via BLE, Wi-Fi, and MQTT. The ideal candidate thrives on solving complex hardware-software synchronization challenges and is passionate about building "offline-first" resilient architectures. .  . Key Responsibilities . End-to-End Development: Architect, develop, and maintain robust React Native applications for iOS and Android from initial concept to App Store/Play Store deployment. . Hardware Integration: Implement and optimize communication protocols between mobile devices and IoT hardware (provisioning, pairing, and real-time telemetry). . Native Bridge Engineering: Write custom Native Modules (Java/Kotlin/Swift/Objective-C) when necessary to access low-level hardware features that standard React Native libraries cannot reach. . State & Data Management: Build sophisticated "offline-first" capabilities, ensuring data integrity when devices are disconnected from the cloud. . Performance Optimization: Minimize battery consumption and memory usage, specifically during continuous background hardware scanning and data streaming. . Security Orchestration: Implement end-to-end encryption for device-to-mobile and mobile-to-cloud communication. .  . Technical Requirements & Skillsets . Core Mobile Expertise . Frameworks: Mastery of React Native and its ecosystem (Hooks, Context API, Fabric Architecture). . Languages: Strong proficiency in TypeScript/JavaScript, with the ability to write/debug Swift/Objective-C and Java/Kotlin. . State Management: Expertise in Redux Toolkit, Zustand, or MobX for handling complex asynchronous hardware states. . IoT & Connectivity Stack . Protocols: Deep experience with Bluetooth Low Energy (BLE) (specifically the react-native-ble-plx or react-native-ble-manager libraries). . Networking: Experience with MQTT, WebSockets, and gRPC for real-time bi-directional communication. . Device Onboarding: Proven ability to implement Wi-Fi Provisioning (SoftAP, SmartConfig) and NFC pairing flows. . Backend & Infrastructure . API Integration: Expert-level knowledge of RESTful APIs and GraphQL. . Storage: Experience with local persistence using WatermelonDB, SQLite, or Realm. . DevOps: Full ownership of the CI/CD pipeline for mobile (Fastlane, Bitrise, or GitHub Actions). .  . Education: Bachelor’s or Master’s degree in Computer Science, Electrical Engineering, or a related field. . Experience: 5+ years in Professional Mobile Development, with at least 2+ years specifically focused on IoT-integrated products. . Product Portfolio: A proven track record of shipping at least 2-3 production-grade IoT apps currently available in stores. . Problem Solving: Strong understanding of concurrency, multi-threading, and hardware latency issues. . Bonus Points For: . Experience with AWS IoT Core or Google Cloud IoT. . Familiarity with C/C++ or firmware development concepts. . Knowledge of Matter or Thread protocols. . Company Location: United Arab Emirates.