Lead architecture of an offline-first Flutter app for the Carbon-Adjust® Clearing Platform, a real-time energy marketplace connecting households and businesses to grid-balancing opportunities. Engineered resilient real-time communication with WebSockets and MQTT, optimized for low-bandwidth and unstable 2G/3G networks, and integrated IoT device registration and energy-flexibility scheduling. Implemented offline-first persistence with SQLite and Hive, including background sync, conflict resolution, and reconciliation on reconnect, with state managed via Riverpod and BLoC. Built secure API layers with Dio (token refresh, retry, failure handling) and owned CI/CD across Fastlane, Codemagic, and GitHub Actions.

Led development of a next-generation social-commerce platform combining e-commerce, real-time interaction, and AI-driven shopping, built with React Native and Go. Integrated AI features such as personalized recommendations, smart search, and voice interactions localized for Igbo, Hausa, Yoruba, and Pidgin, alongside AR-based product previews. Designed high-performance API integrations optimized for low-bandwidth devices, cutting load times and data consumption while lifting engagement, on a modular clean-architecture codebase.

Led mobile engineering for MotoBills and MotoPay (bill-payment and merchant fintech) and Plenti (e-commerce), shipping production-grade Flutter applications. Architected secure wallet, transaction, and payment pipelines integrated with Java, PHP, and Laravel backends, and built real-time transaction monitoring, webhook handling, and error-recovery systems. Integrated third-party payments, KYC identity verification, notifications, and analytics, achieving high crash-free rates and production stability for financial operations.

Led end-to-end React Native development of a telemedicine platform spanning teleconsultation booking, e-prescriptions, lab management, medication scheduling, and IoT health-device integration. Built secure infrastructure with Firebase and RESTful APIs covering authentication, role-based access control, and encrypted data flows, meeting healthcare-grade security standards. Designed a modular, scalable architecture and optimized real-time synchronization between mobile, backend, and IoT devices.

Architected and led mobile engineering for an enterprise real-time teleconsultation platform using Swift and Go, supporting 20,000+ active users. Integrated IoT health-tracking with secure PostgreSQL databases and built real-time video-consultation workflows between clinicians and patients. Implemented CI/CD via GitHub Actions and Firebase App Distribution, reducing deployment time by 40% and sustaining a 99.5% crash-free rate and 4.7+ App Store rating.

Built and shipped 8+ cross-platform applications (Swift, Go, MongoDB) plus backend services supporting high-concurrency, real-time interactions. Co-developed a proprietary analytics SDK adopted across 5 production projects, improving user engagement by 35%, and delivered push-notification systems for tournaments, live events, and social features.