Paul N.

I specialize in building Android and KMM applications that don’t just work—they scale. With 6+ years of experience and a portfolio including fintech platforms with 100,000+ active users, I bridge the gap between complex engineering (C/C++, BFF, Security) and business growth. Whether you're launching an MVP or scaling a production system, I focus on delivering stable, high-performance code built for long-term reliability and easy maintenance. WHAT I BRING TO YOUR PROJECT: Scalable Android Development: Production-grade apps using Kotlin, Jetpack, and Clean Architecture. Kotlin Multiplatform (KMM): Shared business logic across Android & iOS without compromising native performance. Fintech & Security Expertise: Deep experience with secure transactions, encryption, and payment integrations. Backend for Frontend (BFF): Using Spring Boot (Kotlin) to optimize mobile-backend communication. Streaming & Media Apps: Expertise in ExoPlayer, VLC, HLS, and RTSP for Android TV and mobile. Complex Integrations: Seamlessly handling APIs, third-party SDKs, IoT (Samsung, Fitbit), and OAuth 2.0. CORE TECHNICAL EXPERTISE: Languages: Kotlin, Java, C/C++, Python, SQL Architecture: MVVM, MVP, Clean Architecture, SOLID principles, Modular Design (Scalable & Maintainable) UI Frameworks: Jetpack Compose, Material Design Android Jetpack: Room, Navigation, WorkManager, Lifecycle Networking & Async: REST APIs, Retrofit, Kotlin Coroutines, Flow, Ktor Cloud & Monitoring: Firebase (all modules), Google APIs, Sentry, Datadog DevOps & Tools: CI/CD pipelines, Git, Gradle, Feature Flags, A/B testing SELECTED RESULTS DELIVERED: Fintech Scale: Built and maintained a fintech mobile application used by 100,000+ users. Performance Optimization: Improved app responsiveness using Coroutines and optimized background processing. Modernization: Led the migration of legacy codebases to Clean Architecture, significantly improving maintainability. Stable Streaming: Delivered high-performance streaming experiences for Android TV using advanced video protocols. EXPERIENCE HIGHLIGHTS: Fintech (Letshego): Secure mobile banking and scalable transaction systems. E-commerce (ShopHop UK): API integrations, multi-platform features, and performance improvements. Streaming (Vodlix): Android TV apps and video delivery optimization. HOW I WORK: Clear Communication: Regular updates and transparent project management. Engineering Standards: Clean, maintainable, production-ready code. Proactive Ownership: I don't just take tickets; I solve business problems and identify risks early. Reliability: A focus on long-term stability over quick, temporary fixes. CALL TO ACTION: If you’re looking to build or scale a mobile application that is secure, scalable, and built to last, let’s talk. Feel free to reach out to discuss your project requirements.