Grace N.

Every app I ship is built to scale without lagging, crashing or breaking under high traffic. While many developers only write frontend code, I engineer full-stack mobile applications, from smooth UI components to scalable Node.js cloud backends. I am a Software Engineer with 5+ years of experience building production apps, real-time media systems and interactive mobile games. I focus on practical business outcomes: apps that load fast, run smoothly on real devices, and handle high user volumes without server downtime. The full picture of what I do: Your idea → UI/UX implementation → Flutter/Android code → Backend → Store Deployment → Post-launch support. One developer. No hand-offs. No "that's not my job." What I Build: • Mobile Applications: High-performance apps for iOS and Android using Flutter & Native Android (Kotlin/Java). • Performance Optimization: Legacy code refactoring, fixing crashes, and eliminating UI lag to ensure peak app speed. • Backend Systems: Scalable cloud architectures built with Node.js, Express, AWS (Lambda, S3, DynamoDB, EC2), Supabase and Firebase. • Real-Time & Media Features: Live video/audio streaming backends, real-time chat, speech-to-text transcription, and role-based permissions. • Payment Integrations: Secure third-party payment setups, including international and regional gateways like Stripe and M-Pesa. • Interactive & Games: Engaging 2D/3D mobile experiences, mechanics, and gamified features built in Unity (C#). Why This Matters For Your Project: I don't just build the client side. I design the backend server infrastructure to match. That means fewer communication gaps, faster delivery timelines, lower development costs and a mobile app that stays reliable as your user base grows. 🛠️ TECH STACK • Languages: Dart (Flutter), Kotlin, Java, C#, JavaScript/TypeScript (Node.js), XML • Mobile & Games: Flutter, Android Native, Unity Engine • Backend & Cloud: Node.js, Express, AWS, Firebase, Supabase, RESTful APIs • Databases: MongoDB, DynamoDB, SQLite, Firestore • Architecture: Clean Architecture, Provider/BLoC, RESTful APIs, Microservices What You Can Expect Working With Me: • Clear & Proactive Communication: Regular progress updates so you always know where your project stands. • Code That Lasts: Scalable, well-documented code that any developer can maintain after me. • On-Time Delivery: I respect deadlines and treat your business goals like my own. Send me your project details and I will reply promptly with a clear execution plan, timeline and how we can bring your mobile product to life.