ENGINEERING
EXCELLENCE
Software Engineer
Hi, I’m Ephraim Umunnakwe, but most people know me as King Raym. I’m a Mobile developer from Nigeria, passionate about turning ideas into beautiful, functional apps. Through Raym Universe, I bring creativity and precision together to build digital experiences that inspire, solve problems, and stand out.
Core
Stack
Merging technical engineering with high-end aesthetic form.
Mobile Systems
Engineered cross-platform mobile environments using Industry-Standard tools and architectural design patterns.
Performance
Precision-tuned applications for sub-second latency and zero-waste resource usage.
Digital Form
Next.js and React architectures with a focus on Swiss-style visual systems.
Cloud Infrastructure
Distributed backend systems and real-time database architectures at global scale.
Portfolio
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Ahiaoma Seller
This is a production-ready React-Native app enabling marketplace resellers to manage products and orders efficiently. - Backend: Supabase (auth, profiles, storage, real-time) - State management: Provider with a clean, modular architecture - Notifications: OneSignal + flutter_local_notifications (push & local) - Deep links: password reset and other routed flows - Security: secure persistence via encrypted storage - UI: responsive layouts with ScreenUtil - Delivery: iOS & Android ready, env-driven config with dotenv
Ahiaoma
Ahiaoma is a production-ready Flutter marketplace built for speed, reliability, and scale. (Contact me for Demo) Features and Perks: - Responsive product catalog, high‑performance image grids, category browsing, search, and price filtering. - Clean Architecture, modular UI, Provider state management, multi‑environment configs, secure local storage. - Supabase authentication and user profiles. - Granular Notification handling and deep‑link–ready taps. - Role‑based dashboard and controls. - Robust error handling, smooth scrolling, offline‑friendly UX.
CT Learn
Unlike other Visual Learning Environments, CTlearn User Interface (UI) is simplified making it easier to navigate the system thereby helping those with low IT knowledge to use the platform without series of training. Being a decentralized Visual Learning Environment (VLE) will help solve the learning cultural differences that exist within our schools and Higher Institutions. CTlearn User Interface (UI) makes it easier for teachers with lower IT skills to easily navigate within the entire system without undergoing several training on how to use CTlearn.
Network
"I hired Ephraim U. as a Flutter developer and CTO to help in building our company mobile application. He was responsible for writing the code from scratch to launching the finished product."
Mba A.
CEO @Ahiaoma
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