Fullstack Developer & Mobile Engineer specializing in high-performance web applications, scalable APIs, and cross-platform mobile apps with React Native.
const developer = {
name: "Muhammad Royyan",
role: "Fullstack Developer",
skills: [
"Laravel", "React",
"React Native", ".NET"
],
passion: "Building scalable systems"
};Passionate about building systems that perform under pressure
Hi, I'm Muhammad Royyan Zamzami — a Fullstack Developer with 5+ years of experience building scalable business applications. From high-performance backend APIs to real-time dashboards and cross-platform mobile apps, I deliver end-to-end solutions that grow with your business.
Currently working at PT Zona Karya Nusantara, I specialize in retail systems, inventory management, and marketplace integrations. My focus is always on performance, clean architecture, and systems that handle real-world traffic.
"Build systems that still run smoothly when users increase — not systems that only work during testing."
— Muhammad Royyan
End-to-end development services from concept to deployment
Robust APIs with Laravel & .NET. Queue systems, caching strategies, and database optimization for high-traffic applications.
Complete web applications from frontend to backend. Real-time dashboards, admin panels, e-commerce, and business systems.
Cross-platform mobile apps with React Native. Offline-first sync, push notifications, and seamless API integration.
Point of Sale systems, inventory management, and marketplace sync engines built for high-concurrency transactions.
Real-time business dashboards with live data visualization, reporting systems, and performance monitoring tools.
Server setup, CI/CD pipelines, and production deployment on Linux servers with Nginx and performance tuning.
Real-world systems built for performance and scalability
High-concurrency point of sale system handling thousands of daily transactions with real-time inventory sync and multi-branch support.
View on GitHubComplete warehouse management with stock tracking, automated reorder points, and multi-location support.
View on GitHubAutomated product and order synchronization across multiple marketplace platforms with queue-based processing.
View on GitHubCross-platform mobile app for real-time stock checking with offline-first sync strategy and barcode scanning.
View on GitHubReal-time analytics dashboard with live sales data, KPI tracking, and automated reporting for business intelligence.
View on GitHubBattle-tested technologies I use to build reliable systems
Ready to start your project? Reach out and let's discuss your needs