Wahyu Ritchie · Frontend Engineer

I build mobile apps that ship fast and scale clean.

Expo / React Native frontend engineer — production-grade mobile apps for logistics, healthcare, and enterprise.

Selected Work

Rekosistem

Led frontend architecture across web and mobile platforms. Built their customer-facing React Native app with real-time tracking, and revamped the admin dashboard for waste management operations.

React NativeExpoFirebaseNext.js

Znitech

Built a modern, responsive company profile and service showcase site for a technology solutions company.

Next.jsReactTypeScriptTailwind

Diary Bunda

Developed a pregnancy companion app for iOS and Android — health tracking, push notifications via Firebase Cloud Messaging, and cross-platform feature parity with native performance.

React NativeFirebase Cloud Messaging

Photobooth Web

iPad-optimized offline-first PWA photobooth for events. Guests capture photos with countdown timer, apply branded frames, and share via QR — all without internet.

Next.jsPWAOffline-firstCanvas API

Side Projects

Photobooth Web

iPad-optimized offline-first PWA photobooth for events. Guests capture photos with countdown timer, apply branded frames, and share via QR — all without internet.

Next.jsPWAOffline-firstCanvas API

POS UMKM

Mobile-first POS system for Indonesian small businesses. Supports offline transactions, role-based access, and auto-syncs with Firebase.

Next.jsFirebaseZustandPWA

Stock Med

Clinic & pharmacy management with EMR. Medicine inventory, SOAP notes, ICD-10 diagnosis, lab orders, prescriptions, and RBAC for 7 roles.

Next.jsFirebaseReduxshadcn/ui

Takjil Finder

Ramadan takjil finder — discover nearby takjil sellers with geolocation and real-time availability.

Next.jsGeolocationPWA

Skills & Technologies

React Native
React.js
Next.js
TypeScript
JavaScript
Firebase
REST API
Mobile App Architecture
Frontend Architecture
State Management
Responsive Web
Performance Optimization
& more

Let's build something

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