MetroMart - Grocery Delivery
MetroMart – Fast grocery and essentials delivery from S&R and partner malls, with orders delivered in as fast as 2 hours right to your doorstep.
Mobile App Developer
Hi, I'm Julius !
Hi, I'm Julius !
Creating seamless mobile experiences that solve real-world problems.
Senior Mobile Developer specializing in Android application development with strong expertise in Kotlin and Java. Experienced in designing and building scalable, maintainable, and high-performance mobile applications using MVVM architecture, Clean Architecture principles, and modern best practices.
android • spring bootkotlin / kmp / java
10+Featured apps
3+Platforms — Android & KMP
3+Core languages
9+Service specialties
About Me
Boost business strategy with mobile solutions
Senior Android Developer with deep, production-level experience building and scaling robust applications using Kotlin and Java. I focus on developing clean, well-architected mobile solutions that meet complex user needs. From initial concept to market delivery, I care about writing simple, maintainable code that ensures long-term application health and performance.
Currently part of the development team as a Senior Android Developer at a large-scale e-commerce platform. Beyond my professional Android work, I enjoy exploring the full-stack ecosystem through personal projects, where I have developed APIs using Kotlin, Spring Boot, and MongoDB. I take ownership of the entire lifecycle by managing cloud infrastructure and VPS deployments to host my own backend services. I am also actively expanding my expertise into Kotlin Multiplatform (KMP) and Jetpack Compose, always striving to stay on the cutting edge of mobile technology.
Android
KMP
Kotlin
Jetpack Compose
Java
XML
Spring Boot
MongoDB
VPS
JWT
Git
JUnit
Espresso
Postman
Firebase
Skill Set
Technical skills & expertise
Experienced Senior Android Developer with deep expertise across the native Android ecosystem. Proven ability to design and deliver high-performance applications using clean, scalable architectures and modern development practices. Skilled at integrating robust backend services and continuously expanding my engineering proficiency with modern frameworks like Jetpack Compose and Kotlin Multiplatform.
01
📱
Mobile Development
Android development for creating smooth native mobile experiences for the Android platform.
02
💡
Cloud Infrastructure
Experienced in configuring and managing Virtual Private Servers (VPS) to deploy, host, and maintain backend services for production-ready reliability.
03
🚀
App Release & Distribution
Skilled in deploying, updating, and maintaining Android applications across official app distribution platforms.
04
🛠️
Tools & Platforms
Expertise in OOP, Data Structures, Databases, and Operating Systems — working efficiently across Windows.
Worked On
Technologies & services I work with
🤖
Android Development
High-performance native Android apps using Java, Kotlin, and modern UI/UX principles. Experienced in REST APIs, Firebase, Maps, video processing, and real-time features.
🦋
Multiplatform Mobile Development
Scalable multiplatform apps with advanced state management, native integrations, and custom package development — including extending existing packages.
🔌
RESTful APIs
Connecting apps with secure APIs using REST — optimizing performance, caching, pagination, and real-time synchronization.
🔥
Firebase & Cloud Services
Authentication, Firestore, Realtime DB, Storage, Cloud Messaging, Crashlytics, and Analytics for scalable mobile applications.
💳
Payment Gateway Integration
Secure payments with Stripe and Xendit with proper validation and subscription flows.
🎬
Video Playback & Streaming
Video playback and streaming using ExoPlayer.
⚡
Real-Time Communication
WebSockets, Pushers, and event-driven architecture for chat like Sendbird, notifications, and collaboration tools.
🗺️
Maps & Location Services
Map-based apps with navigation, route drawing, live tracking, and location-based services.
Latest Projects
Transforming ideas into exceptional apps
A collection of production apps I’ve built and delivered — from white-label platforms and business solutions to consumer applications released on the Play Store.
MetroMart - Rider and Shopper
This application is designed specifically for use by MetroMart Riders and Personal Shoppers, ensuring tailored support and functionality for these users.
MetroMart - Merchant
This MetroMart Merchant application was created to manage orders accordingly. We are partnered with over 500+ local merchants who also aim to provide quality services and grocery deliveries right into your doorsteps.
Filipino Recipe
Filipino Recipe is a comprehensive recipe management application built from the ground up using native Jetpack Compose. Designed to simplify the cooking experience, the app features an intuitive, filtered search system, a robust favorites management module, and an elegant detail view that guides users through preparation with ease.
Let's get in touch!
I love meeting new people from around the world! Hit me up to talk about project ideas and programming — find me on any platform below, or drop me an email.
juliusvillagracia.04@gmail.com