Junior iOS Developer | Android Developer | Software Engineer

Hi, I'm Elliezer!

A tech enthusiast from 10 years old and jumped into informatics as my first passion. I'm a mobile developer focused on building clean, reliable iOS and watchOS apps with Swift and SwiftUI, with a growing footprint on Android too. I care about the small details that make an app feel effortless to use.

Most of what you'll see here started as a challenge at the Apple Developer Academy because my freelance project are usually NDAs (I really wanted to tell you guys about it, seriously). From AR experiences to Apple Watch companions. When I'm not shipping apps, I'm usually exploring new frameworks, prototyping ideas, or refining a design until it feels right.

Elliezer Christian Evan Sagena

Selected work

All projects →
Pourfect: AR Latte Art screenshot

Pourfect: AR Latte Art

2026

Role: Developer (Presentation Layer). An augmented-reality iOS app that teaches latte art. Pourfect uses AprilTag fiducial tracking to lock onto the cup and pitcher, then overlays a real-time, GPU-accelerated fluid simulation so you can practice pours — Heart, Tulip, Rosetta — with any liquid and get instant visual feedback. Built after pivoting from ML-based object tracking to robust, zero-training 6DoF geometry.

SwiftARKitMetalKitVisionAprilTags
Zony screenshot

Zony

2026

Role: Tech Lead, System Architect, and Developer. A dual-platform experience spanning iPhone and Apple Watch, built for the Apple Developer Academy’s “From Pieces to Product” challenge (Challenge 3). To empower parents with ashtmatic children to keep their child doing their desired sports with realtime tracking of their child’s oxygen saturation and heart rate, Zony is a companion app that allows parents to monitor their child’s health data while they are away. The app is distributed to testers via TestFlight.

SwiftSwiftUIwatchOSiOS
ODD screenshot

ODD

2025

A native Android marketplace app built entirely in Kotlin for a Indonesian perfume brand called ODD. Built with Jetpack Compose, MVVM architecture, and a clean code approach. The app features a product catalog, shopping cart, and checkout process, providing users with a seamless shopping experience. Implemented payment gateway using Xendit, and integrated email notifications for order updates. The app is designed to be responsive and user-friendly, with a focus on performance and scalability.

KotlinAndroidGradle