erza.™ logo - minimalist geometric design representing the intersection of code and music

writing code in swift.
writing feelings in chords.

erza.™ is the creative work of reza ilham, indonesian ios developer and musician. crafting digital experiences and composing melodies.

* ilham (il-'ham) from arabic means inspiration, divine guidance.

with 10+ years of experience, i've built swift used by millions from logistics to healthcare.

i write code like i write songs: with rhythm, structure, and soul.

Reza Ilham (erza.™) - Indonesian iOS developer and indie musician portrait

appography

U by Prodia health diagnostics iOS app - SwiftUI interface showing medical test results dashboard and health tracking features

🧬 health diagnostics platform

i worked as the iOS lead on a healthcare app, using SwiftUI and MVVM to build clear, accessible interfaces. most of my time went into building reusable components, improving performance, and making sure the UI made sense for real people. it was a team effort, and i helped guide the direction from development to production.

SwiftUI • MVVM
myXL telco service iOS app - UIKit interface displaying data plans, account management, and mobile service features used by millions daily

📶 Telco Service App

i worked on the iOS team for a large-scale telco app used by millions of people daily. built with UIKit and VIPER architecture, i helped develop and maintain core features across several modules. it was a fast-paced environment where structure, speed, and teamwork were essential.

UIKit • VIPER
Paxel courier and delivery iOS app - UIKit interface showing shipment tracking, delivery management, and logistics features

🚚 Courier & Delivery App

i was involved from day one on this courier app from initial development all the way to its public release. built with UIKit and MVVM, i worked on everything from core flows to UI components, making sure the app was stable, consistent, and ready to scale. it was a hands-on project that taught me a lot about building from the ground up.

UIKit • MVVM

discography

Coffee single album cover by erza. - Copeland cover reimagined with emo lo-fi production, released 2023

coffee

originally by copeland, reimagined through my own lens. this cover started as a quiet experiment a way to revisit a song i've always loved and let it breathe in my own rhythm. produced alone in my room, shaped by the kind of silence that only early mornings give. this version is also a small tribute to a café i hold dear index coffee.

• 2023
Oh Shit I'm Getting Old single album cover by erza. - Original emo lo-fi track about aging and uncertainty, released 2022

oh shit i'm getting old

written during a quiet panic. released on my birthday. this song came from a place of doubt about time, progress, and the blurry lines between "figuring it out" and "falling behind." it's messy, honest, and probably the most me i've ever sounded.

• 2022
Again and Again single album cover by erza. - Debut emo lo-fi track with looping thoughts and late-night vibes, released 2021

again and again

my first release — co-written and soaked in emo lo-fi vibes. built on simple chords, subtle layers, and looping thoughts that echo late-night moods. unpolished on purpose, this track set the tone for everything that came after.

• 2021
// erza.™ 2025