Featured · iOS · Apple Academy
KoalaFit
Personalized workouts and meal tracking from body proportion — AI plans, one-tap food scan, live burn on Apple Watch.
Hello — I'm
Otniel Simanungkalit
Go + GinBackend systems
SwiftUIApple Academy
Fullstack
Engineer
exploring iOS
2+ years shipping production fintech — payment APIs, KYC pipelines, wallet dashboards. Now taking that rigor onto the iPhone.
About me
I'm a fullstack engineer who started in systems that have to be correct — money moving, identities verified, operators trusting the panel. Apple Developer Academy is where that same rigor meets the device in someone’s pocket.
Education
Mar — Dec 2026
Apple Developer Academy · Cohort 7
iOS, Swift & SwiftUI
2021 — 2025
Institut Teknologi Del
D4 Software Engineering · GPA 3.34
Technical skills
Go
Swift
Laravel
React
Docker
Node
Skill set
Backend
Gin · Fiber · Microservices
Native SwiftUI · Vision · WatchKit
Delivery Jenkins · Grafana · Sentry
Native SwiftUI · Vision · WatchKit
Delivery Jenkins · Grafana · Sentry
Selected work
Things I've shipped.
iOS · Apple Academy · Challenge 4
Marble
Gamified screen-time reduction — an avatar that grows when you doomscroll less. Friction before the scroll, then a better next step.
01
YourPay · Internal
iOS · Apple Academy
KYC Document Checker
Identity checks through Sijitu, Dukcapil, and Verihubs — one Go API the rest of YourPay can call.
Go · Sijitu · Dukcapil · Verihubs
02
YourPay · Internal
Wallet-as-a-Service
React operator UI on Go wallet APIs — balances, history, and Xendit-backed top-up / withdrawal.
React · Go · Xendit
03
YourPay · Internal
CMS Admin Panel
Filament is the UI only — Go underneath. One ops panel for customers, roles, PPOB, KYC review, and transactions.
Filament · Go
04
CraFit
Craving is a signal, not a command. AR puts a body in the room until the urge has somewhere else to go.
SwiftUI · ARKit
05
iOS · Apple Academy · TestFlight
Lana
Cycling routes from a target distance — loop or A to B, then pick the line. Weather and live navigation on the ride.
SwiftUI · MapKit
06
iOS · Apple Academy
Catat.in
Vision reads paper receipts from the camera so the numbers actually stay.
SwiftUI · Vision
07
Freelance · Live
Tenno Cita Perkasa
Building-materials storefront in Laravel — catalog and media on Cloudinary, deployed on a VPS.
Laravel · Cloudinary · VPS
08
Freelance · API
Pedika App
REST APIs for mobile and admin, Cloudinary media, deployed on Railway.
API · Cloudinary · Railway
Background
Where I've been.
Software Engineer
YourPay · PT RPAY Finansial Digital Indonesia
Feb 2025 — Now
- Built KYC Document Checker — identity checks through Sijitu, Dukcapil, and Verihubs behind one Go API consumed by other YourPay services.
- Shipped Wallet-as-a-Service: React operator UI on Go wallet APIs — balances, history, and Xendit-backed top-up / withdrawal.
- Built the CMS ops work from — Filament UI on Go APIs for customers, access, PPOB, KYC review, and transaction controls in one panel.
Backend Engineer
Aleph Labs
Sep — Dec 2024
- Shipped Laravel + SQL Server APIs for ASTRA Honda’s Mokita digital platform, in a production backend team.