mobile engineer · open to remote · international

I build the system
the app runs on.

5+ years. 1.6M+ users. Real-time AI.
Enterprise comms. Not just Flutter —
the architecture behind it.

View work Talk to me

1.6M+

USERS SCALED

IDR 13B+

PROCESSED

YRS FLUTTER

APPS SHIPPED

NU ONLINE · WIZPR · NISA AI · S.ID · NUCASH · KEMENAG · PT PP · NUSABIT · NU ONLINE · WIZPR · NISA AI · S.ID · NUCASH · KEMENAG · PT PP · NUSABIT · NU ONLINE · WIZPR · NISA AI · S.ID · NUCASH · KEMENAG · PT PP · NUSABIT · NU ONLINE · WIZPR · NISA AI · S.ID · NUCASH · KEMENAG · PT PP · NUSABIT ·

00Co-founder

Co-founder of Nusabit — delivered enterprise projects for Indonesia's Ministry of Religious Affairs and PT PP (Persero) Tbk and more.

01Selected Work

1.1

Wizpr

Signal-grade internal comms platform — event-based chat, voice/video calls, and FIDO2-style biometric auth. Built from scratch after diagnosing a fundamental architecture failure.

5 → 40 users

SECURITY · INFRA

1.2

Nisa AI

Multimodal AI platform — text, image, real-time voice. Solved a threading conflict between a 60fps Lottie animation and a live audio streaming pipeline.

Smooth speech-to-speech

AI · REAL-TIME

1.3

NU Online SuperApp

Redeveloped Indonesia's largest Islamic super app from the ground up — modular architecture, offline-first, 40x growth in 2 years.

App Store ↗Play Store ↗

1.6M+ users

SCALE · ARCHITECTURE

1.4

S.ID App

Solo end-to-end — link shortener & microsite creator. Architecture, UI, store submission, and reporting. No designer. No other mobile devs.

Play Store ↗

5K+ downloads

FULL OWNERSHIP

02How I think

Security & Infrastructure

E2EE for Chat — When Simple Isn't Simple Enough (Part 1)

The chat module had encryption hooks. Sodium was already integrated. Adding E2EE should have taken a week. Then Signal Protocol showed up.

2026-05·8 min read

Real-time Systems

60fps animation and real-time audio — both fighting for the same thread

The requirement sounded straightforward: build a speech-to-speech AI interface with a smooth Lottie animation. Three things happening simultaneously created a problem we didn't anticipate — the UI and the audio pipeline were competing for the same thread.

2025-06·6 min read

Architecture

When the right solution isn't fixing the bugs — it's diagnosing why the bugs exist

The server was hanging with 5 users. Messages were unreliable. The app had no offline capability. These weren't bugs — they were the predictable consequences of an architecture that wasn't designed for real-time communication.

2025-06·7 min read

Product & Ownership

No product manager. No designer. No spec. Just a web app and a question: what should the mobile app be?

When I joined S.ID, the mobile app did not exist. No product manager. No UI/UX designer. No mobile team. Most engineers wait for someone to hand them a spec. I didn't have that option.

2024-02·9 min read

See more writing

03Ask Me Anything

Ask my AI twin about my work, architecture decisions, and approach to building products.

prefer the human?

email linkedin

ASK ME ANYTHINGAI twin · online

Ask me anything about my work and experience.

I build the systemthe app runs on.

E2EE for Chat — When Simple Isn't Simple Enough (Part 1)

60fps animation and real-time audio — both fighting for the same thread

When the right solution isn't fixing the bugs — it's diagnosing why the bugs exist

No product manager. No designer. No spec. Just a web app and a question: what should the mobile app be?

I build the system
the app runs on.