Architecting high-performance cross-platform mobile apps.
Specializing in Flutter and React Native. Focused on building clean, reliable mobile applications with thoughtful user experience and maintainable code.
Core Tech Stack & Frameworks
Track Record
8+ years building production mobile apps
Lead Flutter Developer
PT Aplikasi Liburan Indonesia
Leading cross-platform engineering for consumer-facing mobile applications using Flutter, focusing on scalable architecture, reliability, and store releases.
Core Focus & Deliverables:
- Led cross-platform mobile development across iOS and Android using Flutter, driving technical decisions and UI/UX improvements that shaped product direction.
- Architected core travel booking modules (Flight, Train, Hotel, and Pelni) using Clean Architecture and the BLoC pattern, ensuring high scalability and maintainability.
- Engineered end-to-end checkout flows for bill payments and digital goods with reactive state management and robust error handling, significantly reducing failed transactions.
Freelance Mobile Developer
Self-Employed
Delivered targeted mobile application engineering for clients, focusing on UI/UX enhancements, cloud infrastructure migration, and store releases.
Core Focus & Deliverables:
- Optimized existing client applications through focused UI/UX enhancements, bug resolutions, and performance tuning for a fluid user experience.
- Migrated Firebase cloud infrastructure from legacy projects with zero downtime, ensuring seamless backend synchronization and data integrity.
- Managed end-to-end App Store and Google Play release lifecycles, navigating build provisioning, store compliance policies, and version rollouts.
Mobile Developer (React Native & Flutter)
PT Dreindo Ragam Teknologi
Engineered multi-industry mobile applications for software agency clients across fintech, e-commerce, EdTech, and enterprise logistics.
Core Focus & Deliverables:
- Engineered and shipped 8+ production cross-platform mobile apps across iOS and Android using Flutter and React Native spanning fintech, e-commerce, and EdTech.
- Delivered complex feature sets including fintech PPOB/ticketing (Smart In Pays), GPS-based field attendance (DOS Attendance), and enterprise sales tracking (PLI Mobile).
- Transformed high-fidelity Figma and Adobe XD specifications into responsive mobile UIs while managing concurrent app release pipelines on both app stores.
Skills & Stacks
Technologies, frameworks, and architectural practices used in real-world products.
26 Technical & Delivery Capabilities
Mobile Frameworks & Languages
Core SpecializationCross-platform and native engineering for responsive, high-performance iOS and Android apps.
State Management & Architecture
Structure & LogicPredictable state machines, reactive patterns, and decoupled modular architectures.
Backend, Cloud & AI Services
Data & Modern APIsCloud services, offline-first local synchronization, and generative AI / LLM mobile integration.
Tooling, DevOps & Testing
Automation & QualityAutomating CI/CD pipelines, maintaining code quality, and testing rigorously.
Leadership & Engineering Delivery
Agile & ExecutionGuiding sprint execution, architectural direction, code standards, and cross-team delivery.
Clean Architecture & Production Pipeline
Click any pipeline stage below to view architectural separation, standards, and implementation snippets.
Presentation Layer
Unidirectional data flow, reactive state streams, and fluid 60fps animations
Standards & Patterns:
- Strict separation of UI widgets from business logic via event-driven state streams.
- Optimistic UI updates for high-perceived responsiveness during flaky cellular networks.
- Atomic design system with shared design tokens, typography, and dark/light modes.
// UI Widget subscribes to decoupled BLoC state stream
BlocConsumer<TransactionBloc, TransactionState>(
listener: (context, state) {
if (state is TransactionFailure) showToast(state.message);
},
builder: (context, state) {
if (state is TransactionLoading) return const ShimmerSkeleton();
return TransactionList(items: state.items);
},
)Core Engineering Strengths & Production Principles
Robust local caching (SQLite/Hive) with automatic conflict resolution when internet reconnects.
Engineered mission-critical booking and bill payment flows with robust error handling to prevent failed transactions.
Hands-on experience signing certificates, managing Google Play tracks, and navigating Apple App Review.
Separation of concerns across Presentation, Domain, and Data layers for painless code maintenance.
Featured & Shipped Applications
Selected mobile applications spanning active consumer platforms and commercially shipped production systems across iOS & Android.
Holigo
All-in-one travel booking and digital bills lifestyle platform
A comprehensive travel and lifestyle super-app by PT Aplikasi Liburan Indonesia, serving over 500k+ users for booking flights, trains, hotels, and Pelni ships alongside end-to-end PPOB digital bill payments with high-reliability checkout flows.
Key Highlights & Architecture:
- Architected core travel booking modules (Flight, Train, Hotel, and Pelni) with Clean Architecture & BLoC.
- Engineered end-to-end checkout flows for bill payments and digital goods with robust error handling, significantly reducing failed transactions.
- Optimized app reliability, state persistence, and responsive UI across a wide range of Android and iOS devices.
Browse Screens (6):
Main lifestyle & travel dashboard with Agent Balance wallet and 24/7 live support
FinBiz
Business income & expense tracking with automated cashflow analytics
A mobile financial operations app engineered for MSME business owners to record daily multi-channel transactions (Cash & QRIS), automate recurring overhead expenses, and monitor real-time profit and loss with Cloud Firestore.
Key Highlights & Architecture:
- Architected reactive state management with Riverpod 2.6 and declarative routing using GoRouter for a fluid, predictable user flow.
- Engineered client-side auto-expense scheduling with deterministic idempotent execution, preventing duplicate transactions.
- Designed dynamic financial dashboards and period trend charts with fl_chart, supporting full dark/light modes and multi-language i18n.
Browse Screens (9):
Daily net income summary, surplus status, and real-time cashflow balance
Shipped Production Applications
Commercial mobile applications engineered and shipped to Google Play & Apple App Store across fintech, enterprise CRM, workforce management, and healthcare.
Smart In Pays
Fintech PPOB payments, travel ticketing & map referral discovery
Built a fintech app covering PPOB payments, airline/train ticketing, hotel booking, e-wallet top-ups, and transfers; added map-based referral search to improve user discovery.
- Engineered comprehensive PPOB billing and domestic flight, train, and hotel booking engines.
- Integrated map-based geo-referral search to enhance user discovery and local merchant connectivity.
- Managed concurrent release pipelines across Google Play Store and Apple App Store.
PLI Mobile
Enterprise sales pipeline, lead assignment & document tracking
Delivered an enterprise sales pipeline app with document/photo upload, progress tracking, and lead assignment that streamlined field sales operations.
- Streamlined field operations with automated lead distribution and real-time status progression tracking.
- Implemented secure photo and document upload pipeline with client-side image compression.
- Built role-based workflows for mobile field agents and regional territory supervisors.
DOS Attendance
GPS-based geofenced attendance logging & manager dashboards
Implemented a GPS-based employee attendance system with real-time activity logging and manager reporting dashboards.
- Engineered tamper-proof GPS and geofencing verification ensuring accurate on-site check-ins.
- Real-time field activity timeline with instant reporting dashboards for operations managers.
- Offline-resilient check-in caching that syncs automatically when mobile connectivity restores.
Smart Academy
EdTech marketplace with audio/video streaming & offline playback
Built an EdTech marketplace with audio/video streaming, cart/wishlist, and offline playback to support learning on the go.
- Engineered media player with audio/video streaming, background playback, and offline downloads.
- Implemented full e-commerce course marketplace with cart, wishlist, and payment gateway checkout.
- Synchronized lecture progress and bookmarks seamlessly across multi-device user sessions.
BI Touch
Provincial commodity price monitor, e-book library & QR scanning
Built a commodity information portal with e-book downloads, price monitoring, embedded payments, and QR scanning for Banten province.
- Real-time regional commodity price surveillance and inflation trend visualizer for Banten province.
- Integrated fast QR code scanner and PDF/e-book document reader with offline local storage.
- Embedded digital payment channels for purchasing provincial publications and economic reports.
Yuasa
Official brand e-commerce, battery maintenance & dealer portal
Developed the official brand e-commerce app with product catalog, maintenance reminders, and a dealer login portal.
- Interactive battery compatibility finder tailored to specific vehicle models and years.
- Automated local maintenance push notifications and battery lifecycle diagnostic reminders.
- Dedicated B2B authenticated dealer portal for stock checking and warranty registration.
Drg. Edward Clinic
Dental clinic patient scheduling & doctor availability booking
Built an online clinic scheduling system letting patients view availability and book appointments seamlessly.
- Real-time dental practitioner calendar slot availability with instant appointment reservation.
- Automated appointment reminder alerts and personal dental treatment history tracking.
- Clean, accessible patient UI designed for high readability and swift booking on mobile.
Writing
Architecture decisions, lessons learned & engineering reflections