Crafting High-PerformanceDigital Ecosystems
Senior Mobile Developer asal Batam, Indonesia. Spesialisasi Kotlin, Jetpack Compose, Kotlin Multiplatform, dan Flutter untuk aplikasi Android native dan lintas platform.
Precision Engineering
Cross-Platform Apps
Building high-performance apps for Mobile, Desktop, and Web using Kotlin Multiplatform & Compose Multiplatform.
- Single Codebase Efficiency
- Native UI/UX Performance
- Shared Multiplatform Business Logic
Hardware & Systems
Specialized in thermal printing solutions, low-level driver integrations, and external hardware APIs.
- ESC/POS Terminal Integration
- USB / Bluetooth / TCP Sockets
- Direct Command Buffer Controls
Enterprise Architecture
Designing highly scalable structures utilizing Clean Architecture, SOLID, and reactive state management.
- Modular Design Patterns
- MVVM / MVI Clean Flow
- Offline-First Data Caching
Showcase Highlights
Universal Engineering.
No Platform Boundaries.
From direct ESC/POS hardware control and socket communications to responsive reactive web layouts and cross-platform mobile apps. I architect complete end-to-end ecosystems designed for durability, lightning speed, and elite design aesthetics.
3+ Years
Commercial Track Record
100%
Custom Performance-First Code
Engineering Blueprints
Secure & Reliable Systems
Deep integration of secure local SQLite databases with AES-256 encryption, biometric parameter validation, hardware-backed keystore isolation, and runtime integrity checks ensuring data remains protected even when fully offline.
Product Launch & Operations
End-to-end lifecycle management from conceptualization and feature scoping to CI/CD automated releases, over-the-air system updates, real-time performance monitoring dashboards, and long-term support metrics tracking for sustained operational health.
Retail & POS Business Apps
Mobile-first cash register systems with offline-first transaction queuing, multi-jurisdiction tax matrix calculations, instant Bluetooth and USB thermal receipt printing, and integrated payment gateway orchestration for seamless retail operations.
Cloud Infrastructure & Backend APIs
Multi-layered backend server architecture spanning RESTful and GraphQL APIs, relational database replication and sharding, multi-provider payment aggregation, and high-frequency webhook pipelines with dead-letter queue resilience for maximum uptime.
QA Delivery & Performance
Automated test coverage enforcement at 98%+, CI/CD build pipelines with gated quality checks, static analysis and clean code validation, comprehensive regression suites, and bug-free delivery checklists signed off per release cycle.
Clean Code & Modular Architecture
Strict separation of concerns across Presentation, Application, Domain, and Data layers following SOLID principles, dependency injection patterns, repository abstractions, and interface-driven design for maximum testability and long-term maintainability.
Mobile App Engineering
Cross-platform application builds compiling to native platforms via Android SDK with Kotlin and Java, iOS Swift interfaces with UIKit and SwiftUI, and Flutter for unified codebase deployment across mobile, tablet, and desktop form factors.
UI/UX Mobile System Design
Unified design systems with modular typography components, dynamic HSL color palette theming supporting dark and light modes, user flow diagrams, pixel-perfect responsiveness across device sizes, and accessibility-first interaction patterns for inclusive experiences.
Performance Optimization
Systematic analysis of loading benchmarks and Core Web Vitals, minimization of Cumulative Layout Shift through optimized asset loading, crash ratio monitoring with root cause analysis, and proactive resource scaling based on usage pattern forecasting.
Cross-Platform Mobile Integration
Single-codebase development leveraging Vue.js, Nuxt, and React Native for universal app delivery, optimized rendering pipelines achieving 60fps even on mid-range devices, and shared business logic modules reducing cross-platform maintenance overhead by up to 40%.
Featured Projects
Pustaka Kotlin Multiplatform untuk pencetakan termal ESC/POS — satu API untuk Android, iOS, JVM/Desktop, JS, dan Wasm.
Aplikasi Kotlin Multiplatform (Compose Desktop) untuk mengelola perangkat Android lewat scrcpy dan adb dari satu tempat.
Let's build something solid.
Available for freelance work and technical collaboration.