Khoirunnisa | Mobile Developer (Flutter & Kotlin)

Core Specializations.

Hybrid & Native Apps

Building cross-platform solutions with Flutter (Dart) and native applications with Kotlin & Jetpack Compose. Experienced in clean architecture implementation, reactive state management (GetX, BLoC), and responsive layouts.

Location & Maps

Integrating mapping SDKs (HERE Maps, Mapbox, OpenStreetMap) for logistics routing and dispatch tracking. Developing real-time GPS tracking, vehicle height constraint routing, and geofencing.

IoT & DevOps Pipelines

Integrating ESC/POS thermal printing, Bluetooth SDKs, real-time Firestore syncing, and Hive/SQLite caching. Automating validation via GitLab CI/CD, SonarQube, and monitoring with Sentry.

Professional Experience.

Nov 2024 - Present

Mobile Programmer

PT. Nutech Integrasi by Telkom Indonesia (Jakarta, ID)

Engineered logistics features using Flutter for Pos Indonesia delivery operations.
Maintained and resolved bugs in the C-Access commuter rail mobile application.
Implemented real-time GPS tracking and offline database synchronization using Hive.
Developed automated CI/CD pipelines via GitLab CI/CD and integrated SonarQube code quality gates.

Apr 2025 - Mar 2026

Mobile Developer (Part-Time)

Chup Online sdn bhd (Selangor, MY)

Built clinic staff queue dashboards and patient transfer flows using Flutter.
Developed a self-service check-in kiosk application using native Kotlin and Jetpack Compose.
Integrated hardware peripherals, including ESC/POS thermal ticket printing over USB and Bluetooth.
Monitored application telemetry using Sentry and optimized resource performance.

Oct 2024 - Apr 2025

Mobile Developer Intern

Chup Online sdn bhd (Selangor, MY)

Implemented application logic using native Kotlin following strict Agile/Scrum methodologies.
Resolved memory leaks, UI lag, and synchronization bugs in tight development timelines.

Feb 2023 - Dec 2023

UI Designer & Mobile Developer

PT. Kreasi Cyber Indonesia (Freelance)

Designed high-fidelity mobile mockups in Figma and wireframes in Whimsical.
Converted 35+ high-fidelity screens into modular, clean-architecture Flutter views in 3 weeks.

Featured Projects.

Commercial Production Applications

Pos Indonesia Driver App

Flutter HERE Maps SDK OpenStreetMap Hive

A production logistics routing and tracking application utilized in Pos Indonesia's driver delivery operations. Engineered mapping and routing features optimized for commercial freight.

Integrated HERE Maps Routing API incorporating truck-specific routing constraints and live tracking.
Developed offline caching mechanism using Hive for driver data synchronizations in remote areas.
Connected application endpoints securely via WSO2 and monitored production performance with Sentry.

Chup Healthcare Registration Kiosk

Kotlin Jetpack Compose Dagger Hilt ESC/POS Thermal Printing

A patient registration and queue check-in kiosk deployed in clinics to automate check-in processes and reduce waiting line overhead.

Designed a responsive and modern UI using Jetpack Compose and native XML templates.
Integrated native ESC/POS thermal printers via USB/Bluetooth for real-time queue ticket printing.
Ensured high reliability and clean testing separation using Dagger Hilt dependency injection.

Chup Staff Operations App

Flutter GetX Firebase Firestore Sentry

A clinic staff scheduling and queue monitoring application to manage medical operational workflows in hospital wards.

Implemented GetX state management for reactive, lightweight state changes across appointments.
Built real-time queue synchronization and room status updates via Firebase Firestore.
Integrated localization support for multilingual clinic environments and logged live telemetry with Sentry.

Chup TV Queue Display App

Kotlin Android TV OS ExoPlayer Text-To-Speech

A native Android TV application installed in hospital waiting rooms to stream informative content and announce patient queue calls.

Configured real-time Firestore listeners to instantly trigger queue announcement alerts.
Integrated ExoPlayer for continuous, high-definition streaming of promotional media and loops.
Implemented a localized Android Text-To-Speech (TTS) announcement engine to announce patients clearly.

Open Source Implementations

POS Resto (Tablet Version)

Flutter BLoC SQLite Laravel (Sanctum)

An offline-first Point of Sale application designed for tablet screen formats, featuring product cart workflows, local receipt storage, and printing sync.

Implemented clear state management separation using BLoC.
Configured robust offline storage structures using SQLite.
Built integration for Bluetooth thermal receipt printing and authenticated API sync.

View Source Code