Positioning
Senior mobile engineering with product delivery focus
I work across native Android, Flutter, and supporting backend systems, with an emphasis on maintainable implementation, release quality, and real-world product execution.
Software Engineer | Android | Flutter | Kotlin Multiplatform | Backend APIs | CI/CD
I build production mobile apps with the engineering depth to ship, scale, and maintain them.
Abdullah Al Masud is a Bangladesh-based software engineer with 6+ years of experience delivering Android, Flutter and Kotlin Multiplatform applications across communication, fintech, e-commerce, and public-impact products.
What I Focus On
- Native Android with Java and Kotlin
- Flutter for Android and iOS delivery
- Clean architecture and maintainable codebases
- API and admin tooling for app ecosystems
- Feature design, release quality, and iteration
Professional Summary
Senior Software Engineer with 6+ years of experience specializing in native Android, Flutter, and Kotlin Multiplatform mobile application development. Proven expertise in building high-performance, scalable mobile applications using clean architecture principles. Skilled in REST API, MQTT, gRPC, GraphQL and WebRTC integrations, with additional experience in backend development using Laravel.
Technical Skills
- Languages: Java, Kotlin, Dart, Python, JavaScript, PHP, SQL, XML, HTML5, CSS3
- Android: Android SDK, Jetpack Compose, Hilt, Coroutines, Flow, RxJava, Retrofit, Room Database, Google Maps
- Flutter: Bloc, GetIt, GoRouter, Dio, Freezed, json_serializable, Dart Streams, Material Design
- Kotlin Multiplatform: Kotlin Coroutines & Flow, Ktor, Koin, Kotlinx Serialization, Compose UI
- Architecture & Patterns: Clean Architecture, MVVM, MVC, Bloc Pattern, Dependency Injection
- API & Communication: REST API, MQTT, GraphQL, gRPC, WebRTC, Protocol Buffers
- Web & Backend: Laravel, Bootstrap, HTML5, CSS3
- Tools & Platforms: Android Studio, VS Code, Xcode, Git, Postman, Jira, Firebase, Fastlane
- Databases: MySQL, SQLite, Firebase Realtime Database, Cloud Firestore
- Operating Systems: MacOS, Windows, Android, Ubuntu
Selected Case Studies
Recent work that shows product range and technical maturity
CDAS Mobile App
Developing a Kotlin Multiplatform with Compose UI mobile application for DataNet's Central Deduction Administration System (CDAS), serving government and financial sectors across Eswatini (formerly Swaziland), Lesotho and South Africa. MVP features: user login, deduction (loan) request submission, loan history, application status tracking, and user profile — targeting both Android & iOS with shared business logic and UI layer.
- Built for government and financial sector operations
- Shared codebase for Android and iOS using KMP
- Supports deduction management and loan workflows
Money Track
An offline-first personal finance application for tracking income, expenses, accounts, budgets, and investments without relying on cloud storage or continuous internet access.
- Built with Dart and Flutter
- Offline-first design for seamless performance
- Intuitive user interface for easy navigation
Xtreme VPN
Developed a secure VPN application for Android providing encrypted internet connectivity and online privacy protection.
- Built for Android with Java and Kotlin
- Covers connection state, server selection, and menu flows
- Shows experience shipping utility-focused consumer apps
Sentra Push-to-Talk
Developed a comprehensive push-to-talk communication application featuring AI-powered collaboration tools, real-time messaging, location sharing, and rich media capabilities for enhanced team coordination.
- Built for real-time communication and field coordination
- Supports secure group and individual collaboration flows
- Contributed to a larger AI and edge-enabled platform vision
DrinkWell Operator Platform
Created two Flutter-based mobile applications for managing water ATM operations and dealer-operator transactions. Pump Operator App: User registration, NFC card management, balance recharging, daily report generation. Dealer App: Fund transfers, transaction tracking, operator management, financial reporting.
- Built across Android and iOS deployment targets
- Supports operational teams in a real public-impact system
- Balances transaction flow, reporting, and usability
Experience
Progression from mobile application engineer to senior software engineer
Sep 2021 - Present
NybSys Pvt. Ltd.
Dhaka, Bangladesh
Senior Software Engineer
- Continue contributing to enterprise-grade Android, Flutter, and KMP applications on a part-time basis
- Maintain and support the CDAS Employee App (KMP) for DataNet, addressing bug fixes and incremental feature updates
- Provide technical guidance and mentorship to development teams
- Review code architecture and optimize existing mobile applications
Senior Software Engineer
- Architect and develop enterprise-grade Android, Flutter, and KMP applications utilizing clean architecture and SOLID principles
- Build a Kotlin Multiplatform mobile app for DataNet, a NybSys sister company operating in Eswatini, Lesotho and South Africa, targeting Android & iOS with shared business logic
- Integrated REST API, MQTT for IoT-connected features, gRPC (Protocol Buffers), GraphQL, and WebRTC communication layers across multiple projects
- Implemented CI/CD pipelines using Fastlane for automated distribution to Firebase App Distribution and Google Play Store
- Lead cross-functional Agile teams in delivering large-scale mobile projects on schedule
- Implement modern development practices including Jetpack Compose, Hilt and Koin as dependency injection, reactive programming with Kotlin Coroutines, Flow, RxJava and Dart Streams
- Conduct code reviews and mentor junior developers on best practices and design patterns
- Optimize application performance resulting in improved user experience and reduced crash rates
Software Engineer
- Developed and maintained Android and Flutter applications using clean architecture principles
- Integrated REST API and MQTT communication layers for IoT connectivity
- Collaborated with cross-functional teams to deliver mobile solutions on schedule
- Implemented modern development practices including Jetpack Compose and reactive programming
Sep 2020 - Sep 2021
XOR Geek
Dhaka, Bangladesh
Mobile Application Engineer
- Developed cross-platform mobile applications using Flutter and native Android frameworks
- Built and maintained RESTful APIs and admin panels using Laravel and PHP for mobile app backends
- Integrated third-party services including payment gateways, maps, and analytics platforms
- Collaborated with QA teams to ensure thorough testing and bug-free releases
- Participated in full software development lifecycle from requirement analysis to deployment
Core Skills
- Java
- Kotlin
- Dart
- JavaScript
- PHP
- Python
- Android
- Flutter
- Laravel
- Jetpack Compose
Education
B.Sc. in Computer Science & Engineering
Dhaka International University, Dhaka
June 2015 - Aug 2019
Grade: 3.74 out of 4
Additional Information
Languages: Bengali (Native), English (Professional Working Proficiency)
Interests: Building scalable mobile products, productivity-focused UI/UX, and exploring AI-driven and cross-platform technologies
Project Archive
A broader view of shipped apps across fintech, e-commerce, utility, education, and consumer products
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Hokkaido Classic Golf Club
Japanese Android member app with notifications, chat, QR check-in, payments, and usage statements.
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One-Click Order App
Flutter e-commerce app for company members to browse products and place repeat or catalog-based orders.
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One Click Order API & Admin
Laravel-based backend and admin panel powering product, member, and order management for the app ecosystem.
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Augmented Learn
AR-based Android learning app for preschool education with interactive recognition experiences.