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.
Senior Software Engineer • Android • Flutter • Kotlin Multiplatform (KMP/CMP) • 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 5+ years of experience delivering Android, Flutter and Kotlin Multiplatform (KMP/CMP) 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 5+ years of experience specializing in native Android, Flutter, and Kotlin Multiplatform (KMP/CMP) mobile application development. Proven expertise in building high-performance, scalable mobile applications using clean architecture principles. Skilled in REST API, MQTT, GraphQL, gRPC, 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
- KMP/CMP: Kotlin Coroutines & Flow, Ktor, Koin, Kotlinx Serialization, Compose Multiplatform
- 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 (KMP) and Compose Multiplatform (CMP) 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/CMP
- Supports deduction management and loan workflows
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
Senior Software Engineer · NybSys
- Architect and develop enterprise-grade Android, Flutter, and KMP/CMP applications utilizing clean architecture and SOLID principles
- Building a Kotlin Multiplatform (KMP/CMP) 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
Sep 2020 - Sep 2021
Mobile Application Engineer · XOR Geek
- 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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Nikah Matrimony
Android matrimony product built in Kotlin with matching, messaging, and marriage register discovery flows.
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Hokkaido Classic Golf Club
Japanese Android member app with notifications, chat, QR check-in, payments, and usage statements.
Project link -
One-Click Order App
Flutter e-commerce app for company members to browse products and place repeat or catalog-based orders.
Project link -
One Click Order API & Admin
Laravel-based backend and admin panel powering product, member, and order management for the app ecosystem.
Project link -
Augmented Learn
AR-based Android learning app for preschool education with interactive recognition experiences.