01 / 03Production2025 · Qatar
Mushaf Qatar
Official Qur'an application, Ministry of Awqaf and Islamic Affairs.
50K+
Downloads
4.5★
App rating
4
Locales
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About
Hussen, apps
designed around people
Flutter developer with 3+ years shipping production iOS and Android applications, with eight apps live on the App Store and Google Play across five markets. Sole author of six codebases totaling roughly 250,000 lines of Dart. I work with feature-first Clean Architecture, BLoC/Cubit and Riverpod, offline-first data layers, and payment integrations across RevenueCat, Telr, and wallet gateways. I build real-time features including WebRTC voice, SSE streaming, and Firebase Cloud Functions — and deliver Arabic-first RTL products for Saudi, Iraqi, Egyptian, Palestinian, and Qatari markets.
3+
Years of experience
8
Live on stores
250K
Lines of Dart
5
Markets served
SELECTED APPS
Featured Work
Three production Flutter apps on the App Store and Google Play.
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Discover The Work
That Fits Your Product.
Explore my projects and learn about the platforms, architectures and experiences behind each one.
LinkedWithin
AI-powered life management platform.
Balonia
Social live-streaming and real-time communication platform.
Kayan Cafe
Multi-tenant cafe management SaaS.
Hunter Rank
Solo Leveling–inspired habit tracker with RPG progression.
MisterCar
Car services and licensing platform for Saudi Arabia.
Dar Al-Asas
Gold investment and wallet platform for Iraq.
E-Shabni (Pull Me)
Ride-hailing platform shipped as two published apps.
Academex
Academic community platform with AI assistant.
Experience
Professional Journey
Roles, contributions and milestones that shaped how I build software.
Flutter Developer
Wepioners · Gaza, Palestine (Remote)
May 2025 — Present
- Lead mobile developer on the product portfolio, delivering four production Flutter apps from architecture through App Store and Google Play release
- Built BALONIA (16,000+ users) with LiveKit voice rooms, Socket.IO messaging, virtual coin economy, and RBAC on a NestJS backend
- Built Eduba, a spaced-repetition learning app (~33k Dart LOC) with Anki-compatible SRS, six card types, and RevenueCat IAP
- Built Dar Al-Asas, a gold-investment wallet platform for Iraq with a TypeScript Firebase backend (6 HTTPS callables, 2 Firestore triggers)
- Built E-Shabni as two published apps (passenger and driver) with Haversine matching, Firebase RTDB tracking, and WhatsApp OTP
- Standardized delivery on feature-first Clean Architecture with Cubit, GetIt, go_router, and dartz Either across all products
Freelance Flutter Developer
Remote — Australia, Qatar, Saudi Arabia, Egypt, Palestine · Remote
Oct 2025 — Present
- Delivered five production applications for international clients, owning each project end to end across time zones
- LinkedWithin (Australia) — AI life-management platform, 22 modules and ~83k Dart LOC with WebRTC voice coach and SSE streaming chat
- Mushaf Qatar (Ministry of Awqaf) — official Qur'an app; search and worship feature stream in a 1,000+ commit codebase
- Kayan Cafe (Egypt) — bilingual cafe-management SaaS, 18 modules and ~68k Dart LOC on Laravel Sanctum API
- MisterCar (Saudi) — car services platform with Telr payments, installment plans, and Google/Apple sign-in
- MMB (Nablus) — migrated a 500k+ LOC FluxStore template to hand-written Clean Architecture
Data Entry Volunteer
International Medical Corps (IMC) · Gaza, Palestine
Jul 2023 — Sep 2024
- Managed medical and aid-distribution data during the humanitarian crisis under strict confidentiality protocols
- Collaborated with international teams on accurate, timely data entry under severe operational constraints
Open-Source Contributor
Bond Framework (Flutter) · Remote
Jun 2023 — Aug 2023
- Contributed to the core library, improving state management, authentication, and theming components
Mobile Application Developer
Developer Plus Company · Gaza, Palestine
Jan 2023 — Jul 2023
- Architected and shipped 4+ commercial Flutter applications with 10,000+ combined downloads
- Mentored 3 junior developers on Flutter best practices, Clean Architecture, and code review standards
- Established the team's code review process and reusable widget library, reducing feature development time
- Integrated Firebase Realtime Database, push notifications, and authentication; built offline-first storage with SQLite and Hive
Technical Skills
Mobile
- Flutter (Dart 3)
- Android & iOS
- Material 3
- Platform channels
- RTL layouts & accessibility
Architecture
- Clean Architecture
- Feature-first modularization
- Repository pattern & use cases
- SOLID & dependency injection
- go_router & GetIt
State Management
- flutter_bloc (Cubit & BLoC)
- Riverpod
- Provider & GetX
- dartz Either & sealed states
Networking & Real-Time
- REST, Dio, SSE streaming
- WebRTC & Socket.IO
- LiveKit voice rooms
- RFC 7807 & Idempotency-Key
Backend & Cloud
- Firebase (Auth, Firestore, FCM, Functions)
- TypeScript Cloud Functions
- NestJS & Laravel Sanctum APIs
- GCP Cloud Run
Data & Offline
- Drift / SQLite & Hive
- Offline-first sync queues
- flutter_secure_storage
- TTL cache & paginated eviction
Payments
- RevenueCat & in-app purchases
- Telr XML Mobile API
- Stripe web checkout
- Wallet ledgers & installments
Quality & DevOps
- Unit, widget & golden tests
- GitHub Actions CI
- Product flavors & FVM
- App Store Connect & Play Console
Education & Certifications
Bachelor of Information Technology
Islamic University of Gaza · Gaza, Palestine
Sep 2020 — Feb 2024
GPA 89.39 / 100 (Excellent). Completed the degree during the 2023 war in Gaza under severe disruption to campus operations. Coursework: Advanced Software Engineering, Mobile Application Development, Database Management Systems, Web Technologies, OOP.
