Mohamed Hussein — Senior Flutter Developer

About

Get to know me

A passionate developer with a unique background

Egypt — open to relocate

Senior Flutter Engineer with 7+ years in mobile development, currently building cross-platform apps at Numersalis (France, remote) for European clients across travel, sports-club management, e-commerce and e-learning.

Co-founder and lead Flutter developer at Waslny, an Egyptian ride-hailing startup, where custom engineering replaced expensive third-party services and cut operational costs by 60%.

Delivered 20+ production applications to the App Store and Google Play across healthcare, education, transportation and e-commerce, holding a 99.7% crash-free rate. Built on Clean Architecture and BLoC/Cubit, with offline-first caching that delivered 70% faster access in low-connectivity environments and zero security incidents across HIPAA-compliant healthcare apps.

A pharmacy degree sits behind the healthcare work — medical terminology, HIPAA and pharmaceutical workflows are domain knowledge I already have.

Location

Egypt — Open to Relocate

Languages

Arabic (Native), English (Professional)

Education

PharmD, Pharmacy — Sohag University (2024)

Status

Open to Work — Full-time & Freelance

Skills

Technical Expertise

Technologies and tools I work with daily

Drag to orbit

Mobile Development

FlutterDartAndroidiOS

Frontend / UI

Flutter WidgetsMaterial DesignCupertino DesignResponsive UI

State Management

BLoC/CubitGetXProvider

Architecture

Clean ArchitectureMVVMMVC

Backend Integration

RESTful APIsGraphQLFirebaseDio

Database & Storage

SQLiteFirestoreHiveSharedPreferences

Tools & DevOps

Git & GitHubGitHub ActionsFirebase DistributionCodemagic

Additional

FCM NotificationsGoogle MapsPayment GatewaysLocalization (i18n)

Method

How I build

Every production app is built on Clean Architecture and BLoC/Cubit, with offline-first caching that delivered 70% faster access in low-connectivity environments — and a 99.7% crash-free rate across 20+ releases.

01Presentation — widgets driven by BLoC/Cubit state

02Domain — entities and use cases, framework-free

03Data — repositories over REST, GraphQL, Hive

04Core — DI, networking, cache, SSL pinning, AES

Experience

Professional Journey

My career path and achievements

Senior Flutter Developer

Numersalis · Full-time

May 2026 — Present · France (Remote)

Building cross-platform apps for European clients across a location-based recommendation platform, a sports-club management system, e-commerce and e-learning
Integrated a saddle-mounted IoT sensor with the mobile app, processing real-time rider analytics (posture, balance, position) and syncing bidirectionally with the server database
Driving architecture decisions and code reviews within an international engineering team
Shipping production Clean Architecture and BLoC/Cubit code across iOS, Android, Web and Desktop

Co-Founder & Lead Flutter Developer

Waslny · Startup

February 2025 — Present · Egypt

Co-founded a ride-hailing startup and architected the dual-app ecosystem (passenger + driver) with real-time GPS tracking, trip management and live dispatch
Reduced operational costs by 60% by engineering custom solutions that replaced expensive third-party services — translating directly into higher driver earnings
Built on Clean Architecture with BLoC/Cubit, keeping the codebase testable and scalable as the product grew
Own full technical and product direction: architecture, release strategy and roadmap

Senior Flutter Developer

Freelance

January 2019 — January 2025

Delivered 20+ cross-platform applications published to the App Store and Google Play across healthcare, education, transportation and e-commerce
Maintained a 99.7% crash-free rate through Clean Architecture, BLoC/Cubit and disciplined testing
Owned end-to-end delivery — building backend services (Laravel, Supabase) alongside the mobile client, including database design, API development and server-side business logic
Designed offline-first architecture with local caching, achieving a 70% performance improvement in low-connectivity environments
Enforced security best practices (SSL pinning, AES encryption) for HIPAA-compliant healthcare apps, with zero security incidents
Established CI/CD pipelines with GitHub Actions and Firebase App Distribution, cutting release cycle time by 50%
Integrated RESTful APIs and third-party services including payment gateways, Google Maps, social authentication and analytics platforms

Android Developer (Native)

Freelance

January 2018 — December 2018

Built native Android applications in Java, establishing platform-level foundations in Activity/Fragment lifecycle, Material Design and the Android SDK
Those foundations continue to inform my cross-platform architecture decisions today

Portfolio

Featured Projects

Some of the apps I've built and shipped

HealthcareEducationTransportationE-commerce

Ride-Hailing Startup · Co-Founder

Waslny

Comprehensive ride-hailing application for passengers with real-time GPS tracking and route optimization. Custom engineering replaced costly third-party services and cut operating costs by 60%.

Real-time tracking·Fare estimation·In-app payments·Ratings & reviews·Bilingual (AR/EN)

FlutterBLoC/CubitGoogle MapsFirebase

Google Play App Store

Driver Application

Waslny Captain

Driver-side companion app for Waslny platform with live order management and earnings tracking.

Live ride requests·Navigation·Earnings dashboard·Background tracking

FlutterBLoC/CubitGoogle MapsFirebase

Google Play

Medical Information Platform

Emirates RX

Pharmaceutical information application to assist pharmacists in UAE with medication details and prescription preparation. HIPAA-compliant with SSL pinning; offline-first architecture delivers 70% faster access.

Medication database·Drug info lookup·Offline access

FlutterClean ArchitectureBLoC/CubitHive

Google Play App Store

Medical Laboratory App

Al-Khudairi Lab

Medical laboratory information system providing comprehensive test details, results, and promotional offers.

Test information·PDF reports·Push notifications

FlutterBLoC/CubitFirebasePDF Generation

Google Play

Educational Platform

Dr Course

E-learning platform for medical students with video courses and interactive quizzes.

Video courses·Interactive quizzes·Certificates

FlutterBLoC/CubitVideo PlayerFirebase

Google Play App Store

School Management System

EduNest

Comprehensive school management app for students, teachers, and parents with real-time notifications. Serves 1,000+ users; GraphQL cut data transfer by 40%.

Attendance tracking·Grade management·Parent-teacher comm

FlutterBLoC/CubitGraphQLSQLite

Google Play App Store

Open Source