Available for new projects

I build mobile apps that work everywhere.

Flutter developer at Yassir. I specialize in offline-first architectures, real-time sync, and apps that feel fast even with no connection.

View my work Resume

Years of experience

15+

Projects shipped

Youcef Goudjal, mobile developer — illustrated portrait with Flutter and tech motifs

Laghouat, AlgeriaGitHub LinkedIn m.goudjal.y@gmail.com

01.

About Me

I'm a mobile developer specializing in Flutter with a deep focus on scalable, offline-first architectures and real-time data systems. Currently contributing to Yassir's main application, I've built fault-tolerant apps from scratch with WebSocket integration, platform channels, and background synchronization. I'm also pursuing a PhD in Computer Science, researching performance optimization in IEEE 802.15.4 networks.

Mobile Developer

Flutter & Dart specialist building cross-platform apps with platform channels for native iOS (Swift) and Android (Kotlin) integration.

FlutterDartPlatform ChannelsCross-Platform

System Architect

Designing offline-first architectures with real-time sync, WebSocket communication, and fault-tolerant data layers.

Offline-FirstWebSocketsClean ArchitectureReal-Time

Researcher

PhD candidate researching performance optimization in IEEE 802.15.4 wireless sensor networks for IoT applications.

IEEE 802.15.4IoTPerformance Optimization

02.

Experience

2023 — Present

Mobile Developer · Yassir

Contributing to the development of the company's main application using Flutter.
Implemented real-time features using WebSockets and integrated MongoDB-based backend services for data persistence and synchronization.
Designed and implemented a scalable, fault-tolerant application architecture from scratch, improving performance, maintainability, and reliability.
Built an offline-first data layer with local caching, background synchronization, and conflict resolution strategies.
Integrated Flutter modules with native iOS (Swift) and Android (Kotlin/Java) codebases using platform channels.
Optimized application performance through efficient state management, asynchronous processing, and resource handling.

FlutterDartWebSocketsMongoDBSwiftKotlinPlatform ChannelsOffline-First

2019 — Present

Freelance Mobile Developer · Self-Employed

Built the Faciquest app, enabling the publication of dynamic surveys tailored to client needs.
Designed user-friendly interfaces and integrated real-time data collection systems.
Built DZPOS, a point-of-sale app with local database and inventory management.
Provided mobile development services for diverse projects, ensuring quality and performance.

FlutterDartFirebaseObjectBoxSQLiteUI/UX Design

2019 — 2022

Junior Mobile Developer · BFQuark

Developed and maintained mobile application interfaces.

FlutterDartMobile UI

03.

Featured Projects

+16

Featured Project

Yassir Food & Travel Apps

Offline-first architecture, real-time sync, and performance optimization

Contributed to Yassir’s mobile ecosystem across food delivery and travel products. Yassir is a leading super app in North Africa, combining ride-hailing, food delivery, grocery shopping, and payments into a single platform used by millions.

FlutterDartRealmMongoDBSocket.IOServer-Sent Events+6

Case Study Yassir Yassir Food Delivery

Featured Project

Shibr PropTech Platform

Fractional real estate ownership & investment platform

Shibr is a Saudi PropTech platform enabling fractional ownership in off-plan, income-generating real estate projects. The platform provides a secure, transparent, and Sharia-compliant digital investment experience for individuals.

FlutterDartREST APIsAuthenticationState ManagementSecure Storage+1

Case Study Shibr

Featured Project

Al-Zahraa Spa Website

Luxury spa landing page with booking flow

Built a modern website for Al-Zahraa Spa, a luxury wellness and beauty brand offering facials, massages, body treatments, and wellness services. The website presents services, pricing, testimonials, contact details, and a guided booking experience in a polished responsive interface.

Next.jsReactTypeScriptTailwind CSSVercelResponsive Design+2

Case Study Al-Zahraa Spa

View All Projects

04.

Architecture Highlights

Offline-First Sync

Local caching with background synchronization and conflict resolution for reliable operation without connectivity.

WebSocket Real-Time

Live data streaming with WebSocket channels for instant updates in ride-hailing and delivery workflows.

MongoDB Integration

Backend persistence with MongoDB, supporting complex queries, aggregation, and data synchronization.

Platform Channels

Native iOS (Swift) and Android (Kotlin/Java) integration via Flutter platform channels for device-specific APIs.

Conflict Resolution

Strategies for handling data conflicts during offline-to-online sync, ensuring data consistency across devices.

State Management

Riverpod and Bloc patterns for predictable, testable state management in complex mobile applications.

05.

Skills & Technologies

Languages

DartJavaPythonTypeScriptJavaScriptSwiftKotlin

Mobile Development

FlutterAndroidiOSPlatform ChannelsRiverpodBloc / CubitOffline-First AppsPerformance Optimization

Frontend Development

ReactNext.jsTypeScriptTailwind CSSResponsive DesignLocalizationVercel

Databases & Local Storage

MongoDBSQLiteCloud FirestoreRealmObjectBoxHiveSecure StorageFile-Based Storage

Networking & Real-Time

REST APIsWebSocketsSocket.IOServer-Sent EventsJSON PatchFirebasePush Notifications

Architecture & Patterns

Clean ArchitectureMVVMRepository PatternOffline-First DesignState ManagementCaching StrategiesReal-Time Synchronization

AI & Image Processing

PythonOpenCVFace DetectionFace MatchingImage Processing

Cloud & Integrations

S3 BucketsFirebaseGoogle MapsAmadeus APIsAuthenticationPayments Integration

Tools

GitCI/CDFigmaAndroid StudioXcodeVS CodeVercel

06.

Research & Education

IEEE 802.15.4 Network Performance

PhD in Computer Science · University of Bejaia, Algeria

Researching performance evaluation and optimization techniques for IEEE 802.15.4 wireless sensor networks, focusing on improving throughput, reducing latency, and enhancing energy efficiency in low-power IoT communication protocols.

PhD in Computer Science

University of Bejaia, Algeria

2022 — Present

Research focus: Performance evaluation and optimization in IEEE 802.15.4 networks.

Master of Computer Science

University of Laghouat Ammar Thliji, Algeria

2016 — 2022

Bachelor of Mathematics

Hadj Aissa High School, Laghouat, Algeria

2015 — 2016

07. What's Next?

Let's Work Together

I'm currently open to new opportunities and collaborations. Whether you have a project in mind, a question, or just want to connect — my inbox is always open.

Say Hello