Wassef Hassine

Senior

Registration: 18.02.2026

Specialization: Flutter Tech Lead

— Passionate Flutter developer with expertise in user-centered design and mobile app performance optimization. — With a deep understanding of best practices in mobile development, I strive to create intuitive and high-performing user experiences. — Versatile and always up-to-date with the latest trends, I adapt to project requirements to deliver innovative and effective solutions.

Portfolio

Digitrame (Invoicing & Quotes Platform)

● Led the development of Digitrame, an enterprise-grade invoicing and billing management application designed for small businesses, freelancers, and entrepreneurs. The app provides seamless access to essential financial tools, transforming how users create quotes, manage invoices, and track payments. It delivers a professional experience covering everything from customizable invoice templates and automated calculations to client management, expense tracking, and financial reporting. ● Worked independently on the iOS application, collaborating with the backend team and product stakeholders to deliver a polished, intuitive financial management solution that adheres to French accounting standards and tax regulations.

Dukhan Bank

● Led the development of Dukhan Bank's mobile banking application, Qatar's leading Sharia-compliant digital banking platform serving over 500,000 clients. The app provides seamless access to Islamic banking services, including account management, fund transfers, bill payments, and investment products, delivering a secure and intuitive banking experience for customers across Qatar. ● Collaborated with a cross-functional team of designers, backend engineers, and QA specialists to deliver a high-performance, feature-rich mobile application that adheres to both Islamic banking principles and modern security standards.

My TT (Tunisie Telecom)

● Led the development of My TT, Tunisia's premier telecom mobile application serving over 8 million active users nationwide. The app provides seamless access to 30+ telecom services, transforming how customers manage their mobile accounts, subscriptions, and payments. It delivers a personalized experience for prepaid and postpaid users — covering everything from real-time balance tracking and recharge to bill payments, multi-line management, and customer support. ● Collaborated with a cross-functional team of 12 members (8 developers, 2 designers, and 2 QA specialists) to establish technical excellence, deliver feature-rich modules, and transition toward a scalable, high-performance mobile architecture.

Skills

Flutter

Mobile App Development

Tech Lead

Mobile Architecture

Dart

Java

Swift

Architecture Patterns

OOP

Firebase

SQLite

RealM

Git

Trello

ClickUp

GitScrum

Work experience

Flutter Tech Lead

since 08.2025 - Till the present day |Servini ERP Solution

Flutter, CI/CD

● As Flutter Tech Lead for Servini ERP Solution, I architected a comprehensive restaurant management platform from the ground up, achieving 95%+ code reusability across iOS, Android, and web. ● Designed and developed four specialized role-based interfaces: a point-of-sale system, inventory management module, kitchen display system (KDS), and real-time analytics dashboard. ● Focused technical leadership on implementing an offline-first architecture with WebSocket synchronization maintaining sub-200ms response times, integrating multiple payment gateways (Stripe, PayPal, local banks), thermal printers, and QR code systems. ● Established CI/CD pipelines for automated deployment across App Store, Google Play, and web platforms. ● Translated complex business requirements into technical specifications through direct client collaboration, ensuring the solution addressed real operational challenges in the hospitality industry.

Flutter Tech Lead

01.2023 - 08.2025 |Proxym

Flutter

● As Flutter Tech Lead in financial technology, I architected secure, high-performance banking applications serving 100,000+ active users. ● Led development of digital banking solutions including mobile wallets, payment platforms, and investment management apps, implementing robust security frameworks with biometric authentication, end-to-end encryption, and PCI-DSS compliance. ● Designed scalable architectures for real-time transaction processing, establishing comprehensive testing strategies, and ensuring regulatory adherence across multiple markets. ● Drove technical excellence through code reviews, mentored teams on fintech best practices, and collaborated with product and compliance stakeholders to balance innovation with risk management. ● This experience sharpened my expertise in building trust-critical applications where security, performance, and regulatory compliance are paramount.

Senior Flutter Consultant

01.2025 - 04.2025 |Access Content Agency

Flutter

● As Senior Flutter Consultant for Access Content Agency, I designed and delivered a premium mobile application for Studio 44, a boutique Pilates studio. ● Developed a full-featured iOS and Android solution featuring a comprehensive class booking system for private and semi-private sessions, real-time availability tracking for specialized equipment (Reformer, Wunda Chair, Cadillac), secure user authentication, and payment integration for packages and memberships. ● The application included push notifications for class reminders, an in-app schedule viewer with filtering options, and a responsive UI reflecting the studio's premium brand identity. ● This project showcased my ability to translate boutique business requirements into elegant mobile solutions that enhance customer engagement and streamline operations.

Mobile Developer

11.2022 - 01.2024 |Grant's Tech

Flutter, Swift

1. HeadsApp. ● Updated the codebase to ensure null safety and stay up to date with the Flutter SDK. ● Internationalized the application. ● Ensured the application is bug-free. ● Applied Clean Architecture and used Get_it for dependency injection. ● Utilized Bloc for state management. ● Used auto_route as the routing solution. 2. Digitrame. ● Significant contribution to the improvement and stability of the Digitrame Swift application. ● Integrated a groundbreaking feature using the Zoho API, providing the application with robust digital signature capabilities via Zoho Sign. ● Developed a secure document-sharing feature using Zoho Work Drive API, enabling seamless client file management.

Flutter Mobile Developer

02.2022 - 01.2023 |WIMOBI

Flutter

● At WIMOBI I led the design and delivery of innovative mobile solutions across iOS and Android platforms. ● Spearheaded the development of consumer-facing applications and enterprise mobility solutions, architecting scalable, high-performance apps that served thousands of daily users. ● Drove technical excellence through code reviews, established mobile-first architectures, and championed modern development practices including reactive programming, modular design patterns, and automated testing frameworks. ● Collaborated closely with cross-functional teams to translate complex business requirements into intuitive mobile experiences, while mentoring junior developers in best practices for mobile engineering. ● This journey deepened my expertise in native and cross-platform development, performance optimization, and creating mobile solutions that balance technical sophistication with exceptional user experience.

Educational background

Computer Science (Bachelor’s Degree)

2019 - 2022

ISET Mahdia

Languages

EnglishProficientFrenchProficientArabicNative