Mobile Developer

Open to part-time
Bio

Kareem T. is a Mobile Developer with several years of experience in building cross-platform applications using Flutter. Kareem utilizes technologies such as Flutter, Dart, Firebase, and Google Maps to develop mobile applications, focusing on clean architecture and state management. He has experience integrating payment systems like Google Pay and Apple Pay, and emphasizes performance, scalability, and localization in his projects. At 5D Information Technology Solutions, Kareem independently developed a custom food delivery app featuring Google Maps and in-app payments. While at Qubefyn Company, he built a cross-platform POS system that gained widespread adoption in the Saudi market, serving multiple businesses and enhancing operational efficiency. Kareem holds a Bachelor's degree in Electronics & Communications Engineering from Zagazig University. He is well-suited for roles that involve developing high-performance mobile applications with a focus on clean architecture and user-centric design.

Expertise
FlutterGitJavaScript
Video Intro
Assessments
APPLICANT AVG · 54%KAREEM · 86%0255075100TopASSESSMENT SCORE (0–100)

General Coding and video Assessment

(86/100)
  • Debug and Enhance Weather Forecast FeatureMedium
  • Debug and Enhance Event Fetching FeatureMedium
  • Manage State in Flutter with Nested ComponentsMedium
  • Design as Efficient API Integration Strategy for E-CommerceMedium
Projects

PROTEINHOUSE - UAE

• Developed a comprehensive food delivery and nutrition app offering personalized meal planning, expert consultations, and lifestyle tracking. • Implemented Google Maps integration, multiple payment methods (Cards, Google Pay, Apple Pay), localization, and an interactive features. • Built with Flutter following clean architecture principles, ensuring scalability, maintainability, and high performance. • Managed the full product lifecycle: development, testing, optimization, and store deployment.

QubeCommerce App & Admin Panel

A dynamic investment app enabling users to explore, track, and manage financial deals.

QubeAnalytics SDK (Flutter Package)

Private advanced Flutter package for comprehensive user behavior tracking from entry to exit.

Speedo-life

Responsive e-commerce app with categorized browsing and localization.

Qube POS System

• Developed a robust POS & ERP platform for restaurants, cafés, and similar businesses, handling full order lifecycle, kitchen and inventory management, and role-based workflows for managers, waiters, chefs, and staff. • Implemented synchronized receipt printing across multiple printers. • Delivered a scalable solution that achieved widespread adoption and success in the Saudi market, serving multiple restaurants, cafés, and Egyptian outlets. • Focused on performance, reliability, and user-centric design, enabling businesses to streamline operations and improve efficiency.

Portfolio

Portfolio highlights my experience in building scalable solutions and user-friendly applications, reflecting my passion for clean code and efficient system design.

Experience

  1. Mobile Application Developer

    5D Information Technology Solutions· Enterprise & SaaSApr 2025 — Jan 2026
    • Independently built a custom food delivery app with Google Maps and in-app payments
    • Developed a corporate finance management app
    FlutterGoogle MapsGoogle PayApple PayCards paymentClean architecturestate managementLocalization

  2. Flutter Developer

    Qubefyn Company· Enterprise & SaaSDec 2024 — Jul 2025
    • Built custom e-commerce apps and a cross-platform POS system
    • Promoted to Team Lead for driving technical growth
    • Built investment app and private analytics flutter SDKs
    FlutteriOSAndroidpaymentDartanalyticsFirebaseLocalization

  3. Flutter Developer intern

    Iraq Soft Company· Enterprise & SaaSNov 2024 — Dec 2024
    • Designed and developed responsive applications with intuitive user interfaces
    Flutter

  4. Flutter Developer

    Bexel Inspection SoftwareFeb 2026 — Present
    • Contributed to building an offline-first inspection system capable of processing and managing large-scale data with high performance and reliability.
    FlutterDraftSqlite
Education

  1. Bachelor of Electronics & Communications Engineering

    Zagazig UniversityCairo, Egypt2019 — 2024
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