Mobile Developer

Open to full-time
Bio

Youssof K is a Mobile Developer with several years of experience in developing scalable applications across domains such as e-commerce, e-learning, and social apps. Proficient in React Native, Expo, React, NestJS, and TypeScript, Youssof builds robust mobile and web applications. He integrates APIs and third-party services like RevenueCat and Firebase, and employs advanced state management with Zustand. His work includes implementing CI/CD pipelines to streamline deployment processes. At Swegit, Youssof led the migration of a React Native application to the latest version with Expo, enhancing system robustness and user engagement. In his role at Caters.sa, he developed a restaurant dashboard serving over 50 restaurants, significantly improving operational efficiency. Youssof holds a Bachelor of Software Engineering from the German University in Cairo. He is well-suited for roles that require building and optimizing mobile applications, particularly in dynamic and complex environments.

Expertise
ReactTypeScriptReact NativeNext.js
Assessments
APPLICANT AVG · 53%YOUSSOF · 80%0255075100TopASSESSMENT SCORE (0–100)

General Coding and Video Assessment

(80/100)
  • Book Availability Checker for Library Web ApplicationMedium
  • Debugging a JavaScript Mortgage Payment Calculator for Real Estate ApplicationsEasy
  • Manage State in Large React Native ApplicationsMedium
  • Average score on Optimize Performance in E-commerce React Native ApplicationMedium
Projects

Fresh Cart

React e-commerce website with favorites, cart flow, and Stripe payments.

Experience

  1. Full-Stack Developer

    Swegit (Paranormal Activities)· Social & Consumer AppsAug 2025 — Present
    • Led the migration from React Native 0.73 to the latest version with Expo
    • Migrated subscription handling to RevenueCat
    • Built haunted locations and social features
    React NativeExpoReactNestJsTypescriptZustandRevenueCatFirebase analyticsFireBase NotificationsCI/CDGithubGit

  2. Frontend Developer

    Caters.sa (E-commerce Catering Services)· E-CommerceApr 2024 — Mar 2025
    • Built a restaurant dashboard serving 50+ restaurants
    • Developed offline order management flows
    • Created a super admin panel
    ReactReal-time ordersDashboardsCMSNextJsRedux toolkitWebhooks

  3. Mobile App Developer

    Snacken (E-commerce Food Delivery)· E-CommerceMar 2023 — Apr 2024
    • Built the company’s mobile app from scratch using React Native and Expo
    • Optimized component rendering and state management
    • Built real-time delivery tracking
    React NativeExpoEASZustandReactNextJsNestJS

  4. Full-Stack Developer Intern

    CrossWorkers (E-learning)· EdTechSep 2022 — Feb 2023
    • Built and customized React UI components
    • Created and optimized .NET API endpoints
    • Refactored the video player UI
    React.NETDockerStyled ComponentsRedux toolkitAzure DevOPS
Education

  1. Bachelor of Software Engineering

    German University in CairoCairo, Egypt2020 — 2025
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