Available for Work

Ali
Khalid Backend Developer

Backend Developer with hands-on experience delivering production-ready systems — including a live ERP platform actively used by a real business. Specialized in Node.js, NestJS, and Express.js. Based in Menoufia, Egypt — working globally.

View Projects Get in Touch
4+
Production Projects
15+
Technologies Mastered
ERP
Live Client Deployment
Node.jsNestJSExpress.jsMongoDBTypeScriptSocket.IOAWS S3DockerJWTRedisGraphQLElectron.jsSQLiteC++PostgreSQL Node.jsNestJSExpress.jsMongoDBTypeScriptSocket.IOAWS S3DockerJWTRedisGraphQLElectron.jsSQLiteC++PostgreSQL
Capabilities

Technical
Skills

⚙️ Backend
Node.js NestJS Express.js GraphQL Socket.IO REST APIs Middleware Auth & AuthZ Session Mgmt
🗄️ Databases
MongoDB Mongoose MySQL Redis Indexing Aggregation Query Optimization Transactions
🔐 Security
JWT OAuth 2.0 Bcrypt Helmet Rate Limiting Joi Validation XSS Prevention 2FA Google One Tap
🛠️ Tools & Cloud
Docker AWS S3 Cloudinary Git/GitHub Postman Multer Nodemailer Microservices
💻 Languages
JavaScript TypeScript C++ SQL
📚 Currently Learning
PostgreSQL GraphQL (Advanced) System Design
🎨 Frontend
React.js HTML5 CSS3 JavaScript ES6+ Responsive Design
🤝 Soft Skills
Problem Solving Analytical Thinking Self-Motivated Team Collaboration Adaptability Time Management
Work

Featured
Projects

01
Saraha App

A robust and secure backend enabling users to create shareable profiles and receive anonymous or identified messages — featuring full auth, OTP verification, and a complete user lifecycle system.

  • Full user auth with access & refresh tokens + email OTP verification
  • Shareable profile links with image upload support via Cloudinary
  • Soft delete, restore & hard delete account lifecycle management
  • Phone encryption with crypto-js, rate limiting & security headers
Node.js Express.js MongoDB JWT Cloudinary Nodemailer Joi Helmet
02
Social App

Full-featured social media backend API built in TypeScript with a robust, modular architecture — featuring 40+ endpoints, real-time messaging, and cloud storage.

  • Built 40+ RESTful API endpoints covering user management, posts, and nested comments
  • Engineered secure user management with JWT/2FA authentication and password reset
  • Real-time one-on-one and group chat via Socket.IO under concurrent connections
  • Scalable file storage integrated with AWS S3 via Multer
TypeScript Node.js Express.js MongoDB Socket.IO AWS S3 JWT ↗
03
E-commerce Backend

Scalable e-commerce backend built with NestJS, clean architecture, and Redis caching for performance optimization — covering auth, inventory, payments, and refunds.

  • Designed 20+ API endpoints covering auth, product/inventory, cart, orders, and coupons
  • Applied Redis caching to high-traffic routes, reducing repeated database hits
  • Role-based authentication and authorization system
  • Integrated online payment processing and refund logic
NestJS Node.js MongoDB Redis JWT REST APIs ↗
Journey

Experience &
Education

Nov 2025 — Present
Freelance Backend Developer
Self-Employed · Remote
  • Delivered M5ZAN, a production-ready desktop ERP system for a real business client
  • Deployed the system for a 5-person team, replacing manual paper-based workflows
  • Optimized SQLite queries achieving 60%+ reduction in load times for financial reports
  • Automated sales, invoicing, payroll, and inventory workflows end-to-end
  • Built with Electron.js, Node.js, SQLite, and IPC architecture
Nov 2025 — Present
Frontend Intern
DEPI — Digital Egypt Pioneers Initiative · Remote
  • Responsive UIs and interactive web components
  • Team collaboration on frontend projects and code reviews
  • Modern web development best practices
Education
Menoufia University
Faculty of Computers and Information
B.Sc. Computer Science — 2027
Data Structures & Algorithms Core
Databases Core
Computer Networks Core
Operating Systems Core
Software Engineering Core
Oct 2023 — 2027 In Progress
Let's Talk

Get In
Touch

Open to freelance projects, collaborations, and full-time backend roles. Let's build something great.

alykhalid327@gmail.com
LinkedIn GitHub +20 102 312 9345