Hi There!👋

I'm Ahmad


About

Backend Software Engineer

Results-driven Backend Engineer with expertise in designing and implementing scalable distributed systems and microservices architectures. Specialized in building high-performance applications using Go and Node.js, with a proven track record in:

  • API Design: Creating intuitive and efficient RESTful APIs with comprehensive documentation
  • Database Optimization: Designing efficient database solutions with advanced query optimization
  • System Architecture: Building scalable microservices and distributed systems
  • Payment Integration: Implementing secure payment systems with multiple providers

Demonstrated success in delivering complex projects from concept to production in both collaborative team environments and independent leadership roles. Passionate about creating elegant solutions to challenging technical problems while maintaining code quality and system reliability.

Professional Experience

Backend Engineer at TechBridge Lab

Aug 2024 - Present

Feedbq.io - Enterprise Feedback Management Platform

  • Architected and executed complete database migration from MongoDB to PostgreSQL with zero data loss, implementing Drizzle ORM for type-safe queries
  • Developed advanced integration system with bidirectional synchronization for 6+ project management platforms (Discord, Slack, Jira, ClickUp, Asana, Linear)
  • Implemented tiered subscription billing system with Stripe, featuring webhooks, customer portal, and automated invoice management
  • Designed intelligent caching architecture with Redis reducing API response times by 60%
  • Built sophisticated content moderation system with profanity detection
  • Established comprehensive API documentation using Swagger and Tsoa with automated TypeScript type generation

DubbingHub - AI-Powered Video Dubbing Platform

  • Architected distributed video processing system with Go microservices, AWS SQS message queues, and S3 storage for high-throughput media operations
  • Designed multi-stage pipeline for automated video transcription, translation, and dubbing with voice synthesis
  • Developed token-based billing system with tiered subscription plans and Stripe integration for automated payments
  • Built secure YouTube integration for direct video publishing with OAuth authentication
  • Engineered audio processing system with FFmpeg for voice isolation and background music preservation

Independent Freelance Engineer

Oct 2023 - Present

Leopard ERP & E-commerce Platform

  • Architected and developed a comprehensive ERP system with integrated e-commerce functionality
  • Implemented multi-currency financial management with automated exchange rate calculations
  • Built advanced inventory management with multi-warehouse support, stock transfers, and movement tracking
  • Designed complete supply chain system with vendor management, purchase orders, and returns processing
  • Integrated Paymob payment gateway supporting multiple payment methods
  • Developed sophisticated pricing engine with dynamic discounts and coupon management

Parent-Connect Social Platform

  • Developed intelligent parent matching algorithm based on children's schools, activities and location
  • Implemented real-time chat system with push notifications
  • Built secure authentication system with OAuth integration
  • Designed location-based services for local community building

Rakad On-Demand Car Wash Platform

  • Architected scalable Node.js/TypeScript backend with MongoDB for on-demand car wash service marketplace
  • Implemented geospatial service matching algorithm for efficient worker-to-customer assignment
  • Developed comprehensive order lifecycle management with real-time status updates and photo verification
  • Integrated multiple payment gateways (Paymob, Tabby, Tamara) with secure webhook handling
  • Built dynamic pricing system based on vehicle size, and service type with promotional code support
  • Designed worker earnings system with automated commission calculations and debt management

Skills

Here are my key technical skills and expertise:

Languages & Frameworks

  • Go, TypeScript, Node.js
  • Express.js, Nest.js, Gin

Database Technologies

  • PostgreSQL, MongoDB, Redis
  • Drizzle ORM, Mongoose

API Development

  • RESTful APIs, GRPC
  • Swagger/OpenAPI, Tsoa

Cloud & DevOps

  • AWS (EC2, S3, SQS)
  • Docker, CI/CD (GitHub Actions)

Authentication & Security

  • OAuth 2.0, JWT
  • HMAC Verification, Role-based Access Control

Payment Processing & Messaging

  • Stripe, Paymob, Tabby, Tamara
  • WebSockets, OneSignal

Education

Education

Bachelor's Degree in Computer Science

2020 - 2024

Faculty of Computers and Artificial Intelligence - Helwan University (FCAI) - Cairo, Egypt

  • GPA: 3.1 out of 4.0
  • Core Coursework:
    • Data Structures & Algorithms
    • Mathematics I, II, Discrete Mathematics, Probability (I)
    • Operating Systems I & II, Logical Design, Computer Networks
    • Programming Languages (I, II, III), Software Engineering (I, II)
    • Database Management, Database Design, SQL & NoSQL Technologies
    • Artificial Intelligence, Information Systems Security, Decision Support Systems
  • Graduation Project: Fixflex - Task Marketplace Platform
    • Designed and implemented scalable RESTful APIs using TypeScript and Node.js
    • Set up CI/CD pipelines with Docker Swarm deployment on AWS EC2
    • Implemented real-time chat using WebSockets and OneSignal notifications
    • Integrated Paymob payment gateway and Google OAuth 2.0
    • Built comprehensive testing suite using Jest

    Live Demo GitHub

Contact

Location:

Cairo, Egypt

Call:

(+20) 1066032817

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