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Ramadan Eweis

Senior Backend Engineer
Cairo, Egypt  |  +20 120 700 8183  |  devramdanewis@gmail.com
Portfolio: ramadanewais.com  |  LinkedIn: linkedin.com/in/ramadan-ewais  |  GitHub: github.com/RamdanEwis

Professional Summary

Senior Backend Engineer with 5+ years of experience designing and scaling SaaS platforms and high-performance backend systems using PHP and Laravel. Specialized in building secure, modular, multi-tenant architectures, optimizing database performance, and delivering production-grade REST APIs. Proven record of handling complex third-party integrations and high-traffic workloads (2M+ visits) with a focus on clean architecture, SOLID principles, and long-term maintainability.

Technical Skills

Languages & Frameworks: PHP, Laravel, REST APIs, GraphQL fundamentals, JavaScript
Architecture & Design: Modular Architecture, Multi-Tenant SaaS, SOLID Principles, Design Patterns, Clean Code, Microservices fundamentals
Databases: MySQL, PostgreSQL, Database Design, Query Optimization, Indexing
Performance & Scalability: Queues, Background Jobs, Caching (Redis), High-Traffic Optimization, Bottleneck Troubleshooting
Integrations: Payment Gateways, Webhooks, Third-Party APIs, OpenAI, ElevenLabs, GoHighLevel, Telegram API
DevOps & Tools: CI/CD (GitHub Actions), Git, Linux Server Administration, Nginx, SSL/TLS, DNS, Cloudflare, Docker fundamentals

Professional Experience

Senior Backend Developer Sep 2023 - Present
Courseat (Education SaaS, Multi-Tenant) — Saudi Arabia (Remote)
  • Led the migration of a Laravel 8 Blade monolith (950+ templates) to a Laravel 12 modular API, a React 19 admin dashboard, and a Next.js 15 marketplace, serving 2M+ visits.
  • Architected a multi-tenant backend of 15 modules with database-per-tenant isolation (stancl/tenancy), exposing 480+ REST API endpoints across 120+ data models.
  • Integrated 7 payment gateways (PayTabs, Paymob, STC Pay, Tabby, Apple Pay), JWT authentication, Elasticsearch search, and Laravel Reverb real-time WebSockets.
  • Engineered per-tenant subdomain and custom-domain routing, with Redis caching and queued jobs scoped to each tenant's context.
  • Built a 99-file automated test suite (PHPUnit) and CI/CD pipelines on GitHub Actions to keep delivery fast and reliable.
Backend Developer Dec 2022 - Sep 2023
Ongoing Co. (ongoing-co.com) — Full-time
  • Delivered 6 production projects using PHP and Laravel, including multi-vendor e-commerce, a jobs and recorded-courses platform, and multiple single-vendor websites.
  • Built secure REST APIs serving web and mobile clients across 6+ production platforms.
  • Integrated 10+ third-party services and external APIs (payments, notifications, logistics) into business platforms.
  • Boosted performance and maintainability, reducing key query times by ~40% through refactoring and database optimization.
Backend Engineer (Freelance) Sep 2021 - Present
Upwork (Top Rated) — Part-time
  • Shipped 15+ production-grade backend solutions using PHP and Laravel with clean, scalable architecture, maintaining a Top Rated profile.
  • Built secure RESTful APIs with 20+ webhook-driven integrations for SaaS and multi-vendor platforms.
  • Integrated 8+ third-party systems and ensured reliable data synchronization with zero data-loss incidents.
  • Streamlined database queries, caching, and backend workflows, improving application response times by up to ~50%.
  • Managed 10+ Linux production servers, SSL certificates, domain/DNS configuration, and production hardening.

Selected Projects

Courseat - Multi-Tenant Education SaaS courseat.com
Laravel, Modular Architecture, React, Next.js
  • Led the migration from a Blade monolith UI to backend APIs with React dashboards, and built Next.js tenant websites for tenant domains and the central marketplace.
  • Designed a scalable multi-tenant architecture supporting subdomains and custom domains per tenant.
  • Engineered a modular backend structure to keep features isolated and maintainable.
  • Tuned platform performance for high-traffic and analytics workloads (2M+ visits).
3D/AR Menu SaaS Platform menuar.app
Laravel, REST APIs, Multi-Tenant
  • Built a multi-tenant SaaS platform for interactive restaurant menus with 3D dish models and AR "view on your table" experiences.
  • Developed Laravel backend services and REST APIs powering menu management, dishes, and per-restaurant subdomains.
  • Added multi-language support across 3 locales (EN/ES/AR) with dynamic menu rendering and taste-profile tagging.
  • Integrated 3D/AR model delivery and optimized in-browser rendering performance on mobile devices.
Telegram AI Automation Platform (Nutrition Doctor)
Laravel, Telegram API, OpenAI, ElevenLabs
  • Built an automation system managing Telegram groups, scheduled file delivery, and Q&A workflows.
  • Generated voice answers using ElevenLabs and intelligent text replies using the OpenAI API.
  • Served ~3 groups per month, each with 300+ members.
  • Exported all Q&A (text and voice) into Excel datasets to improve AI training data.
Gym Multi-Tenant SaaS Platform
Laravel, Custom Domain/Subdomain, GoHighLevel Integration
  • Built a multi-tenant gym management system with subscription workflows and member plans.
  • Built access-control workflows to manage gate access for active subscribers.
Saudi Community Pharmacies - Payment Module almujtamapharmacy.com
  • Contributed to payment module implementation and integration work in a production system.

Education

Cairo Higher Institute for Languages, Translation and Computer 2018
Bachelor's Degree in Information Systems

Courses & Certifications

  • MaharaTech (ITI MOOC) - Building Web Applications using PHP & MySQL
  • Udacity - One Million Arab Coders, Full Stack Web Development
  • Egypt FWD - Web Development Track