Software Engineer & Backend Developer
Engineering high-concurrency backend architectures, sub-50ms database pipelines, and resilient multi-tenant systems.
<?php
namespace App\Core\Optimization;
class BackendEngine {
public function getSystemHealth(): array {
return [
'uptime' => '99.9%',
'query_latency' => '-30%',
'downtime_reduced' => '40%',
'gateways_active' => ['Paymob', 'Stripe'],
'database_clusters' => ['MySQL', 'Oracle', 'Redis']
];
}
}Real-world systems aren't built on buzzwords. Explore live database query tuning metrics and multi-tenant pipeline tracing.
EXPLAIN ANALYZE
SELECT shipments.*, hubs.name as hub_name
FROM shipments
LEFT JOIN hubs ON shipments.hub_id = hubs.id
WHERE shipments.status = 'in_transit'
AND shipments.destination_city = 'Cairo'
ORDER BY shipments.updated_at DESC
LIMIT 50;Battle-tested multi-tenant platforms, high-throughput shipping and POS architectures, and zero-downtime database migrations.
A comprehensive solution built to automate and optimize logistics workflows, from shipment creation to final delivery, reducing operational bottlenecks and improving transparency.
A robust software suite designed to digitize and streamline freight operations, enhancing efficiency and reducing manual efforts.
A modern POS platform designed to streamline in-store sales, inventory management, and payment processing, improving efficiency for retail operations.
A multi-tenant platform built to empower restaurants with online ordering, digital payments, and centralized management, enabling scalability across multiple branches and brands.
Graduation project (Grade: Excellent): A Q&A website that uses AI for sentence matching to suggest similar questions and prevent redundancy.
Measured achievements and real-world impact shipped in high-scale enterprise environments.
Leading core backend engineering for enterprise logistics, shipping platforms, and payment orchestration.
High-performance backend runtimes, enterprise relational databases, specialized International and regional payment gateways, and real-time event protocols.
Deep production experience integrating Libyan payment rails (T-lync Pay, E-Zone Pay in Libyan Dinars LYD), Egyptian market leaders (Paymob), and global payment infrastructure (Stripe). Built with cryptographically signed HMAC-SHA256 webhooks, idempotency keys to eliminate double-charges, and automated settlement reconciliation.
Production integrations of Libyan gateways (T-lync Pay, E-Zone Pay), Egyptian processors (Paymob), and global infrastructure (Stripe) with HMAC webhook security.
Egypt & MENA • Credit/Debit Cards, Mobile Wallets & Kiosks
Global Processor • 3D Secure 2.0, Cards & Multi-Currency
Libyan Gateway • LYD Dinars, Local Cards & Webhooks
Libyan Gateway • Electronic Clearing & Digital Commerce
Robust application runtimes, clean MVC/Repository architectures, and object-oriented design patterns.
PHP 8+ Strict Types, JIT Compiler & Object-Oriented Architecture
Automated ETL Pipelines, Semantic AI Scripts & Model Serving
Algorithmic Foundations, Memory Management & University Honors
15+ Production Systems • Repository Pattern, Observers & Queues
SOLID Principles, Design Patterns & Computational Complexity
Custom stored procedures, database triggers, views, and composite covering index execution plan tuning.
Complex Automation, Audit Triggers & Latency Index Tuning
High-Density Enterprise Storage & Warehouse Management Operations
Zero-Config Embedded File Storage with Concurrent WAL Mode
-30% Latency Drop, EXPLAIN ANALYZE & Redis In-Memory Layer
Schema-driven GraphQL AST queries, versioned RESTful contracts, and isolated multi-tenant schemas.
Type-Safe AST Query Schemas, Eager Resolvers & Mutations
RFC-Compliant Microservice Contracts & Token-Based Auth
Dynamic Tenant Connection Pools & Data Isolation Guarantees
Non-blocking Dynamic Client Sync & Microtask Scheduling
Asynchronous job queues, official WhatsApp messaging webhooks, and Pusher real-time WebSocket channels.
Automated Dispatch of Delivery Alerts, Invoices & Two-Factor OTPs
Real-time POS Cashier Updates & Kitchen Order Display Broadcasts
Feature Branching, Rebase Workflows & CI/CD Deployment Hooks
Responsive layouts, Tailwind design tokens, and smooth client-side state synchronizations.
Modern ESNext Features, Async/Await & Event-Driven DOM Handling
Semantic Architecture, Accessible Forms & Cross-Browser Styling
Atomic Design Systems, Fluid Typography & Dark Mode Themes
Architectural patterns, scalable data pipelines, and production backend systems engineered for reliability.
Designing scalable GraphQL and RESTful APIs with fine-grained schema resolvers, caching layers, and real-time event subscriptions.
Optimizing relational database engines (MySQL, Oracle, SQLite) using custom stored procedures, triggers, views, and index profiling for sub-second responses.
Engineering robust multi-tenant architectures allowing isolated client branches to scale seamlessly over unified shared infrastructure.
End-to-end integration of secure digital payment gateways (Stripe, Paymob, T-lync Pay) with automated reconciliation and instant WhatsApp alerts.
Grounded in computer science fundamentals, relational algebra, and hands-on system building.
Software Engineer & Backend Developer
I build backend systems designed to withstand high concurrency and messy real-world traffic. My day-to-day focuses on tuning relational database engines (MySQL & Oracle), architecting resilient GraphQL & REST APIs, and engineering multi-tenant platforms handling digital payments and freight logistics. I care about deterministic behavior, sub-50ms p95 latencies, eliminating N+1 bottlenecks, and writing clean, battle-tested codebases that production systems can rely on at 3 AM.
Benha University • Benha, Egypt
09/2018 – 07/2022
Graduation project grade: Excellent (AI-assisted Q&A platform for sentence matching and question recommendation).
Honest feedback from engineering managers, colleagues, and collaborators on backend performance, reliability, and technical execution.
Have you worked with Moataz on a backend service, database optimization, or software engineering project? Share your honest feedback using the quick 4-field form.
Have a project in mind, need backend architectural consulting, or exploring software engineering opportunities? Send a message directly.
Fill in the details below and I'll get back to you within 24 hours.