Builder of systems that hold under pressure.
I build backend systems, scalable APIs, and product-ready features with a focus on reliability, clean architecture, and practical problem solving.
- Name: Mohamed Ahmed
- Alias: hazalkoom
- Role: Junior Full Stack & Backend Engineer
- Location: Egypt
- Focus: backend systems, microservices, cloud infrastructure, compiler design
| AeroLock | SmartCart | StreamLang |
|---|---|---|
| Distributed booking engine designed to prevent double-booking with Redis locks and PostgreSQL transactional logic. Built around a three-service backend flow. | Production-style e-commerce platform deployed on AWS EC2 with queues, payments, real-time updates, and automated backend checks. | Custom programming language built with ANTLR4 featuring a lexer, parser, interpreter, and interactive playground. |
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| Repo | Repo | Demo |
| WildScope | Coffee Shop MVC | |
|---|---|---|
| Angular 21 single-page app with infinite scroll, live data integrations, and motion-based UI feedback. | Role-based MVC project with MongoDB + MySQL, analytics dashboard, and secure business workflows. | |
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| Demo | Repo |
┌──────────────────────────────────────────────────────┐
│ 📡 gRPC & Protobuf ████████░░░░ Communication │
│ ⚡ FastAPI ███████░░░░░ Async Python │
│ ☁️ AWS ██████░░░░░░ Deployment │
│ 🐘 PostgreSQL ███████░░░░░ Data modeling │
│ 🦀 Rust ████░░░░░░░░ Systems depth │
└──────────────────────────────────────────────────────┘
"The best error message is the one that never shows up." — Thomas Fuchs