$ cat about.json{
"name" : "Mohamed Ahmed",
"alias" : "hazalkoom",
"location" : "Egypt 🇪🇬",
"role" : "Junior Full Stack & Backend Engineer",
"education" : "Software Engineering Diploma — EPIC Institute of Technology",
"interests" : ["Backend Systems", "Microservices", "Compiler Design", "Cloud Infrastructure"],
"currently" : {
"building" : "AeroLock — High-performance distributed flight booking engine",
"learning" : ["gRPC & Protocol Buffers", "FastAPI", "Microservices Architecture"],
"exploring" : "Cloud-native patterns on AWS"
},
"philosophy": "First, solve the problem. Then, write the code.",
"open_to" : "Junior backend / full-stack roles and real-world collaborations"
}| 🔒 AeroLock | 🛒 SmartCart | 🦀 StreamLang |
|---|---|---|
| Distributed flight booking engine preventing double-booking using Redis distributed locks and PostgreSQL ACID ledger. 3-service gRPC microservices architecture. | Production-grade e-commerce platform deployed on AWS EC2. Redis job queues, Paymob payment gateway, real-time Socket.io updates, and 200+ automated tests. | A fully custom programming language built from scratch with ANTLR4 — lexer, parser, interpreter, and a live playground deployed on Hugging Face. |
     |
   |
  |
 |
|
 |
| 🔭 WildScope | ☕ Coffee Shop MVC | |
|---|---|---|
| High-performance Angular 21 SPA with infinite scroll, real-time animal data from API Ninjas & Wikimedia Commons, and AOS/Lottie animations. | Full MVC application with a dual-database system (MongoDB + MySQL), Chart.js analytics dashboard, and Role-Based Access Control (RBAC). | |
  |
  |
|
 |
|
┌──────────────────────────────────────────────────────┐
│ 📡 gRPC & Protobuf ████████░░░░ Microservices │
│ ⚡ FastAPI ███████░░░░░ Async Python │
│ ☁️ AWS ██████░░░░░░ Deploy & scale │
│ 🐘 PostgreSQL ███████░░░░░ DB design pro │
│ 🦀 Rust ████░░░░░░░░ Systems depth │
└──────────────────────────────────────────────────────┘
"The best error message is the one that never shows up." — Thomas Fuchs