Backend Engineer

Mahmoud Youssef

Java • Spring Boot • Distributed Systems

6+ Backend Projects Java 21 & Spring Boot 3 Distributed Systems & Payments Open to Remote Work

About Me

Core Stack

Java, Spring Boot
Spring Security, JWT/RBAC
MySQL, PostgreSQL, Redis
Docker, Flyway Migrations
REST API Design, SOLID Principles

Education

El Shorouk Academy, Cairo, Egypt
Bachelor of Science (B.Sc.)
Computer Science - Final Year
Expected Graduation: June 2026

Availability

📍 Cairo, Egypt
⚡ Available Immediately
🌍 Remote / Hybrid
🕐 GMT+3

Who I Am

Backend Engineer focused on Java & Spring Boot.
Built 6+ production-grade backend systems — e-commerce, logistics, workforce management, and AI-powered applications.
Experience with Redis, Docker, PostgreSQL, and event-driven architecture.
Interested in distributed systems and payments infrastructure.
Led the backend security layer (JWT, RBAC, Spring Security) on CalCounter — a calorie-tracking app with AI food recognition, built with a teammate and live with real users.

Final-year Computer Science student at El Shorouk Academy, actively applying for Junior Backend Developer roles — remote or on-site. Outside of code: story-driven single-player games, web novels and manga, and recently picked up chess.

check out my

Projects

Distributed URL Shortener

Redis-based distributed URL shortener with deterministic sharding, cache-aside reads, and atomic per-IP rate limiting.

CalCounter — AI-Powered Nutrition Tracking

AI-powered nutrition tracking app with food photo recognition, JWT-secured API, and real user deployment.

LogiBridge — B2B Order Management Platform

B2B logistics platform featuring dual-layer idempotency, optimistic and pessimistic locking, and transactional consistency across concurrent order workflows.

E-Commerce Backend System

Event-driven backend with idempotent Stripe payment webhooks and two-phase inventory reservation.

Attendance Management API — QR-Based Workforce Tracking

QR-based workforce attendance tracking with HMAC-signed sessions and scheduled reconciliation jobs.

University Timetable Scheduler

Full-stack academic scheduling system with constraint-based generation and multi-format export.