Khaled A.
Khaled A.

Backend Developer

Actively looking · Member since 3 Nov 2026
Location
Cairo, Egypt
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Junior

About

Professional summary

I am a Backend Developer focused on building secure, scalable REST APIs and real-time systems with Node.js, Express.js, NestJS, Python, and FastAPI.

I work with PostgreSQL, MongoDB, Redis, SQLAlchemy, and Alembic to design reliable data layers, caching workflows, and database migrations.

I build authentication and authorization systems using JWT, refresh token rotation, Argon2, role-based access control, and rate limiting. I prioritize secure API design, error handling, pagination, and clean layered architecture.

I have developed backend projects including a team project management API, an AI-powered car management platform, e-commerce services, social media APIs, and anonymous messaging systems.

I use Docker, Docker Compose, Git, GitHub Actions, Pytest, Ruff, Postman, and Swagger to support containerized development, automated testing, API documentation, and CI/CD workflows.

I am currently completing a Bachelor of Science in Computer Science at Cairo University and continue expanding my backend engineering experience through hands-on projects and formal backend web development training.

Skills

24 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Application Utilities

Languages & Frameworks

Experience

Career history

Backend Developer - TeamFlow Personal Project

Built a Trello/Jira-like REST API with nine modules and more than 40 endpoints for teams, projects, tasks, and notifications.

Implemented JWT rotation, Argon2id password hashing, per-team RBAC, and FOR UPDATE row locking to protect against race conditions. Created more than 120 Pytest tests and a GitHub Actions CI pipeline with Ruff and Alembic checks. Used Celery and Redis for background email workflows and containerized the project with Docker.

Backend Developer - Auto Care Personal Project

Built the NestJS backend for an AI-powered car management platform with JWT authentication and role-based access control.

Developed vehicle, maintenance, fuel-log, GPS trip, support ticket, and Socket.IO notification modules. Integrated a Flask and Groq AI assistant microservice and containerized services with Docker.

Backend Developer - E-Commerce Backend Personal Project

Developed a modular NestJS and Node.js backend for product management, shopping carts, and order processing.

Added GraphQL alongside REST APIs to support flexible data querying. Implemented JWT authentication and real-time order updates using Socket.IO.

Backend Developer - Social Media Backend Personal Project

Built a Node.js and Express REST API with JWT authentication and role-based authorization.

Implemented posts, comments, likes, follow and unfollow functionality, and Socket.IO-based real-time notifications using MongoDB and GraphQL.

Backend Developer - Saraha App Backend Personal Project

Built an anonymous messaging backend using Node.js, Express, MongoDB, JWT, and Redis.

Designed RESTful APIs for message delivery, retrieval, inbox management, and account management. Applied Redis caching to reduce database load and improve response times.

Education

Learning history

Cairo University - Faculty of Science

Bachelor of Science, Computer Science

Expected graduation in January 2027. Relevant coursework includes Data Structures, Object-Oriented Programming, Computer Networks, Artificial Intelligence, and Compilers.

Route Academy

Backend Web Development Diploma, Backend Web Development

Completed a Backend Web Development Diploma in Cairo, Egypt.

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