Youssef K.Gameel
Youssef K.Gameel

Backend Engineer

Open to offers · Member since 4 Nov 2026
Location
Egypt
Desired salary
Unspecified
Work preference
Remote Only / Full Time, Contract
Experience level
Mid

About

Professional summary

I am a Backend Engineer with more than one year of experience delivering backend features from requirements gathering through production deployment and post-release support. I specialize in building reliable, secure, multi-tenant SaaS systems using Node.js, TypeScript, JavaScript, Express, and NestJS.

I have hands-on experience with authentication, authorization, role-based access control, subscriptions, payment integrations, database design, and performance optimization. My work includes improving a production database query from 40 seconds to approximately 250 milliseconds for a platform serving more than 3 million users.

I enjoy designing scalable backend architectures, including microservices, event-driven workflows, multi-tenancy, and country-specific configuration systems. I have worked with Kafka and RabbitMQ for asynchronous booking, wallet, and reward-related workflows.

I am experienced with relational and NoSQL databases including PostgreSQL, MySQL, MongoDB, SQLite, SQL Server, and Redis. I focus on improving query performance, applying indexes appropriately, maintaining data integrity, and creating safe operational workflows such as imports, backups, and restores.

I also work with Docker, Docker Compose, Kubernetes, CI/CD pipelines, Linux, GitHub Actions, and cloud-hosted services. I have deployed backend services and containerized multi-service applications with secure networking, health checks, persistent storage, and secrets management.

I am based in Egypt and open to remote opportunities worldwide. I value clear communication, ownership, practical problem-solving, and collaborating with product, frontend, mobile, and internal support teams to deliver impactful software.

Skills

27 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Collaboration

Languages & Frameworks

Experience

Career history

Backend Engineer Wareef Estate

Own backend authorization, authentication, subscriptions, and support operations for Raba CRM, a live multi-tenant real estate SaaS serving 20 tenants and 600 users. Built a configuration-driven Excel import pipeline with safe re-imports, undo functionality, and logging for data gaps.

Improved system reliability and performance by reducing daily email usage by 57%, implementing queued delivery and recipient prioritization, and adding a shadow mode for strict permission rollout. Reduced a sales report from 10.1 seconds to 85 milliseconds for 20,000 clients, rebuilt backup reporting, passed an 8/8 R2 restore test covering 40,513 clients, and resolved 47 client support tickets.

Backend Engineer Almatar

Improved a production database query from 40 seconds to approximately 250 milliseconds, achieving a 160x speed improvement through database indexing on a platform serving more than 3 million users. Built a multi-tenant, country-level configuration system for core booking flows, enabling region-specific rules and add-ons across multiple brands.

Developed event-driven workflows with Kafka and RabbitMQ for booking and wallet operations, as well as event-based microservice communication for discount reward rules. Integrated a payment service for a new brand launch and refactored legacy services to align with established microservice conventions.

Backend Engineer Intern Codie (Source Code)

Built the backend for a SaaS dashboard using Node.js, Prisma, and SQL Server. Implemented secure authentication flows and three-tier role-based access control.

Integrated Stripe payment processing and HubSpot CRM APIs, then deployed the backend service on Railway. Supported the creation of a scalable SaaS backend foundation with API integrations and database-driven access management.

Education

Learning history

Port Said University

Bachelor of Science, Technology and Information Systems

BSc in Technology and Information Systems. Graduated with Excellent with Honors.

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