Looking for a job

Z Khaled

@zkhaled

Egypt

Message

What I'm looking for

I’m looking for a full-time backend role where I can build production-ready, scalable systems and multi-tenant SaaS platforms.

Backend Engineer (Node.js / TypeScript) with hands-on experience designing and scaling production-ready APIs, SaaS platforms, and distributed system architectures.
My core expertise spans:
• Multi-Tenant SaaS Systems: Engineered data isolation logic and updated core authentication flows to transform single-tenant applications into scalable multi-tenant platforms (InstaMenu).
• Financial & Web3 Integrations: Integrated complex fiat and crypto payment gateways (Stripe, MoonPay, PayPal, Braintree, NowPayments) alongside secure Web3 smart contract triggers on BSC Scan (NextIn).
• Security & Role-Based Access: Implemented JWT authentication, strict RBAC pipelines, and scheduled/real-time notification flows (Firebase, Nodemailer, Cron jobs).
• API Architecture & Deployment: Built and deployed REST & GraphQL APIs backed by VPS setups, Nginx, and cloud stores (MinIO/Cloudinary).
Core Tech Stack: Node.js | Express.js | TypeScript | MongoDB | PostgreSQL | Prisma | GraphQL | REST APIs | Docker Basics

Experience

Work history, roles, and key accomplishments

Data Operations Assistant

Egyptian Armed Forces

Jul 2025 - Sep 2026 (1 year 2 months)

Maintained internal relational databases and automated analytical reporting pipelines, improving daily operational workflow efficiency.

Database Management Automation Reporting

Backend Engineer (Contract)

NextIn

Aug 2024 - Jun 2025 (10 months)

Architected backend from scratch with JWT/RBAC; collaborated with Flutter developers to define strict OpenAPI contracts for seamless Web3 integration. Integrated 4+ payment gateways with secure webhook validation and BSC Scan smart contract connections.

NodeJS TypeScript JWT RBAC OpenAPI Web3 Payment Gateways MoonPay NowPayments PayPal Braintree Webhooks BSCscan Nodemailer Cron Firebase

Backend Developer (Contract)

InstaMenu

Jan 2025 - Apr 2025 (3 months)

Architected a scalable multi-tenant SaaS backend, implementing strict database-level tenant isolation and RBAC to support secure, subscription-based user onboarding and data privacy.

Multi tenant architecture Database Design RBAC SaaS Security

Full Stack Developer (Contract)

WallVibe

Apr 2024 - Jun 2024 (2 months)

Built backend services for a media-rich application, utilizing MinIO object storage for asset management and optimizing database schemas for high-performance bulk metadata retrieval. Deployed backend on a Linux VPS and automated content ingestion pipelines via Make.com.

NodeJS Minio Database Optimization Linux Nginx Make.Com Deployment