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Yousef Hamaki

Open to Senior Backend roles

Yousef Hamaki

Senior Backend Engineer

I design and scale Node.js backends, APIs and multi-tenant SaaS platforms on AWS — from database performance to production reliability.

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monthly transactions
500K+
daily API requests
1M+
faster DB queries
60%
Portrait of Yousef Hamaki

Selected work

Systems I've built

My own product first, then client work. Each case study covers the context, my role, the backend problems and what I built.

Experience

Where I've worked

  1. Lead Backend Developer · Anspire Agency

    May 2023 – Present

    New Cairo, Egypt

    • Architected and deployed SaaS backends handling 500K+ monthly transactions with 99.99% uptime.
    • Built REST and GraphQL APIs that improved data-retrieval speed by 40%.
    • Optimized PostgreSQL and MongoDB queries and indexes for up to 60% faster database responses.
    • Lead a team of 4 backend developers — coding standards, code reviews and mentoring.
    • Optimized AWS infrastructure, lowering hosting costs by 20%.
    • Set up GitHub Actions CI/CD, taking deployments from hours to minutes.

  2. Full-Stack Developer (backend-focused) · Freenet

    Oct 2022 – Apr 2023

    Remote, Germany

    • Rebuilt critical Node.js modules, improving performance and reducing downtime by 30%.
    • Migrated to microservices, enabling independent deployments and horizontal scaling.
    • Built secure APIs handling 1M+ daily requests, with authentication and rate limiting.
    • Ran load testing and tuning that increased throughput by 25%.

  3. Full-Stack Developer (backend-focused) · Consulta

    Jan 2021 – May 2022

    Egypt

    • Built the backend of a client-management platform with Node.js, Express.js and PostgreSQL.
    • Implemented real-time messaging over WebSockets, increasing engagement by 35%.
    • Implemented JWT authentication and role-based access control (RBAC).
    • Made queries 50% faster through schema normalization and caching.
    • Dockerized services and automated deployments to AWS.

Skills

What I work with

Languages

  • JavaScript (ES6+)
  • TypeScript
  • SQL

Backend

  • Node.js
  • Express.js
  • REST
  • GraphQL
  • WebSockets / Socket.io
  • JWT & RBAC
  • Rate limiting

Databases

  • PostgreSQL
  • MongoDB
  • Query optimization
  • Indexing
  • Schema design
  • Caching

Architecture

  • Microservices
  • Multi-tenant SaaS
  • Design patterns
  • OOP

Cloud & DevOps

  • AWS (EC2, S3, CloudFront)
  • GCP
  • Docker
  • GitHub Actions
  • CI/CD
  • Load testing

Also comfortable with React and Next.js on the frontend.

About

About me

I'm a backend engineer who builds systems that stay fast and reliable as they grow.

For 5+ years I've designed and scaled production backends in Node.js — APIs, PostgreSQL and MongoDB data layers, and AWS infrastructure. Today I lead a backend team at Anspire Agency.

My degree is in accounting, which turns out to be an advantage when designing billing and transactional systems.

Education

B.Com in Accounting

Tanta University · 2019 – 2023

Certifications

Available for backend & SaaS projects

APIs, database performance and multi-tenant SaaS architecture.

Get in touch

Contact

Let's talk

Email is the fastest way to reach me — for roles, projects or a technical conversation.

yousefhamaki2@gmail.com
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Based in Cairo, Egypt.