I will be your expert backend developer in express js, node js,django rest, and laravel

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don_harrington
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don_harrington
John H

About this gig

Looking for a reliable backend developer who can design, build, or fix your web application?

I specialize in developing secure, fast, and scalable backend systems using Node.js (Express, NestJS), Python (Django, Django REST, FastAPI), and PHP (Laravel, Lumen) customized to meet your business needs.

My expertise includes:

  • RESTful & GraphQL API development
  • Authentication (JWT, OAuth, Passport, Sanctum)
  • Database design (MySQL, PostgreSQL, MongoDB)
  • Integration with third-party APIs and microservices
  • Performance optimization & error debugging
  • Deployment on AWS, Heroku, or DigitalOcean

Tech Stack:

Node.js, Express.js, NestJS, Django, Django REST Framework, FastAPI, Laravel, MySQL, PostgreSQL, MongoDB, Docker, and Redis.

Why clients trust me:

  • 7+ years of proven full-stack and backend experience
  • Clean, maintainable, and scalable code
  • Clear communication and on-time delivery
  • 100% project confidentiality and post-delivery support

Whether you need a new backend, API integration, or bug fixes, I'll deliver production-ready code with detailed documentation.

Lets make your application run faster, safer, and smarter!

Get to know John H

John H
  • FromUnited States
  • Member sinceOct 2025
  • Avg. response time3 hours
  • Languages

    English
I am a skilled Software Engineer with strong expertise in software development using Nodejs and Python. For the past 6 years, I’ve specialized in building powerful and efficient backend systems with Nodejs. I also bring over 6 years of experience in transforming XML, JSON, and Excel data using XSLT, XPath, and XQuery. Whether you need a backend developer or an expert in complex XML workflows, I’m confident in delivering high-quality, reliable solutions. Feel free to reach out to discuss your project needs.

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