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$
USD
I will node js backend developer for apis saas and ai integrations
Hussnain
5.0
5.0
Gig Summary
About this gig
Need a reliable Node.js developer who delivers clean, scalable backend code on time, every time?
WHAT I BUILD:
REST APIs (Node.js, Express, Fastify)
Backend architecture for SaaS platforms & dashboards
Database design (MongoDB, PostgreSQL, MySQL)
Third-party integrations: Stripe, Shopify, Twilio, Slack, OpenAI
AI-powered backend features & agent integrations
Authentication, authorization & role-based access
CI/CD setup & deployment
WHY WORK WITH ME:
- Former Technical Lead I write code the way senior teams expect it: clean, documented, tested
- Direct experience integrating payment gateways, AI APIs, and third-party services into production systems
- Clear communication you'll always know project status, no chasing for updates
- I under-promise on timelines and deliver ahead of schedule
Whether you need a simple API built from scratch, an existing backend fixed and optimized, or a full SaaS backend architected from the ground up, I'll scope it clearly before we start so there are no surprises.
Message me with your project details I usually reply within a few hours.
Get to know Hussnain
Hussnain
AI Powered Full Stack Developer React NextJS NodeJS AI Agents and SaaS
- FromPakistan
- Member sinceApr 2019
- Avg. response time1 hour
- Last delivery2 years
Languages
English
I'm Hussnain, Senior Full-Stack & AI Developer with 7+ years building web and mobile SaaS platforms, AI-integrated apps, and scalable APIs using React, Next.js, Node.js, TypeScript, and Flutter.
Led full-stack dev as Technical Lead for SaaS platforms (2020-2025) architecting AI features, gateway integrations, custom NPM packages (top 3% skill).
I build:
• AI agents & automation
• SaaS dashboards, mobile apps
• REST APIs
• MongoDB/PostgreSQL
• third-party API integrations (Stripe, Shopify, Twilio)
• CI/CD
• 135+ projects, 121 five-star reviews. Fast delivery, clean code, clear communication
My Portfolio
FAQ
Do you work with an existing codebase, or only new projects?
Both. Send me your repo/code and I'll review it before quoting, no charge for the initial review.
Can you integrate AI APIs like OpenAI or Claude into my backend?
Yes, this is part of my Premium package and a growing focus area for me.
What information do you need to start?
A brief description of what you're building, your preferred tech stack (if any), and access to any existing code/repo.
Do you offer ongoing maintenance after delivery?
Yes, available as a custom offer, message me to discuss.
Reviews
55 reviews for this Gig
| (55) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
Q 
qasimdsp1122
Pakistan
Amazing developer! Really goes the extra mile for us and ensures we are delighted with the work. We ran into a few unexpected roadblocks on this project, but they were solved without much trouble or discussion. I can't say enough positive things. Highly recommended!
$50
Price
E 
Seller's Response
Helpful?D deboerappdev
United States
Ongoing collaborationVery good experience. On this project, part of it was deciphering another developers work so we had to work closely to navigate the labyrinth of someone else's decisions. We were able to successfully retrieve and re-organize some important data that was stored and organized in a complex and unusual way....
$1,000-$2,500
Price
E Seller's Response
Helpful?D deboerappdev
United States
Ongoing collaborationVery good! This was a successful collaboration as it always is. In this project we had a few extra things that came up during development and the developer was able to take care of them as they came up. We did our QA testing on the new project and found no bugs at all! Good communication! Thorough testing!
$1,000-$2,500
Price
E Seller's Response
Helpful?D deboerappdev
United States
Ongoing collaborationThis was a really great experience. The developer took care of everything quickly and expertly. We even had one thing come up during development that did not occur to us originally. The developer took care of this for us too. A+ Communication and Collaboration skills, it makes it easy to discuss the work the specifics of the job. Perfect work!
$800-$1,000
Price
E Seller's Response
Helpful?D deboerappdev
United States
Ongoing collaborationGreat full-stack developer. Fast, efficient and clean coding. Very good about answering questions and finding the most effective way to get the job done. Great communication skills!
$1,000-$2,500
Price
E Seller's Response
Helpful?
Reviews
55 reviews for this Gig
| (55) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
Q qasimdsp1122
Pakistan
Amazing developer! Really goes the extra mile for us and ensures we are delighted with the work. We ran into a few unexpected roadblocks on this project, but they were solved without much trouble or discussion. I can't say enough positive things. Highly recommended!
$50
Price
E Seller's Response
Helpful?D deboerappdev
United States
Ongoing collaborationVery good experience. On this project, part of it was deciphering another developers work so we had to work closely to navigate the labyrinth of someone else's decisions. We were able to successfully retrieve and re-organize some important data that was stored and organized in a complex and unusual way....
$1,000-$2,500
Price
E Seller's Response
Helpful?D deboerappdev
United States
Ongoing collaborationVery good! This was a successful collaboration as it always is. In this project we had a few extra things that came up during development and the developer was able to take care of them as they came up. We did our QA testing on the new project and found no bugs at all! Good communication! Thorough testing!
$1,000-$2,500
Price
E Seller's Response
Helpful?D deboerappdev
United States
Ongoing collaborationThis was a really great experience. The developer took care of everything quickly and expertly. We even had one thing come up during development that did not occur to us originally. The developer took care of this for us too. A+ Communication and Collaboration skills, it makes it easy to discuss the work the specifics of the job. Perfect work!
$800-$1,000
Price
E Seller's Response
Helpful?D deboerappdev
United States
Ongoing collaborationGreat full-stack developer. Fast, efficient and clean coding. Very good about answering questions and finding the most effective way to get the job done. Great communication skills!
$1,000-$2,500
Price
E Seller's Response
Helpful?
