You will get Full Stack Integration Expert Stripe, OpenAI, OAuth API, Payment Gateway
Project details
I build secure and scalable API integrations and AI automation systems that connect your business tools, reduce manual work and improve workflow efficiency. My focus is on creating reliable integrations that enhance productivity and support business growth.
▶ What I deliver:
✔ Stripe and Chargebee payment gateway integrations
✔ OpenAI and Azure AI Search powered automation solutions
✔ Microsoft Entra ID OAuth and secure authentication systems
✔ Third party API integration for CRM, SaaS and business tools
✔ Workflow automation across platforms like Slack, Shopify and HubSpot
✔ Data synchronization and backend integration architecture
I use modern tools and methods including REST APIs, webhooks, OAuth flows, Postman, Docker, Azure services, AWS, GitHub and AI assisted development using ChatGPT and Copilot for faster and accurate delivery.
API Integration Specialist Stripe OpenAI Azure Entra ID Expert API Developer Integration Engineer Backend Integration Specialist SaaS API Developer Automation Engineer AI Integration Developer Payment Gateway Integration OAuth Developer
▶ What I deliver:
✔ Stripe and Chargebee payment gateway integrations
✔ OpenAI and Azure AI Search powered automation solutions
✔ Microsoft Entra ID OAuth and secure authentication systems
✔ Third party API integration for CRM, SaaS and business tools
✔ Workflow automation across platforms like Slack, Shopify and HubSpot
✔ Data synchronization and backend integration architecture
I use modern tools and methods including REST APIs, webhooks, OAuth flows, Postman, Docker, Azure services, AWS, GitHub and AI assisted development using ChatGPT and Copilot for faster and accurate delivery.
API Integration Specialist Stripe OpenAI Azure Entra ID Expert API Developer Integration Engineer Backend Integration Specialist SaaS API Developer Automation Engineer AI Integration Developer Payment Gateway Integration OAuth Developer
What's included
| Service Tiers |
Starter
$100
|
Standard
$299
|
Advanced
$499
|
|---|---|---|---|
| Delivery Time | 5 days | 8 days | 14 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 1 | 3 | 5 |
Design Customization | |||
Content Upload | - | ||
Responsive Design | |||
Source Code |
Frequently asked questions
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HB
Harry B.
Jul 7, 2026
Need help to deploy Node.js/Express Web Application
Great work! Very professional and delivered exactly as expected. Highly recommended.
TM
Tracy M.
Jul 4, 2026
Backend Developer Needed for Node.js Code Review & API Optimization
Excellent Node.js developer. Kamran quickly understood our existing codebase, implemented new apis, resolved complex bugs and improved overall application performance. His debugging and problem-solving skills are outstanding. Highly recommended!
AP
Anil P.
Mar 24, 2021
Node js, and angular developer need for basic admin panel and Rest APis
Very nice developer, do hire him for the jobs.
About Kamran
Backend Node.js Developer | SaaS, React, Multi-Tenant APIs & AWS
Lahore, Pakistan - 12:16 pm local time
With over 4+ years of hands on experience, I have worked on SaaS platforms, insurance systems and real estate applications where performance, reliability and maintainability are critical. My focus is not just writing code but building production ready systems that deliver real business value.
☑ What I can help you with:
• Full Stack Development using React, Next.js and Node.js
• Scalable SaaS and multi tenant application architecture
• Clean and efficient REST API development
• Secure authentication systems including JWT, session based auth and SSO
• AI powered features using OpenAI, Azure AI Search and modern LLM integrations
• Payment gateway integration with Stripe and Chargebee
• Performance optimization and backend bottleneck resolution
• Cloud deployment on AWS with CI CD pipelines
• Pixel perfect UI development from Figma or Webflow designs
☑ Tech Stack and Tools:
🗸 Frontend technologies include React.js, Next.js, TypeScript, Tailwind CSS and Material UI.
🗸 Backend expertise includes Node.js, Express.js, microservices architecture and API design.
🗸 Databases include MongoDB, PostgreSQL and MySQL.
🗸 Cloud and DevOps tools include AWS EC2, Amplify, Docker, GitHub Actions, PM2, Vercel and Netlify.
I also work with modern AI development workflows such as retrieval augmented generation, semantic search, vector databases, prompt engineering and AI driven automation to build smarter applications.
Recent work includes building a multi tenant asset tracking platform, developing insurance systems with complex pricing and payments, creating real estate platforms with scalable APIs and integrating AI powered search systems.
My approach is simple clear communication, clean maintainable code and a strong focus on delivering results that actually matter. I aim to build long term partnerships and support products beyond initial development.
→ If you are looking for a Full Stack Developer with strong expertise in Node.js, React, Next.js, SaaS and APIs who can take ownership and deliver scalable systems, feel free to reach out.
Full Stack Developer Node.js React Next.js SaaS Developer API Developer JavaScript TypeScript MERN Stack Web Application Development Backend Developer Frontend Developer Cloud Developer AWS Developer AI Integration OpenAI Developer Stripe Integration Scalable Systems Microservices Architecture SaaS Platform Development
Steps for completing your project
After purchasing the project, send requirements so Kamran can start the project.
Delivery time starts when Kamran receives requirements from you.
Kamran works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Analysis & Integration Planning
Understand your business workflows, identify required APIs, define data flow, authentication method and integration architecture.
Development & API Integration
Build secure API connections, implement Stripe, OpenAI, Azure, Entra ID or third party services with proper error handling and automation logic.