You will get Seamless API Integration & Backend Development for Your App


Project details
Do you need a secure, scalable backend or API integration for your web or mobile app?
I help startups and businesses connect frontends, databases, and third-party services with clean, production-ready APIs.
I offer custom REST or GraphQL API development, backend setup with Node.js, and third-party integrations such as Stripe, Google APIs, Twilio, and more. This includes authentication & authorization, database setup, error handling, and logging for reliable, maintainable systems.
Whether you’re adding payments, user data sync, real-time features, or connecting an existing frontend to a backend, I deliver well-tested endpoints and clear API documentation (Postman/Swagger), so your team or future developers can work with ease.
Every project is built for scalability and performance, ensuring your backend grows with your product. You’ll get the full source code, deployment guidance, and one round of revisions to ensure everything works as expected.
Share your idea or API docs today, and let’s make your app powerful, fast, and production-ready.
I help startups and businesses connect frontends, databases, and third-party services with clean, production-ready APIs.
I offer custom REST or GraphQL API development, backend setup with Node.js, and third-party integrations such as Stripe, Google APIs, Twilio, and more. This includes authentication & authorization, database setup, error handling, and logging for reliable, maintainable systems.
Whether you’re adding payments, user data sync, real-time features, or connecting an existing frontend to a backend, I deliver well-tested endpoints and clear API documentation (Postman/Swagger), so your team or future developers can work with ease.
Every project is built for scalability and performance, ensuring your backend grows with your product. You’ll get the full source code, deployment guidance, and one round of revisions to ensure everything works as expected.
Share your idea or API docs today, and let’s make your app powerful, fast, and production-ready.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$280
|
Standard
$720
|
Advanced
$960
|
|---|---|---|---|
| Delivery Time | 2 days | 10 days | 16 days |
Number of Revisions | 2 | 9 | Unlimited |
Number of Pages | 1 | 1 | 1 |
Design Customization | |||
Content Upload | - | - | |
Responsive Design | - | - | - |
Source Code | - | - | - |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$35 - $250
Additional Revision
+$35
Content Upload
(+ 2 Days)
+$95
Source Code
(+ 2 Days)
+$350Frequently asked questions
About Joy Chandra
Full Stack Developer | End-to-End Web & App Solutions
Patuakhali, Bangladesh - 5:39 am local time
I'm Joy Chandra Uday, a passionate full-stack developer who builds fast, scalable, and user-loved digital products from the ground up. Whether it's a sleek e-commerce platform, a robust SaaS dashboard, or a custom web application that handles real traffic, I deliver clean code, seamless performance, and pixel-perfect results — on time and within budget.
With strong command over modern JavaScript ecosystems, relational & NoSQL databases, caching strategies, and deployment best practices, I've shipped projects that cut load times, boost conversions, and scale effortlessly.
Clients choose me for:
• Clear communication & daily updates
• Proactive problem-solving
• Focus on long-term maintainability
Ready to bring your vision to life?
Let's chat—drop me a message and turn your next big idea into reality!
Steps for completing your project
After purchasing the project, send requirements so Joy Chandra can start the project.
Delivery time starts when Joy Chandra receives requirements from you.
Joy Chandra works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements & API Planning
We start by reviewing your requirements, existing frontend, or third-party API docs. I define endpoints, data flow, authentication needs, and integrations to ensure everything is clear before development.
Backend Architecture & Database Design
I design the backend structure, database schema, and security approach to ensure performance, scalability, and clean data handling.


