You will get integrate APIs and build secure Node.js backend services

Project details
Need a reliable backend developer to build secure, scalable APIs for your web or mobile application?
I'm a Full-Stack Developer specializing in Node.js, Express.js, TypeScript, PostgreSQL, MongoDB, and GraphQL. Whether you're building a new product from scratch or extending an existing system, I develop backend services engineered for performance, security, and long-term maintainability.
Services include:
• REST & GraphQL API development
• Authentication with JWT & OAuth
• Database design and management (PostgreSQL, MongoDB)
• Third-party integrations (Stripe, Twilio, SendGrid, and more)
• Role-based access control & data validation
• API documentation
• Bug fixing, refactoring & performance optimization for existing backends
Every API I build follows clean architecture principles, is fully documented, and is designed to scale making it easy for your frontend team to integrate quickly and for your product to grow without costly rework.
Let's turn your idea into a robust, production-ready backend.
I'm a Full-Stack Developer specializing in Node.js, Express.js, TypeScript, PostgreSQL, MongoDB, and GraphQL. Whether you're building a new product from scratch or extending an existing system, I develop backend services engineered for performance, security, and long-term maintainability.
Services include:
• REST & GraphQL API development
• Authentication with JWT & OAuth
• Database design and management (PostgreSQL, MongoDB)
• Third-party integrations (Stripe, Twilio, SendGrid, and more)
• Role-based access control & data validation
• API documentation
• Bug fixing, refactoring & performance optimization for existing backends
Every API I build follows clean architecture principles, is fully documented, and is designed to scale making it easy for your frontend team to integrate quickly and for your product to grow without costly rework.
Let's turn your idea into a robust, production-ready backend.
Web Programming Project
API Development, API Integration, Data DashboardProgramming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$99
|
Standard
$299
|
Advanced
$995
|
|---|---|---|---|
| Delivery Time | 3 days | 7 days | 14 days |
Number of Revisions | 1 | 2 | 3 |
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$50 - $400
Additional Revision
+$50
Additional API Integration
(+ 2 Days)
+$50
Additional API Endpoints
(+ 3 Days)
+$55
Authentication System
(+ 4 Days)
+$77Frequently asked questions
About Mehran
Senior Full-Stack Engineer | API Integration | SaaS & AI Automation
Islamabad, Pakistan - 9:25 pm local time
I build AI-powered applications, API-driven systems, SaaS products, and business automation solutions that turn complex workflows into reliable, scalable software.
With 8+ years of full-stack engineering experience, I specialize in Node.js, Next.js, React, TypeScript, REST/GraphQL APIs, MongoDB, PostgreSQL, Redis, AWS, and third-party integrations. I also have experience across Laravel, CodeIgniter, AngularJS, Vue.js, and Progressive Web Applications.
What I can help you build
- AI & Automation: AI-powered workflows, chatbots, assistants, content-processing systems, and business automation
- API Development & Integration: REST/GraphQL APIs, third-party services, authentication, data synchronization, and backend integrations
- SaaS & MVP Development: Scalable web applications from architecture and database design through development and deployment
- Full-Stack Applications: Next.js, React, TypeScript, Node.js, MongoDB, PostgreSQL, and Redis
- Business Workflow Automation: Connecting forms, APIs, databases, CRMs, email systems, and other business tools
- Backend & System Architecture: Reliable APIs, database architecture, real-time systems, integrations, and maintainable codebases
Relevant experience
I've worked on production software across logistics, legal technology, booking, marketplaces, and SaaS.
One example is an Australian fleet-management SaaS platform where I led development of real-time job tracking, geofencing, proof-of-delivery automation, drag-and-drop job planning, and MYOB/Xero integrations for a platform serving 600+ trucks.
I've also architected and delivered enterprise web applications, scalable REST APIs, database systems, real-time applications, and multi-vendor platforms.
My approach
That experience is why I work directly with clients now, with no account managers or handoffs in between you get a senior engineer end to end, from architecture decisions to shipped code. I focus on clean architecture, reliable integrations, maintainable code, and practical solutions that support real business goals, not simply writing code to satisfy a specification.
If you're building an AI-powered product, automating a complex workflow, integrating multiple APIs, or developing a SaaS/MVP, I can help you design and build the right solution from the ground up.
Core Technologies:
Node.js • Next.js • React • TypeScript • REST • GraphQL • MongoDB • PostgreSQL • Redis • AWS • Docker • Laravel • CodeIgniter
Steps for completing your project
After purchasing the project, send requirements so Mehran can start the project.
Delivery time starts when Mehran receives requirements from you.
Mehran works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements review & technical scoping
I review your requirements, existing codebase (if any), and clarify database, authentication, and integration needs before starting.
Database schema design
I design or review the database structure (PostgreSQL/MongoDB) to support your application's data needs efficiently.

