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You will get Backend Integration via API | API Integration Expert | Workflows Expert

Harsh N.Status: Offline
Harsh N. Harsh N.
4.8
Top Rated
Preview image

Let a pro handle the details

Buy Custom Website Programming services from Harsh, priced and ready to go.
Harsh N.Status: Offline
Harsh N. Harsh N.
4.8
Top Rated
Preview image

Let a pro handle the details

Buy Custom Website Programming services from Harsh, priced and ready to go.

Project details

❓ Need a Backend Integration & API Expert to streamline your workflows?

I’m an API Integration Specialist skilled in Backend Integration, Custom API Integration, REST API, SOAP API, Webhooks, and Workflow Automation. I’ll connect your systems, automate processes, sync data seamlessly, and build secure, scalable API solutions that boost efficiency and reduce manual tasks.

✨ What I deliver with your Backend API setup:
• Backend API Integration & configuration
• REST API & SOAP API setup
• Webhooks & real-time data sync
• CRM, ERP, SaaS & Payment Gateway integration
• Automation workflows & process optimization
• Secure authentication (OAuth, API keys, tokens)

I’ll create a clean, automated, performance-focused backend system tailored to your business.

👉 Ready to optimize your backend with expert API Integration & Workflow Automation?

# API Integration # Backend Integration # Automation # REST API # SOAP API # Webhooks # Workflow Automation # CRM Integration # ERP Integration # SaaS Integration # Payment Gateway # Secure API # Digital Transformation # Tech Solutions # Business Automation # Process Optimization
Programming Languages
PHP, JavaScript, Python
Coding Expertise
Cross Browser & Device Compatibility, Security, Design
What's included
Service Tiers Starter
$99
Standard
$499
Advanced
$999
Delivery Time 2 days 5 days 9 days
Number of Revisions
122
Number of Pages
11020
Design Customization
Content Upload
Responsive Design
Source Code
4.8
11 reviews
91% Complete
(10)
1% Complete
(0)
9% Complete
(1)
1% Complete
(0)
1% Complete
(0)

JQ

Joe Q.
5.00
Feb 12, 2026
React and node work

TK

Tim K.
3.15
Jul 11, 2023
Front End Developer

TB

Travis B.
5.00
Apr 18, 2022
Seeking a Flutter Engineer to create Android App Widget for Home Screen

AS

Alfredo S.
5.00
Mar 1, 2022
IOS AND Android App DEveloper great work. everytime again.

JP

John P.
5.00
Oct 22, 2021
Hybrid App Development Harsh was incredibly good to work with. Very knowledgeable, on time, and just excellent work. We will definitely continue to use him in the future
Harsh N.Status: Offline

About Harsh

Harsh N.Status: Offline
MERN Stack | Flutter Developer | Node.js | React Developer
100% Job Success
4.8  (11 reviews)
Kharar, India - 12:36 pm local time
👋 Hi, I’m Harsh!

I’m a MERN Stack Developer and Flutter Developer with strong experience building scalable web applications and high-performance mobile apps using React.js and Flutter.

I help startups, entrepreneurs, and growing businesses turn ideas into clean, functional, and user-friendly web and mobile solutions—from frontend UI to backend logic and APIs.

With hands-on experience across web and cross-platform mobile development, I focus on performance, scalability, and great user experience.

⚙️ MERN Stack Development (Web Apps)
‣ As a MERN Developer, I help businesses build robust full-stack applications using:
‣ React.js for modern, responsive frontend interfaces
‣ Node.js & Express.js for secure and scalable backend development
‣ RESTful APIs and third-party integrations
‣ MongoDB for efficient database design and management
‣ Full-stack CRUD applications and dashboards

📱 Flutter App Development (Mobile Apps)
‣ As a Flutter Developer, I deliver:
‣ Cross-platform mobile apps (Android & iOS) from a single codebase
‣ Clean UI/UX using Flutter widgets
‣ API integration with Node.js backends
‣ App performance optimization and bug fixing
‣ Firebase integration (Auth, Firestore, Notifications)

🔁 Backend & Integrations
‣ I help connect apps with essential services:
‣ REST API development and integration
‣ Authentication & authorization systems
‣ Third-party APIs and services
‣ Backend support for Flutter & React apps

✨ Why Work With Me?
‣ MERN Stack & Flutter expertise under one roof
‣ Web + Mobile app development experience
‣ Clean, maintainable, and scalable code
‣ Strong problem-solving and attention to detail
‣ Clear communication and on-time delivery

✨ My goal is simple:
To help you build reliable web and mobile applications that are fast, scalable, and ready to grow with your business.

👉 If you’re looking for a MERN Developer or Flutter Developer to bring your idea to life, let’s connect and get started!


Skills:

# MERN Developer # Flutter Developer # Full Stack Developer # Web And Mobile Developer # Java Script Developer # MERN Stack # React JS Developer # Node JS Developer # Express JS # Mongo DB Developer # Web App Development # Frontend Developer # Backend Developer # Flutter App Developer # Mobile App Development # Cross Platform App Development # Android App Developer # iOS App Developer # REST API # API Integration # Firebase Developer # SaaS Developer # Startup Developer # Custom Software Development # Scalable Applications # Upwork Developer # Remote Developer # # MERN Developer # Flutter Developer # Full Stack Developer # Web And Mobile Developer # Java Script Developer # MERN Stack # React JS Developer # Node JS Developer # Express JS # Mongo DB Developer # Web App Development # Frontend Developer # Backend Developer # Flutter App Developer # Flutter Apps # Mobile App Development # Cross Platform App Development # Android App Developer # iOS App Developer # REST API # API Integration # SaaS Developer # Custom Software Development

Steps for completing your project

After purchasing the project, send requirements so Harsh can start the project.

Delivery time starts when Harsh receives requirements from you.

Harsh works on your project following the steps below.

Revisions may occur after the delivery date.

Project Analysis & Requirements

I’ll review your systems, API docs, endpoints, and workflow goals to define the integration outcome.

API Development & Integration Setup

I’ll develop and configure secure API connections, authentication methods, and data mapping between systems.

Review the work, release payment, and leave feedback to Harsh.