I'm a passionate Full Stack Developer from India focused on building modern, scalable and user-friendly web and mobile applications.
I have hands-on experience working with React, React Native, TypeScript, JavaScript, PHP, MySQL, REST APIs and payment gateway integrations.
Alongside software development, I also work on freelance projects through BuildNexDev, helping businesses and individuals build websites, web applications and digital solutions.
const nandhakumar = {
role: "Full Stack Developer",
location: "India 🇮🇳",
frontend: [
"React",
"React Native",
"TypeScript",
"JavaScript",
"HTML",
"CSS"
],
backend: [
"PHP",
"Node.js",
"Express.js",
"REST APIs"
],
database: [
"MySQL"
],
payments: [
"Razorpay",
"CCAvenue",
"HDFC QR",
"ICICI"
],
cloud: [
"AWS EC2",
"AWS S3"
],
tools: [
"Git",
"GitHub",
"Docker",
"Nginx",
"PM2",
"Postman"
],
currentlyLearning: [
"Node.js",
"Express.js",
"MongoDB",
"Docker",
"CI/CD",
"AWS",
"System Design"
]
};My portfolio showcases my development experience, projects, technical skills and the applications I've worked on.
🌐 nandhakumarsvdev.netlify.app
BuildNexDev is my freelance development initiative where I work on custom software solutions for businesses and individuals.
| Service | Description |
|---|---|
| 🌐 Business Websites | Modern responsive websites |
| 💻 Web Applications | Custom business applications |
| 📱 Mobile Applications | Android / iOS applications |
| 🛠️ Admin Panels | Custom dashboards & management systems |
| 🔌 REST APIs | Backend API development & integration |
| 💳 Payment Gateway | Razorpay, CCAvenue & QR integrations |
| ☁️ Deployment | AWS, VPS, Nginx & server deployment |
| 🔧 Maintenance | Bug fixes & application maintenance |
React · React Native · TypeScript · JavaScript · HTML5 · CSS3 · Vite
PHP · Node.js · Express.js · REST API · JWT Authentication
MySQL · MongoDB · SQL · Database Design
AWS EC2 · AWS S3 · Docker · Nginx · Linux · PM2 · Git · GitHub · CI/CD
I have experience integrating payment systems into web applications.
💳 Razorpay
💳 CCAvenue
💳 HDFC QR Payment
💳 ICICI Payment Integration
💳 Payment Verification
💳 Transaction Handling
💳 Payment Status Management
A restaurant management and digital ordering platform.
- 📱 QR Menu
- 🍽️ Table Management
- 👨🍳 Kitchen Order Management
- 🧾 Billing
- 📦 Inventory Management
- 👥 Staff Management
- 📊 Sales Reports
- 💳 Payment Integration
- 🔐 Role-Based Access
- 🏢 Branch Management
Tech: React TypeScript PHP MySQL REST API
A web application designed to manage customers, loans, agents, collections and financial operations.
- Customer Management
- Loan Management
- Agent Management
- Collection Management
- Payment Tracking
- Reports
- Admin Dashboard
- Role-Based Access
Tech: React PHP MySQL REST API
A modern administration platform for managing users, branches, roles and business data.
Tech: React TypeScript Vite PHP MySQL
I also build mobile applications using React Native.
⚛️ React Native
📱 Android Applications
🍎 iOS Development
🔄 Redux
🔄 Redux-Saga
📝 Formik
🔌 REST API Integration
🔐 JWT Authentication
💳 Payment Integration
Frontend Development ████████████████████
React Development ████████████████████
React Native ██████████████████
TypeScript ██████████████████
PHP Backend ██████████████████
REST API Development ██████████████████
MySQL █████████████████
Payment Integration ███████████████
AWS ████████████
Node.js ███████████
Docker █████████
CI/CD █████████
🚀 Node.js
🚀 Express.js
🚀 MongoDB
🐳 Docker
⚙️ CI/CD
☁️ AWS
🏗️ System Design
🔧 Microservices
