Web Developer | React.js | Node.js | SQL

Sandhya Kethineni

Starting at

/hr

About this service

Summary

Hi! I’m Sandhya, a full-stack web developer specializing in building scalable, performant web applications using React, Node.js, and SQL databases.

What I offer:

Modern, responsive frontend development using React.js

Robust backend APIs and server logic with Node.js (Express, Nest.js, etc.)

Database design, management, and optimization using SQL (MySQL, PostgreSQL, MSSQL)

Integration of frontend and backend for seamless user experience

RESTful API development and integration

Debugging, testing, and deployment assistance

Performance optimization and best coding practices

Why choose me?

[8]+ years of experience in full-stack development

Clean, maintainable, and scalable code

Strong problem-solving skills and attention to detail

Effective communication and timely delivery

Client-focused approach to meet your unique needs

Typical projects I handle:

Single-page applications (SPAs) with React

REST API backend services with Node.js

Database-driven apps with SQL data storage

Dashboards, admin panels, and user portals

Integration with third-party APIs and services

Let’s build your next web app!

Feel free to message me for a free consultation or project estimate.

What's included

Frontend Development (React.js)
Responsive user interface built with React.js, compatible with major browsers and devices Reusable React components with clean, modular code State management using React Context, Redux, or other libraries as needed Routing and navigation implemented with React Router or similar Form handling with validation and error feedback Integration of UI with backend APIs Loading indicators, error handling, and user-friendly interactions Basic accessibility compliance (WCAG standards) Optimized performance and lazy loading where applicable
Backend Development (Node.js)
RESTful API development using Express.js or Nest.js Secure user authentication and authorization (JWT, OAuth, or session-based) CRUD operations for your business data Data validation and error handling Middleware implementation for logging, security, and request processing Integration with third-party APIs or services if needed Environment-based configuration (development, staging, production) API documentation (Swagger or similar)
Database (SQL)
Database schema design according to your project needs Efficient SQL queries and stored procedures for CRUD operations Data normalization and indexing for performance optimization Implementation of relationships (one-to-one, one-to-many, many-to-many) Backup and recovery recommendations Basic database security measures (user roles, permissions)
Testing and Quality Assurance
Unit testing for critical frontend and backend components Basic end-to-end testing (optional) Debugging and bug fixes before delivery Code review and best practice adherence

Example projects