Website Code Audit & Payment Integration

We’ve built a website and are looking to hire a freelance developer to review the codebase and database setup. The goal is to ensure everything is clean, secure, optimized, scalable, and ready for production. We also need help integrating UPI and Razorpay payments.

What we need you to check & do:

Code quality (clean, modular, maintainable)

Database design & queries (normalization, indexing, performance)

Security vulnerabilities (SQL injection, XSS, authentication, etc.)

Performance & scalability improvements

Suggestions for best practices and optimization

Integration of UPI and Razorpay payment gateway

Deliverables:

A detailed review report highlighting issues and recommendations

Actionable steps for improvements

UPI and Razorpay integration

Fixing additional issues (can be a separate engagement if needed)

Tech Stack:

Backend: Django 5.x, Django REST Framework, Celery, WebSockets

Database: SQLite (dev), PostgreSQL (prod)

Frontend: React 19.x, Tailwind CSS, Axios

Authentication: JWT-based

Hosting/Version Control: Git/GitHub + cloud hosting

Who we’re looking for:

Strong background in full-stack web development

Experience with Django + React projects

Knowledge of database optimization and security best practices

Prior experience integrating payment gateways (preferably Razorpay & UPI)

Professional experience preferred

This is a freelance job — remote candidates are welcome.