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rohanthechamp/README.md

Rohan Malve 👋

Backend-Focused Full-Stack Developer
I build production-ready systems with Django REST, Flask, PostgreSQL, React, and Next.js.

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⚡ Mission Brief

[SYSTEM_STATUS]: Active 🟢 [FOCUS]: Scalable Backend Architectures [MISSION]: Ship software that survives production


🧠 What I Build

I do not build throwaway demos. I build applications like they are going to be used.

  • Clean APIs that make frontend work easier
  • Secure authentication and authorization flows
  • Database structures that can grow with the app
  • Production deployments that actually work outside localhost
  • Debugging when real-world issues appear

🚀 Featured Systems

01 — Flask E-Commerce Platform

A production-deployed e-commerce system built with Flask, PostgreSQL, Redis, and real backend workflows.

What makes it real:

  • Email + Google OAuth authentication
  • Cart, wishlist, checkout, and order management
  • Stripe payment flow
  • Admin dashboard
  • Deployed on Render
image


02 — Production-Style Hotel Internal Management Tool

A simulated internal hotel operations system built with Django REST Framework and React, designed for staff and admin workflows rather than customer-facing booking.

image

🏗️ System Architecture:

  • Frontend: React + React Query
  • API Layer: Django REST Framework
  • Database: PostgreSQL
  • Cache / Broker: Redis
  • Background Jobs: Celery
  • Deployment: Railway + Vercel

✨ Highlights & Production Wins:

  • JWT authentication and role-based access with invite flows and protected APIs.
  • Migrated from local SQLite thinking to production PostgreSQL behavior.
  • Configured Redis for caching and task brokering; deployed a separate Celery worker service for async workflows.
  • Solved CORS issues across Railway and Vercel.
  • Integrated async email delivery using Resend.
  • Debugged production logs and network issues instead of guessing.

📚 What I Learned:

  • How frontend and backend deployments interact in production.
  • Why environment variables matter more than localhost configs.
  • How async task queues work with Celery and Redis.
  • How production debugging depends on logs, retries, and service separation.
  • How to design internal tools instead of only customer-facing apps.

🔗 Live Frontend: https://hotel-management-fullstack-ten.vercel.app

🔗 Backend API: https://hotel-management-fullstack-production.up.railway.app


💰 Distributed Expense Processing Platform

Django • PostgreSQL • Redis • Celery • RabbitMQ • OCR • NLP

Production-oriented expense tracking system engineered around asynchronous processing, distributed workers, OCR pipelines, and scalable backend architecture.


⚙️ Core Engineering Features

⚡ Backend Infrastructure

  • Celery + RabbitMQ task orchestration
  • Redis-backed caching layer
  • PostgreSQL indexing optimizations
  • Docker Compose multi-service orchestration


🛠️ The Tech Arsenal

Backend Engine

Python Django Django REST Flask PostgreSQL Redis Celery SQL

Frontend Layer

React Next.js TypeScript JavaScript Redux React Query Axios React Router Context API

Interface Craft

HTML5 CSS3 TailwindCSS Bootstrap Chart.js

Delivery / Tooling / Deployment

Git GitHub Render Docker


🧩 Exploration & Tools

Sentry Gitlab Gitlab CI Heroku Notion Supabase Jest Selenium PowerShell Windows Terminal NPM Elasticsearch RabbitMQ


📚 Currently Learning

  • Advanced SQL and query optimization
  • System design from Designing Data-Intensive Applications
  • Backend architecture and scalability

💬 Ask Me About

  • Django REST Framework & Flask backend development
  • PostgreSQL and Redis integration
  • JWT authentication and API design
  • Production deployment and debugging

🌟 Operating Principles

Build clean. Ship real. Debug the hard parts. Improve until production feels boring.


🌐 Connect With Me



Back to Top ↑

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  1. flask-ecommerce-platform flask-ecommerce-platform Public

    Flask-based eCommerce platform with user auth, Stripe payments, admin panel, and order management.

    HTML

  2. hotel-management-fullstack hotel-management-fullstack Public

    Production-ready full-stack system with Django, React, JWT auth, Redis caching, Celery background jobs, deployed on Railway + Vercel

    JavaScript