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preetham2203/README.md

Hi, I'm Preetham Reddy πŸ‘‹

Full Stack Developer Β· React.js Β· TypeScript Β· Python Β· Django REST Framework

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About Me

Full Stack Developer with 1+ Years of production experience building React.js + TypeScript frontends and Django REST APIs. Delivered InstaCare β€” a 3-portal Healthcare Management Platform (Patient, Admin, Doctor) with 25+ screens, Razorpay payment integration, Leaflet maps, and real-time slot booking. Also built EventHub, a full-stack event management system from database design to live deployment.

  • πŸ₯ Built InstaCare β€” 25+ screens, 40+ REST API endpoints, Razorpay + Leaflet.js
  • ⚑ Reduced bundle size by ~28% and list render time from ~800ms to ~120ms
  • πŸ” Implemented JWT auth + RBAC across 3 user roles with 100% route protection
  • 🌍 Open to frontend, backend, and full-stack roles globally β€” remote & on-site

Tech Stack

Frontend

React TypeScript JavaScript HTML5 CSS3 Bootstrap

Backend

Python Django DRF

Database & Cloud

MySQL PostgreSQL AWS

Integrations & Tools

Leaflet Razorpay Git Postman Vite

Data & Analytics

Power BI Tableau Pandas


Featured Projects

πŸ₯ InstaCare β€” Healthcare Management Platform (Production)

React.js Β· TypeScript Β· Leaflet.js Β· Razorpay SDK Β· CSS Animations

Built the entire frontend for a 3-portal healthcare platform serving patients, admins, and doctors.

  • 25+ screens across Patient Portal, Admin Dashboard, and Doctor Portal
  • 5-step booking flow: Specialisation β†’ Doctor β†’ Branch (Leaflet map with live GPS) β†’ Slot calendar β†’ Razorpay payment
  • Slot calendar with colour-coded availability + real-time past-time filtering
  • Razorpay 2-phase payment β€” 0 payment-slot desyncs in production
  • Lazy loading + React.memo: render time ~800ms β†’ ~120ms on 50+ cards
  • Complete API error handling (400/401/403/404/409/500) with skeleton loaders + retry logic
  • Prescription module with S3 URL validation and appointment-grouped PDF viewer

Private repository β€” available on request. Happy to walk through the code in an interview.


πŸŽ‰ EventHub β€” Full Stack Event Management System

Django Β· Django REST Framework Β· MySQL Β· Bootstrap Β· PythonAnywhere Β· AWS

Full-stack event platform built and deployed independently β€” database to UI.

  • REST APIs for event CRUD, user registration, image uploads, and capacity tracking
  • Concurrent-safe registration with select_for_update β€” 0 double-bookings in load testing
  • Deployed on PythonAnywhere with WSGI + AWS-hosted MySQL β€” 99.5% uptime over 3 months
  • Responsive Bootstrap UI compatible across desktop, tablet, and mobile

View Repo


πŸŽ“ College Admin Dashboard β€” React Migration

React.js Β· TypeScript Β· Context API Β· Axios Β· REST APIs

Migrated a legacy Bootstrap admin portal to a React.js SPA.

  • 55% faster page loads after migration
  • Debounced search (300ms) reduced API calls by ~80% on 10,000+ row tables
  • JWT auth + protected routes + role-based navigation β€” 0 unauthorised access in 6-month run

πŸ§‘β€πŸŽ“ Student Management REST API

Django REST Framework Β· MySQL Β· AWS Β· Postman

CRUD REST APIs for student records on AWS-hosted MySQL. All endpoints follow REST standards and tested with Postman.

View Repo


πŸ“Š E-commerce Return Rate Analysis

Python Β· Power BI Β· SQL Β· Pandas

Processed 70,000+ records to identify return patterns. Delivered 5 dashboards adopted by the operations team for weekly reviews.

View Repo


πŸ“‰ Superstore Sales Dashboard

Tableau

Sales and profit insights dashboard β€” interactive filters, trend analysis, regional breakdowns.

View Dashboard


GitHub Stats

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"Ship it. Own it. Improve it."

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  1. eventhub-django eventhub-django Public

    Complete Django Event Management System with User Authentication

    HTML 2

  2. student-management-api student-management-api Public

    Django Student Management API with MySQL, OTP verification, and password encryption

    Python 1

  3. Ecommerce-Return-Rate-Reduction-Analysis Ecommerce-Return-Rate-Reduction-Analysis Public

    Power BI dashboard and predictive model to analyze and reduce product return rates for an e-commerce platform.

    Jupyter Notebook 1

  4. currency-converter-api currency-converter-api Public

    Django Currency Conversion API with real-time exchange rates

    Python 1