Shubham Upadhyay

Senior Backend Architect

Open to Collaborate
Bengaluru, IN
Connect Channels
WEB APPLICATION Dec 2021 – Sep 2022

Letus Code (E-commerce ERP)

Manufacturing to order platform with CRM, order tracking and automation.

Letus Code is a custom manufacturing and quotation platform where clients can request CNC machining parts, get instant quotes, and track order progress. The platform integrates with Shopify and provides a complete workflow from inquiry to dispatch.

Letus Code (E-commerce ERP) Preview
01.

Project Overview

Letus Code is a full-stack web application that simplifies the process of getting custom manufactured parts. It allows users to upload drawings, get instant quotations, place orders, and track production status. The platform also includes an internal CRM, admin panel, and integrations with third-party services.

“The goal was to make custom manufacturing as easy as online shopping.”

02.

Business Problem

Customers had to rely on manual emails and phone calls to get quotes, which was slow and error-prone. The client wanted a digital solution to automate the entire workflow — from inquiry to production to delivery — while integrating with their existing Shopify store.

03.

Solution & Architecture

I designed and developed a modular architecture with separate modules for customer portal, admin dashboard, quotation engine, order management, and CRM. The system was built to be scalable and easily extensible for future integrations.

Client
(Web / Mobile)
←––→
NGINX
(Reverse Proxy)
–––→
Laravel
(Application)
MySQL
(Database)
Redis
(Cache / Queue)
–––→
Target Databases & APIs
Shopify
(E-commerce)
Razorpay
(Payments)
Email / SMS
(Notifications)
04.

Technology Stack

PHP 8.1 Laravel MySQL Redis Nginx Shopify API Razorpay JavaScript jQuery HTML / CSS Bootstrap Git Linux (Ubuntu)
05.

Challenges & Results

Key Challenges

  • Complex quotation logic with multiple parameters and material types.
  • Syncing inventory and orders with Shopify in real-time.
  • Handling large file uploads for CAD drawings.
  • Implementing a role-based access control system.
  • Ensuring system performance with heavy database queries.

Results & Impact

  • Reduced quotation time from hours to minutes.
  • Improved customer experience and order transparency.
  • Streamlined internal operations and reduced manual work.
  • Successful integration with Shopify and Razorpay.
06.

Lessons Learned

This project strengthened my skills in building scalable web applications, third-party integrations, and optimizing database performance. It also taught me the importance of understanding real business workflows and designing flexible systems.

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