Work/Chaitanya ERP: Heavy Machinery Sales & Inventory Architecture
Enterprise SaaS & SystemRole: Lead Full-Stack ArchitectTimeline: Apr 2023 to Jan 2024

Chaitanya ERP: Heavy Machinery Sales & Inventory Architecture

Custom CRM and ERP platform tailored for heavy equipment distributors, automating quotation generation, inventory tracking, and financial reconciliation.

-80% Time
Quotation Turnaround
100% Synced
Inventory Accuracy
-65% Discrepancies
Operational Error
Architectural Schematic

Decoupled Event-Driven ERP Architecture

50k Daily Transactions
Step 01 // Ingestion
REST & RPC Ingestion
Auth, Rate-limiting & Token Validation
Step 02 // Asynchronous
Redis Event Queue
Decouples transactional spikes from workers
Step 03 // Persistence
Postgres Replicas
Primary Writes + Split Read Pool
• Zero database table locking• Processing latency reduced by 74%• Automatic failure replay queue
01. The Problem

Heavy machinery distribution requires complex multi-tier quotations, varying equipment taxes, warranty terms, and high-value payment milestones. Manual spreadsheets caused delayed customer quotes, double-booked machine serial numbers, and reconciliation errors.

02. The Architecture & Approach

Engineered a full-cycle enterprise ERP covering customer pipelines, dynamic quotation generation with tax and accessory engines, machine serial tracking, payment collections, and automated financial audit logs.

03. The Result & Measurable Outcome

Streamlined multi-branch heavy machinery operations, reducing quotation creation time from hours to minutes and eliminating inventory dispatch conflicts across regional dealer locations.

Technologies & Infrastructure
CodeIgniter 4PHPMySQLRedisTCPDF / mPDFBootstrap

Key Modules

  1. Sales & Quotation Lifecycle: Multi-parameter price calculation factoring in attachments, freight, and GST slabs with instant PDF generation.
  2. Machine Serial & Warranty Ledger: Full lifecycle tracking of every equipment piece from supplier receipt to end-customer warranty registration.
  3. Financial Milestone Reconciliation: Automated invoice generation based on milestone payment schedules with bank transaction audit trails.
Direct Access

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