Recycle Point-of-Sale System

Project Overview

This enterprise-grade point-of-sale system revolutionizes recycling operations across multiple locations with sophisticated weighbridge integration, real-time inventory tracking, and comprehensive financial management. Built from the ground up as a cloud-native solution, the system handles thousands of daily transactions while maintaining sub-second response times.

Multi-Tenant Architecture

The multi-tenant architecture ensures data isolation between branches while providing centralized reporting and management capabilities. Real-time weighbridge integration automatically captures material weights, calculates pricing based on current market rates, and generates accurate transaction records without manual intervention.

Financial Management

Advanced financial management features include multi-currency support, automated float reconciliation, comprehensive audit trails, and intelligent reporting systems that provide real-time insights into operations, profitability, and efficiency metrics across all locations.

Scale & Performance

Processing over 5,000 daily transactions across 7 branches with 350+ employees demonstrates the system's enterprise-scale capabilities, while maintaining 100% transaction accuracy and 99.8% uptime.

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Key Features

Order Transactions

• Purchases, Sales, Refunds & Cancellations
• Weighbridge Notes (convertible into orders), attachments & document tracking
• Expenses & Loans modules with full audit trails
• Sequential POS order numbers with branch prefix and P/S suffix

Float & Cash Management

• New Float / Continue Previous Day Float
• Float Issue & Float Received (till-to-till transfers)
• Cashups with discrepancy breakdown reports
• Current Float dashboard (live tracking per user)

Customers, Branches & Users

• Customer types: Cash, Dealer, Account (with pricing logic)
• Customer views: invoices, purchase notes, loans, file attachments
• Branch session management, enable/disable branches
• User management: roles, multi-branch assignment, enable/disable (no hard deletes)

Products & Stock

• Per-branch purchase & sale price types (cash/dealer/account)
• Stock increments/decrements recorded (not ad-hoc counts)
• High-precision math (128-float) for pricing & VAT calculations

Reporting & Analytics

• Live, filterable dashboards: Weighbridge, Purchases, Sales, Trade Summary, Floats, Cashups, Customers, Products
• Line-item drill-downs for audits
• CSV export across reports for finance & ops workflows

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Technology & Architecture

• Frontend: React + Redux (high-volume CSR UX)
• Backend: Node.js + Express (real-time APIs)
• Database: Centralized MongoDB with branch-level isolation patterns
• Infrastructure: Cloud-hosted, CI/CD pipelines, observability
• Reliability: Sub-second responses, 99.8% uptime
• Design Process: Wireframes → themed UI → signed-off build for speed and consistency

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Process & Delivery

• Timeline: ~13 months (2021–2022) from planning to production
• Capacity: Solo full-stack consultant (~140 hrs/month)
• Roles covered: Architecture, PM, UX/UI, Development, QA, Support
• Rollout: Trialed Nov 2021 → full production by Jan 2022 across all branches

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Outcomes & Impact

• 100% transaction accuracy and audit compliance
• 80% reduction in processing time
• 95% employee adoption across 7 branches
• 60% improvement in operational efficiency
• Sustained 5,000+ daily transactions with centralized financial visibility

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Notable Controls & Edge Cases

• 10c rounding; exc. → inc. → exc. VAT checks for accuracy
• Order, payment, and float protection checks (guard rails for tills)
• No hard deletes (immutable audit history)
• Weighbridge metadata captured: delivery note #, vehicle reg, transporter info, container #, etc.
• Loans: sequential repayment logic applied automatically