Official Proxima In-House Flagship Product

Proxima Billing — GST & POS Suite

Launch Live Platform (gstsoftware-chi.vercel.app)Owned & Maintained by Proxima Technova

https://gstsoftware-chi.vercel.app/

Timeline

Continuous Production

Architecture

Cloud-Native

Performance

99.9% Uptime

Status

Production Live

Architecture & Scope

Our proprietary in-house enterprise GST billing, POS counter sales & real-time inventory management platform with automated GST tax calculation, e-invoicing, stock tracking, and PWA desktop app support. Designed and engineered from the ground up, this system provides modular functionality, robust data integrity, and high-concurrency throughput.

Proxima Billing is designed to handle fast-paced retail POS counters and wholesale distributors across India with instant invoice generation, live stock deductions, and one-click GST reports.

Technical Challenge

Calculating multi-tier Indian GST rates (CGST, SGST, IGST), generating HSN/SAC compliant tax invoices, instant UPI QR code payment embedding, and fast POS counter billing with offline resilience.

Engineered Solution

Designed a high-speed React & TypeScript client with instant PDF invoice rendering, local storage sync for offline counter sales, automated inventory ledger deduction, and PWA installation.

Core Deliverables

POS Fast Counter Billing with Thermal Receipt Mode

Automated GST Invoicing (Rule 48 & HSN / SAC Codes)

Dynamic UPI QR Code Generation on Every Bill

Real-Time Stock, Inventory & Low-Stock Alerts

Customer & Supplier Khata (Ledger & ITC Tracking)

Installable Desktop Application via PWA

Tech Stack Employed

ReactTypeScriptGST SaaSIn-House Product

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