Engineering Case Studies

In-depth examinations of technical architectures, architectural decisions, and production platforms built by CODE4UTECH.

Web SaaS Platform FinTech & Invoicing

BillVeda

Smart GST-compliant invoicing web application built for Indian SMEs to eliminate manual billing paperwork, automate tax computation, and generate compliant invoices.

Cloud Invoicing GST Compliance PDF Rendering
Desktop POS Offline-First Engine

BillVeda Pro — Desktop

High-throughput offline desktop POS software engineered for retail counters with hardware barcode scanners, thermal receipt printers, and embedded SQLite data storage.

Desktop POS Offline-First Hardware Drivers
Read Case Study Desktop Software
Security Infrastructure Access Management

AuraLock

Enterprise access control, multi-tenant credential isolation, and sensitive authorization platform with end-to-end cryptographic secret encryption and audit logging.

RBAC Security Credential Vault Zero-Trust
Read Case Study Security Architecture

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