Contact person: Business Client

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Location: Patna, India

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I need a web-based glass billing application that handles the entire workflow for my shop—from stock entry to invoice and post-sale reporting—directly in the browser. Core modules must include:

• Inventory management that understands glass-specific units (sheet size, thickness, square feet, remnants), supports barcode/QR codes, and tracks stock in real time.
• Invoicing with custom templates, automatic tax calculations, PDF generation, and the ability to convert estimates into bills in one click.
• A searchable customer database with contact history, purchase statistics, and credit limits.

Seamless two-way integration is essential with our existing accounting software, CRM system, and ERP system through exposed REST or GraphQL APIs and webhooks. The UI should be responsive for desktop and tablet, offer role-based access, and include audit logs for compliance.

Deliverables: full source code, database schema, API documentation, deployment guide, and a staging instance for user acceptance testing.

Acceptance criteria:
1. Stock levels update instantly when an invoice is saved.
2. Customer records sync within five minutes of changes in the CRM.
3. Accounting and ERP ledgers post cleanly without manual adjustment.
4. All pages score at least 90 in Google Lighthouse performance tests.

Tech stack is up to you—React, Vue, or Angular on the front end and Node, Django, or Laravel on the back end are all fine—so long as it is easy to maintain and runs in a standard Linux environment. Security, clean code, and clear documentation will weigh heavily in my final evaluation." (client-provided description)