Billuminate - Internal Billing Tool

Built an internal billing system that replaced manual invoice, receipt, and quotation workflows with a faster web-based process.

Problem

The team was creating billing documents manually in Word and Excel, which wasted time and made status tracking inconsistent.

Solution

Delivered a React frontend plus a Node.js and MySQL backend that generates PDF-ready billing documents and keeps payment status in sync.

Role

Role: Full-Stack Developer

Duration: 5 weeks

Responsibilities

• Requirements gathering and system design
• REST API development
• Frontend and document-generation flow
• Stripe integration and deployment

Highlights

• Role-based access for staff
• Server-side PDF generation
• Client and document history tracking

Outcome

• Document creation time dropped from about 15 minutes to under 2 minutes
• Payment status updates became automated
• The team gained a clear audit trail for billing records

What I Learned

• Server-side PDF generation is much more reliable than client-side rendering
• Stripe webhook idempotency is essential in production

Stack

React · TypeScript · Node.js · Express · MySQL · Stripe · Tailwind CSS · PDFKit