National-scale Billing System for a Vietnamese government agency — public tender 2024

The Challenge

A major Vietnamese government agency required a centralized billing platform capable of handling millions of transactions per month across a nationwide network of service points. The system needed to comply with strict government cybersecurity standards, support multi-tier pricing models, and integrate with existing national identity and treasury systems. Procurement was conducted through a competitive public tender with rigorous technical and commercial evaluation.

Our Approach

• 01Participated in and won the public tender through a combination of competitive pricing and a strong technical proposal.
• 02Designed a modular billing architecture separating rating, invoicing, and payment reconciliation into microservices.
• 03Built compliance-first data handling with end-to-end encryption, audit trails, and role-based access aligned with government security frameworks.
• 04Integrated with the national treasury system for automated revenue collection and reporting.
• 05Delivered comprehensive user training, operations manuals, and a 24/7 support contract post go-live.

Results

• System passed acceptance testing on the first attempt with zero critical defects.
• On-time delivery within the tender's contractual timeline.
• Achieved Tier-1 security clearance for handling sensitive government revenue data.
• Reduced manual reconciliation effort by ~70% through automated billing workflows.