CIP TopUp Web Application

The Challenge

The business had been experiencing a steady and significant decline in performance, revenue, and customer retention over several years, primarily driven by deep-rooted technical debt. Legacy systems that had not been modernised created multiple critical bottlenecks: transaction processing was painfully slow and unreliable, leading to frequent timeouts and abandoned user journeys; security vulnerabilities had become increasingly severe and exposed the platform to growing risks; the underlying infrastructure was outdated and unscalable, resulting in high maintenance costs and frequent downtime; and the application interfaces were clunky, non-intuitive, and visually outdated, which frustrated users and actively damaged brand perception.

These accumulated issues were not isolated problems but had become systemic, compounding one another to erode operational efficiency, limit growth potential, and weaken competitive positioning in the market. The technical debt had reached a point where incremental fixes were no longer viable, turning what should have been a growth engine into a constant drag on the entire business.

Our Solution

To address the deep-rooted technical debt and systemic limitations, Team Darphiz led a comprehensive modernisation initiative that completely transformed the client’s technology landscape. We rebuilt the core application on modern, future-proof stacks using TypeScript and Python, with a strong emphasis on scalability, maintainability, and enterprise-grade security from the ground up.

The migration to the new platform was executed with zero downtime, ensuring uninterrupted service throughout the transition. We introduced a fully native mobile application to deliver a superior, on-the-go user experience that aligned with modern customer expectations. Over-the-air (OTA) update capabilities were implemented, enabling seamless, real-time feature deployments and bug fixes without any disruption to end users.

On the web side, we developed clean, high-performance web applications paired with a robust administrative dashboard specifically designed for high-stakes “situation room” environments. This admin portal provides deep, real-time business insights and enforces strict role-based permissions to maintain security and operational control at every level.

Beyond the main application, we architected and deployed a suite of lightweight, purpose-built microservices that significantly strengthened the overall ecosystem. These included dedicated auditing services, real-time monitoring and alerting systems, background job workers, and several other operational utilities tailored to the client’s unique business needs. This modular microservices approach dramatically improved system resilience, observability, and operational efficiency while laying a solid foundation for future growth.

The result was a complete technical overhaul that replaced fragile legacy systems with a modern, secure, and highly maintainable platform engineered for long-term success.

Impact

The modernisation delivered strong results within four months. User base grew by approximately 80%, while customer retention rates improved significantly.

Play Store ratings rose from 3.9 to 4.3, and App Store ratings increased from 1.x to about 3.x. Mobile app stability improved dramatically, with crash and ANR rates dropping from 38% to 0.2%.

The new scalable architecture now enables the client to quickly introduce new services, driving further revenue growth and long-term business expansion.