TABLE OF CONTENT

About the Client

The client is a leading India-based fintech company that became the country’s first unicorn of 2020. Specializing in merchant services, they provide cutting-edge payment solutions, risk assessment, and reward programs to enhance digital transactions. Their mission is to simplify payment processing through innovation, ensuring seamless experiences for both merchants and customers.

Business Situation

The client needed to modernize their PoS application to improve performance and efficiency:

Inefficient offline transaction reconciliation led to data inconsistencies.
Lack of structured bank scheme categorization and approval workflows.
Poor search and sorting functionalities hindered transaction lookup.
Inadequate user journey tracking complicated troubleshooting and analysis.
Existing database limitations affected real-time transaction processing.
Unclear separation of transaction servicing and reconciliation workflows.

The Solution

Unthinkable worked closely with the client to audit and optimize their existing PoS system. We implemented Apache Kafka for seamless offline and online transaction reconciliation, ensuring no data loss. PostgreSQL replaced MongoDB to enable direct querying, improving transaction search and filtering. ELK stack (Elasticsearch, Logstash, and Kibana) was integrated for user journey tracking, providing clear and actionable insights. Bank scheme workflows were enhanced with structured categorization and real-time validation, making scheme approvals efficient and transparent.

Integrated Apache Kafka for smooth end-of-day transaction reconciliation.
Implemented PostgreSQL for direct transaction querying and sorting.
Enhanced bank scheme categorization and automated approval workflows.
Deployed ELK stack for efficient user journey tracking and log management.
Improved transaction reconciliation with clear bifurcation from servicing.
Enabled seamless integration of multiple payment gateways for flexibility.

The Impact

With Unthinkable’s intervention, the PoS system now supports seamless syncing of online and offline transactions, eliminating downtime and ensuring smooth payment processing. Merchants benefit from improved bank scheme categorization and approvals, reducing inefficiencies. Real-time user journey tracking enhances troubleshooting and system analytics. The modernized payment platform has provided a streamlined, scalable, and high-performance digital payment experience, earning high praise from the client.

Conclusion

Unthinkable successfully transformed the client’s PoS system, enabling them to provide a superior digital payment experience. By leveraging advanced technologies like Apache Kafka, PostgreSQL, and ELK stack, we optimized transaction processing, enhanced scheme approvals, and improved analytics. Our tailored approach helped the client overcome key operational bottlenecks, ensuring their platform remains at the forefront of fintech innovation. This project underscores Unthinkable’s ability to drive digital transformation for industry leaders in the fintech space.