Core Banking systems have a wide spectrum of business functionalities. Any technology partner should have a team of SMEs, with in-depth domain knowledge and experience. Mobile and browser technology fragmentation, end-to-end validation of both front/back-end systems, and ensuring a consistent multi-channel delivery experience are just some of the many aspects that may need to be considered. Certain time-based events create a spike across the Banking/Payment portals. Performance failures in banking portals can have a serious effect on the consumer. Tuning the products to reach the required performance levels requires robust infrastructure, connectivity, and seamless integration into the backend systems.