Saeerha

Saeerha lets users photograph a product and instantly receive its price. The core pricing algorithm was too slow and expensive to run at scale, hurting both response times and operating costs.

Push notifications were also sluggish — a critical issue for a product where the whole value proposition is instant answers. The client needed speed without sacrificing a moderate level of accuracy.

Refactored the pricing algorithm to be faster and cheaper to execute while keeping accuracy within the threshold the client defined as acceptable. This involved profiling the hot paths and replacing expensive operations with lighter-weight equivalents.

Redesigned the notification pipeline, eliminating the bottlenecks that were adding latency. The result was a notification delivery time reduced by more than 90%.