Weaver: CashAppÕs Real Time ML Ranking System

In this session, we will talk about one of the core infrastructure systems to personalize the experience on the CashApp, Weaver, and the work we did to scale it. Weaver is our real-time ML ranking system to rank items for search and recommendation use cases. We provide plug-and-play feature store and model hosting backends to meet various needs. We will share our experience on optimizing our service.