Prioritizing volume, cost, and engagement: LinkedIn took these steps to optimizing notifications
In the past, each LinkedIn application team decided their notification strategy in isolation. Business logic and infrastructure sharing were limited between the teams. This resulted in a fragmented and inconsistent tech stack across LinkedIn and a less than savory member notification experience. To combat this disjointed experience, Linkedin set up a small team to build an orchestration layer, the Air-Traffic Controller (ATC). This became one of the more complex notification systems and helped Linkedin grow into the top social platform for business and networking.
