Reel Friends: Building Social Discovery that Scales to Billions
Friend Bubbles, which highlights Reels that friends have watched and reacted to, may seem simple on the surface. But such straightforward-looking features often hide the deepest engineering complexity.
In the latest episode of the Meta Tech Podcast, host Pascal Hartig speaks with Subasree and Joseph, software engineers on the Facebook Reels team, about the work behind Friend Bubbles. The discussion covers the evolving machine learning model driving the feature, the differing behaviors observed between iOS and Android users, and the surprising insight that ultimately made the feature work as intended.
The episode is available on Spotify, Apple Podcasts, and Pocket Casts, or wherever you get your podcasts.
