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Nishant Roy | Tech Lead, Ads Serving PlatformIn May 2020, Pinterest launched a partnership with Shopify that allowed merchants to easily upload their catalogs to the Pinterest platform and create Product Pins and shopping ads. This vastly increased the number of shopping ads in our corpus available for our recommendation engine to choose from, when serving an ad on Pinterest. In order to continue to support this rapid growth, we leveraged a key-value (KV) store and some memory optimizations in G...