JUN 2, 2026

The Problem with Timeseries Data in Machine Learning Feature Systems

Introduction The Feature Systems team at Etsy is responsible for the platform and services through which machine learning (ML) practitioners create, manage and...

AI Machine Learning Timeseries Data Feature Engineering

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Shaping Product Understanding with Contrastive Reinforcement Learning

Etsy’s marketplace is defined by the creativity and craftsmanship of our sellers and the hundreds of millions of highly diverse products they offer. You can...

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EtsyMar 20, 2026

Making Ads Count: Using MMoE and Auxiliary Tasks to Better Connect Buyers & Sellers

When buyers search on Etsy, they need to quickly and easily find the perfect item. At the same time, sellers need to be confident their unique products are...

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13 min

Weekly Brief

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EtsyMar 20, 2026

Making Ads Count: Using MMoE and Auxiliary Tasks to Better Connect Buyers & Sellers

When buyers search on Etsy, they need to quickly and easily find the perfect item. At the same time, sellers need to be confident their unique products are...

PlatformFrontend

13 min