Pinterest Engineering

New on the blog: how we infer user journeys - the latent goal behind weeks of saves, searches & closeups. Learn how we serve fine-tuned LLMs to hundreds of millions of users, and what's next with Semantic IDs & generative recommendations: medium.com/pinterest-engi…

Learn about Metrics Board, our platform for defining, computing, and publishing metrics. It drives speed, context, and efficiency with one idea: define a metric once, as a versioned spec, and let everything downstream follow - including analytic agents. medium.com/pinterest-engi…

We're excited to announce our 7th Annual ML Day Conference on November 5. Get ready for keynote sessions with Pinterest Engineering leaders, panel discussions on AI at Pinterest and lightning talks that dive deep on ML innovation. Register now: events.ringcentral.com/events/pintere…

Streaming ingestion gives us fresher data in minutes, but how do we know when a partition is complete enough to read?

Learn how we restore that guarantee with Iceberg commits, safe-to-read watermarks and reusable Flink-to-Iceberg sink extensions. medium.com/pinterest-engi…

Learn how the team launched the first 3-tower engagement co-train model for ads lightweight ranking at Pinterest, introducing richer user-ad interactions while maintaining the latency and cost efficiency required at scale. medium.com/pinterest-engi…