Willem Pienaar is the co-creator of Feast, the leading open source feature store, which he leads the development of as a tech lead at Tecton. Previously, he led the ML platform team at Gojek, a super-app in Southeast Asia.Learn more:https://twitter.com/willpienaarhttps://feast.dev/Every Thursday I send out the most useful things I’ve learned, curated specifically for the busy machine learning engineer. Sign up here: https://www.cyou.ai/newsletterFollow Charlie on Twitter: https://twitter.com/CharlieYouAISubscribe to ML Engineered: https://mlengineered.com/listenComments? Questions? Submit them here: http://bit.ly/mle-surveyTake the Giving What We Can Pledge: https://www.givingwhatwecan.org/Timestamps:02:15 How Willem got started in computer science03:40 Paying for college by starting an ISP05:25 Willem's experience creating Gojek's ML platform21:45 Issues faced that led to the creation of Feast26:45 Lessons learned building Feast33:45 Integrating Feast with data quality monitoring tools40:10 What it looks like for a team to adopt Feast44:20 Feast's current integrations and future roadmap46:05 How a data scientist would use Feast when creating a model49:40 How the feature store pattern handles DAGs of models52:00 Priorities for a startup's data infrastructure55:00 Integrating with Amundsen, Lyft's data catalog57:15 The evolution of data and MLOps tool standards for interoperability01:01:35 Other tools in the modern data stack01:04:30 The interplay between open and closed source offeringsLinks:Feast's GithubGojek Data Science BlogData Build Tool (DBT)Tensorflow Data Validation (TFDV)A State of FeastGoogle BigQueryLyft AmundsenCortexKubeflowMLFlow