Yelp Engineering Blog

Undebt: How We Refactored 3M Lines of Code

Undebt: How We Refactored 3 Million Lines of Code Evan H., Software Engineering Intern Aug 23, 2016 Peter Seibel wrote that to maximize engineering effectiveness, “Let a thousand flowers bloom....

Introducing Yelp's GraphQL API

Introducing Yelp's Local Graph Tomer Elmalem, Software Engineer May 3, 2017 We’re continuously adding new features to our API to make it easier for developers to integrate with our data...

Billions of Messages a Day – Yelp's Real-Time Data Pipeline

Billions of Messages a Day - Yelp's Real-time Data Pipeline Justin C., Software Engineer Jul 14, 2016 This post is part of a series covering Yelp's real-time streaming data infrastructure....

Introducing dumb-init, an init system for Docker containers

Introducing dumb-init, an init system for Docker containers Chris K., Software Engineer Jan 6, 2016 At Yelp we use Docker containers everywhere: we run tests in them, build tools around...

Making Photos Smaller Without Quality Loss

Making Photos Smaller Without Quality Loss Stephen Arthur, Software Engineer Jun 1, 2017 Yelp has over 100 million user-generated photos ranging from pictures of dinners or haircuts, to one of...

True Zero-Downtime HAProxy Reloads

Open-sourcing Clusterman, a cluster autoscaler for Kubernetes and Mesos

Remember Clusterman? Now It's Open-Source, and Supports Kubernetes Too! David R. Morrison, Compute Infra Tech Lead Nov 11, 2019 Earlier this year, I wrote a blog post showing off some...

Streaming Messages from Kafka into Redshift in Near Real-Time

Streaming Messages from Kafka into Redshift in near Real-Time Shahid C., Software Engineer Oct 17, 2016 This post is part of a series covering Yelp's real-time streaming data infrastructure. Our...

Pyleus: An Open-source Framework for Building Storm Topologies in Pure Python

Introducing Pyleus: An Open-source Framework for Building Storm Topologies in Pure Python Patrick L., Software Engineer Oct 15, 2014 Yelp loves Python, and we use it at scale to power...

Yelp’s Style Guide

Yelp’s got style (and the guide to back it up) Molly F. Front-End Engineer Feb 11, 2014 We’re excited to publicly share Yelp’s styleguide — a living document that we’ve...

mrjob: Yelp open sources its Elastic MapReduce framework for Python

mrjob: Distributed Computing for Everybody Dave M Search and Data-Mining Engineer Oct 29, 2010 Ever wonder how we power the People Who Viewed this Also Viewed… feature? How does Yelp...