The Internet Still Works: Yelp Protects Consumer Reviews
• Section 230 helps make it possible for online communities to host user speech: from restaurant reviews, to fan fiction, to collaborative encyclopedias. • But recent debates about
Yelp
How Yelp Built a Back-Testing Engine for Safer, Smarter Ad Budget Allocation
• How Yelp Built a Back-Testing Engine for Safer, Smarter Ad Budget Allocation - Samuele Mazzanti, Applied Scientist - Feb 2, 2026 Introduction Modern advertising platforms are fas
Exploring CHAOS: Building a Backend for Server-Driven UI
• CHAOS is Yelp’s server‑driven UI framework delivering dynamic content via GraphQL. • Clients query the CHAOS API, which forwards to a federated GraphQL subgraph. • Apollo Federat
Journey to Zero Trust Access
• Yelp transitioned to fully remote, requiring secure, consistent access for a globally distributed workforce. • Existing VPN (Ivanti Pulse Secure) was unreliable, prompting a sear
Revenue Automation Series: Building Revenue Data Pipeline
• Yelp’s expanding revenue streams demanded automated recognition beyond manual processes. • The REVREC SaaS solution offers real‑time reconciliation, faster book‑closing, and inst
Search Query Understanding with LLMs: From Ideation to Production
• Yelp integrates LLMs to interpret search queries, improving intent detection for millions of daily searches. • The team tackled spelling correction, segmentation, canonicalizatio
Revisiting Compute Scaling
• Yelp’s node autoscaler evolved from Clusterman to AWS Karpenter to improve scaling efficiency. • Clusterman managed ASG pools via setpoints balancing requested vs allocatable res