RejectedOnsite

Product Judgment and a Changed Role

WayfairApplied Scientist · Onsite · Sep 2026

The author describes a Wayfair machine-learning scientist interview beginning with an advertising-bidding case. Virtual-onsite exercises covered homepage module ranking, recommendations sent after a purchase, an AI-assisted bandit simulation, and behavioral questions. The coding session permitted AI tools and web searches with screen sharing, but follow-ups required explanations of bandit strateg…

Shared by a candidate · reported Sep 2026. Interview formats change; use it as a guide, not a script.