Company blogs
Engineering and data science write-ups straight from the teams at 30 companies. Each one summarised in a line or two and sorted by subject. New posts are added every morning.
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Airbnb built CASTLE, a system that generates synthetic queries and relevance labels from de‑identified booking and search signals to train its natural language search model, overcoming the cold‑start problem and enabling guests to search using free‑form intent.
Airbnb built a system that captures real MySQL-compatible database traffic and replays it offline to load‑test, plan capacity, and de‑risk upgrades.
Airbnb uses proximity signals to personalize experiences for users without login or history, addressing cold‑start challenges in search ranking and recommendations.
Shopify
AWS Architecture