Rakuten Reduces Recovery Time by 50% Using Codex
Rakuten’s Secret Sauce: How Codex Turned “Oops” Into “Done” in Half the Time When I first heard that a Japanese e‑commerce giant was letting an AI write code for them, I imagined a scene straight out of a sci‑fi office comedy: engineers sipping matcha while a glowing bot spits out perfect functions, and everyone nods like it’s just another Tuesday. Spoiler alert – it’s not that clean. But the reality is still pretty impressive. Rakuten, the sprawling “everything‑store” that powers a huge slice of online shopping, fintech, and mobile services, has been quietly weaving OpenAI’s Codex into its day‑to‑day engineering workflow. The result? A 50 % drop in mean‑time‑to‑recovery (MTTR) for incidents, quarter‑long projects shrinking to weeks, and a new kind of developer role that feels more like “spec‑writer” than “debugger.” ...