RejectedOnsite

Onsite System Design on Orderbooks, Rejected Before the Coding Round

Jane StreetSoftware Engineer · Onsite · Dec 2025

Real-time report from the London office. The OA and first-round phone interview are already covered elsewhere on the forum, so this is just filling in the details on R2 and the onsite. R2: a coding interview (sort trade) — this one's also up on Glassdoor. Compared to a typical algorithm question, the setup was closer to "how would you implement this feature in a trading system," testing your logi…

Shared by a candidate · reported Dec 2025. Interview formats change; use it as a guide, not a script.