Eightfold.AI Lead Backend SDE-3 Interview HM Coding and HLD

Sharing my interview experience for SDE-3(lead) engineer role at Eightfold.ai ### Round 1: HM Mostly discussed around past projects, your contribution and behavioral questions ### Round 2: Coding + HL

Sharing my interview experience for SDE-3(lead) engineer role at Eightfold.ai ### Round 1: HM Mostly discussed around past projects, your contribution and behavioral questions ### Round 2: Coding + HLD You receive strings one by one from a stream. After each insertion, you must output: the oldest string that has appeared exactly once so far If no such string exists, return "" Example Stream: a, b, a, c, b, d After each insert: insert a → oldest non-repeating = a insert b → a insert a → b insert c → b insert b → c insert d → c Output: a, a, b, b, c, c For HLD : Design Notification Service.