No-Camera OA, Passed 3 of 4 on a Banking System Design Problem

No need to turn the camera on. Out of four questions, all subtasks passed on three of them. I was just using it as practice — I didn't use AI, wrote all three questions myself. Level 1 and 2 were fairly simple. Design Banking System Level 3: Schedule Payments transfer(timestamp, source_account_id, target_account_id, amount) -> str|None At timestamp, deduct amount from source_account_id and freeze…

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