Two-Hour Bank Service Build, Then an HM Round

Valon's onsite format is pretty unusual: you get 2 hours to implement one problem. The goal is to build a banking service made up of 5 parts. My feeling is that you need to get through at least parts 3-4, but you are not required to finish everything. How the time is split: First 30 minutes: go through the problem with an engineer, discuss the design, and start building. Middle 90 minutes: you wr…

Shared by a candidate · reported Jan 2026. Interview formats change; use it as a guide, not a script.