In progressTechnical Screen

The Energy One Mini Case and a Same-Day Power Day Callback

Capital OneData Scientist · Technical Screen · Oct 2025

Mini case, midday on 3/18/2025. The question was one someone had already shared here before — the Energy One case. The interviewer gave a short self-introduction, then asked about my background — worth remembering to prep for that too, I was so focused on the mini case that I answered it pretty roughly. Then we got into the actual case. There's an energy company called Energy One that wants to tr…

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