Quant Developer Second Round, Data Processing and Weather Forecast System Design

I recently interviewed for a Quant Developer role at Engelhart, on the US Power & Gas side. The second round was two hours, split into data processing and system design. The data processing part was done in something like Colab, but it was super annoying: the file the interviewer wanted me to open wouldn't load (404), so I had to quickly download some time series + node data from a website, hourl…

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