The nightly job that took 1 hour now takes 9, since a new source was onboarded. Triage it live.
The capstone triage scenario data-platform FDEs get role-played through. A 9x blowup with an obvious-looking suspect, the scoring is on your diagnostic order, the questions you ask, and not stopping at the first plausible cause.
Updated Sep 2026 · Grounded in real Forward Deployed Engineer interview loops and written to a senior-engineer editorial bar.
The capstone triage scenario data-platform FDEs get role-played through. A 9x blowup with an obvious-looking suspect, the scoring is on your diagnostic order, the questions you ask, and not stopping at the first plausible cause.
Lead with where the obvious approach breaks, because that is the judgment they are screening for — most candidates jump straight to the happy path and lose the room.
Then walk the failure back through the pipeline in order, naming the one metric the customer's exec sponsor actually cares about before you propose the fix.
