The customer says 'our data can't leave our environment.' Walk me through the deployment options and what each really buys.
'Can't leave our environment' means four different things to four different stakeholders. The FDE skill is decomposing the demand into the actual requirement, and knowing which deployment tier each requirement really needs.
Updated Aug 2026 · Grounded in real Forward Deployed Engineer interview loops and written to a senior-engineer editorial bar.
'Can't leave our environment' means four different things to four different stakeholders. The FDE skill is decomposing the demand into the actual requirement, and knowing which deployment tier each requirement really needs.
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.