We map how the work really happens
Your engineer sits with the people doing the job — on-site where that is practical, because watching work happen surfaces things no interview will — and maps every step, exception and hand-off. Not the documented process: the real one, including the workarounds nobody mentions in a meeting and the judgement calls one person makes without noticing.
An operating map — how the process runs today, where the hours actually go, and what it would look like with automation built in. Written down properly and yours to keep. Most companies have never had this, and it earns its keep before a line of code exists.
About an hour a week from someone who genuinely knows the process, and permission to watch the work happen.