Not this year they won’t be.
As I learned when my daughter applied for consulting jobs through on-campus recruiting, consulting companies recruit early in the school year. Jobs are offered and accepted in November with start dates in the following summer. There are deadlines for accepting offers. It may be possible to stall a company for a week or two (my daughter did this), but not for months.
Other industries may recruit later. Some of my daughter’s classmates had the unnerving experience of being jobless when all around them already had accepted offers simply because the industries they wanted hadn’t done their recruiting yet.
To the OP: Is your daughter interested in taking this consulting job primarily because it’s a bird in the hand and she won’t be able to see what’s in the engineering bush for several more months? That could be a problem, especially if she really wanted a career in engineering.