PDR1
4 year MEng + 2 years further training, + 2 years professional practice.
Or 3 year BEng + 1 year MSc + 2 years training + 2 years practice.
A degree does not qualify somebody to practice as an engineer with any independence, any more than you'd want somebody who'd passed all the ATPL TK, but done none of the actual flying and skill tests to be in charge of a passenger aircraft.
Which to be fair, you pretty much said, I was just expanding.