HELP Averageifs multiples

Hi Guys I am new here, and I will introduce my self properly soon.

I have a problem.
here is an example
(Column A) (Column B) (Column C) (Column D) (Column E)
LAST_NAME FIRST_NAME GENDER AGE Job Role
James wo m 20 DR
B ho m 30 Junior DR
C chow F 10 Junior DR
D lee F 10 Junior DR

Average the Age

Okay so I know how to averageIf, for one criteria. EG. =Averageif(D:D,C:C,"M",E:E,"DR")

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Now the problem is that I want an Averageifs on Junior Dr(s), how do I write it??
help please