[adjective] - having more knowledge, skill and/or experience than is needed (for a particular job)The problem with employing overqualified people is that they often don't stay in the job for long.They didn't give me the job because they said I was overqualified (for it).
OVERQUALIFIED
Meaning of OVERQUALIFIED in English
Cambridge English vocab. Кембриджский английский словарь. 2012