молодой специалист – 1. young professional; Пример употребления:
The term young professional generally refers to a young person not in school, usually in his/her late teens or early-mid 20's, who is employed in a profession or white-collar occupation. (Wikipedia).
From student to young professional: what to expect from working life.
As exam results are released and graduation draws closer, are you ready to start your career? (The Guardian).