German to English Bus/Financial Accounting

Gleichzeitig erlangte ich die Diplome „Buchhalter mit eidg. Fachausweis“ und
„eidg. dipl. Buchhalter/Controller“.

I am splitting this into two questions because asking several terms in one question is not allowed, but actually my problem is to differentiate these two terms from each other. Apart from the added "Controller" bit in the second, I don't exactly understand the difference. I've found numerous matches of diverse variations of "certified accountant", Swiss Federal Accounting Certificate, etc. - but for both of them.

What exactly is the difference and how can I differentiate between them for the reader?

Thanks in advance!