In germany the better term and profession (for the tax office) is "system software consultant". Because this is a free profession, in contrast to other consultants who are non-free trade "gewerbe" with additional mandatory taxes and what else. E.g. application SW consultant, strategy consultant or just consultant is non-free.

Yeah, there is a bunch of "xyz consultant" titles floating around in English. Executive, corporate, or financial consultant are some more. For the English titles, the distinction seems to be that the "management consultant" is the (more wages-level payed) work-for-hire guy.