"specialist qualifications" is correct and can be used in written English.
It can be used to indicate any type of specialized qualifications or educational requirements that a person may have. For example, "In order to be considered for this position, you must possess specialist qualifications in accounting."
Other specialist qualifications are explained on the IFAP website.
Specialist qualifications in investment advice are G70 and the Investment Management Certificate (IMC).
When physicians join the medical corps, they may join with specialist qualifications, or they may obtain such qualifications while in the army.
Your solicitor must have the appropriate specialist qualifications to be permitted to advise on care planning (which is not the case if you are simply making a will).
These specialist qualifications are also competing with the MBA: a March 2013 survey by Carrington Crisp, education marketeers, found a quarter of prospective MBA students would definitely consider a specialist Masters as an alternative to an MBA, with another 20 per cent saying it was a possibility.
Non-clinical users were older and had fewer specialist qualifications.
[This] programme is a specialist qualification delivered by leading tutors for the teaching of English to young learners.
Another way to beef up your applications and position yourself for a step up in a particular sector is studying for a specialist qualification.
It also found 65% did not have sufficient nurses with a specialist qualification in neonatal care and that 70% treated more babies than was recommended.
If you want to do a specialist qualification in say, finance, why do an MBA in finance for north of £21,000 when you could do an MSc in banking and finance for less than half the price?
But I doubt if the Home Office – if it has ever had a liberal phase - has ever appointed anyone to the ACMD with the sole specialist qualification of being a long-term campaigner for drug legalisation.
