This is a qualification that can be achieved by attending a training course, organised by an independent adult education training institute. So there is probably not any fixed equivalent for this "degree" as there hardly is just similar kind of education in other countries. This is so-called "näyttötutkinto" where the students (usually along with their work) attend lectures on ca. 10-20 days/year, do independent homework and attest their skills and knowledge by personal demonstration work. (On the page given in the web reference you will find a link to the brochure about this schooling)