If you're set on Network File Systems jobs in Dublin, there aren't very many at present: we count 7. Have you tried neighbouring regions? Subsections include most dominantly Windows Communication And Services and Inter-Process Communication.
Vacancies in this area are currently only available to very practiced Network File Systems applicants. Despite the proliferation of startups, there are currently no startup companies publishing job offers that reference Network File Systems. Many other skills are in demand in this region. You should check them out on the right side of the page.