Hello, http://www.profesia.sk/ will be your best bet. But Liptovsky Mikulas is really small city. I would rather recommend local newspapers, bulletin boards, local social office and of course ask friends. Most of the work in Slovakia is agreed by friends, you need contacts. But if you look for some international companies with operations nearby, that could be good bet. Also consider teaching english, recently passed a law, that also uncertified native speakers could teach english.