There are a number of work-visa options for skilled short term, medium- and long-term visas.
There are other employer sponsored visa options to fill up a temporary or even permanent roles.
Employers may, even, sponsor someone to travel to Australia to work in short term roles, activities or for training.
Australia is currently promoting its regional areas and introduces various visa programs from time to time, based on regional employer requirements. There is a high demand of these categories of visas because of the relaxed eligibility criteria.