Technically, you can only apply for graduate jobs because there will be a chance of the employer sponsoring you for a visa.
Having said that, sometimes traineeship programs and/or internships specifically state their flexibility when it comes to visas. This means that they might hire an intern for the first few months and offer them a permanent role after a while in which case they would provide you with a work visa.
But, it is super important to understand the competitive nature of all the positions on Oliv so, as an international candidate, make sure you put in some extra charm into your profile (with a video CV, portfolios, work samples etc.).