Can’t Find a Science job in Australia

Hi, my boyfriend and I moved to Australia in January 2024, so we have been here a whole year now. When we first arrived (we are on WHV 417) we started applying for jobs in our professional experience, me in biopharma/biotech and my boyfriend in business consulting/data analyst. Initially in Melbourne he got a few interviews and I got one, both unsuccessful. Since then we had no luck so decided to get our 88 days regional work done, which we got sorted and started on in July 2024. This was on a solar farm in karratha. The project finished up and we got our days completed so we settled back in Perth and began the job hunt again in November. No luck before Christmas and now again after Christmas, I’ve applied for jobs all over Australia and rejection after rejection. My experience at home in Ireland was working as a Manufacturing process technician for inspection in a global American company. I’ve been applying for a lot of lab and QA office based roles. I know my experience doesn’t directly align with this but I want to break into roles like these where I can apply my eduction. I have a Bachelors in Biotechnology and a Masters in Bioprocess Engineering that I had just completed in 2023 before coming to Australia. We are beginning to give up. We are leaving at the end of our lease to travel around Australia and go back to Ireland in 3 months because I don’t want to be out of that industry for too long. I believe the main reason for this lack of success in securing jobs in the nature of the WHV 417 as most recruiters have told my boyfriend that this would be an issue. Has anyone else had similar experiences to this or have tips on how to navigate this? I also don’t want to work in hospitality as I’ve done this for a bit while over here and I’m just ready and really want to jump back into my career.