Usually the best way to get around poor grades is to demonstrate ability in practice, through experience or vocational qualification. Perhaps you can find a post more suited to your stronger subjects and then cross-train or gain some professional accreditations to cover the gaps in your resume.However, do you know if it is specifically your "hsc" and "scc" exam grades that are letting you down? Have you had any feedback on this? It might be worth getting a CV review from a university careers advisor or someone who knows the specific market. For example, I don't know what your "scc" and "hsc" acronyms stand for (serial control and handset control?). Perhaps recruiters are simply having the same difficulties.
