@nealkenken Since chem eng po kayo, mas mabuti po na skilled migration po kayo, gaya ng sinabi ni @aranayad. Marami pong klase ng skilled visas, with the most popular being 189 (independent), 190 (state-sponsored), and 489 (provisional) visas.
<a href="https://www.homeaffairs.gov.au/trav/work/empl/visa-options-comparison-charts">Comparison of Visa Options</a>
Essentially, how it works is that you have to meet the minimum points to qualify to receive an ITA (Invitation to Apply for PR visa). Based on your age, education, nominated occupation (chem eng in your course), state nominations, partner's skills, English proficiency, etc., you get points, which you can claim on your SkillSelect account/profile and create an EOI (Expression of Interest; it's like letting the state know that you want to migrate as a skill worker/professional).
If you get at least 60 points, you would qualify for an ITA. If you do get an ITA, you have to gather your documentation and lodge your PR visa application soon after and wait for the DHA (Department of Home Affairs, formerly Department of Immigration and Border Protection) to grant your PR visa. Processing times vary, but if you're skilled enough (with a good number of work experience, good English proficiency, and optimal age), it should be relatively easier to migrate as compared to pursuing the student visa route.