@hopefully This is only my opinion based on your experience, you should get a white card, Tbosiet . These may help but not necessarily land you a job. below is from a job ad for electrician in an LNG plant.
</ul>Hold a valid NT Electrical Licence
</ul>Hold an OH&S Construction Induction Safety Card and relevant Licences and/or Australia trade recognition.
</ul>Minimum of 5 years' experience working in civil construction on large scale projects, LNG experience is desirable.