@remisnowhere bro I assumed you are into facilities or property management field of work right? Ok naman yan as you are still involved in the operation and maintenance of mechanical equipments (HVAC, pumps, towers, elevators, etc.) Basta, create career episodes at least 3 significant highlights (CDR ang term bro if papa assess mo sa Engineers Australia profession mo like I did in the process after passing my IELTS exam). At least you got 3-5 years experience in the application of your profession as ME will do. Otherwise if si GF mo has 5 years up experience in her field of work, better na sya mag apply as principal applicant for better chances of invitation for migration under skills independent pathway. Hope this info help a bit.