Silver Airways is now trolling for E3s. But, FAA CPL, MEL, IR appears to be required. No mention of how much Silver will do toward the ATP. This will probably cut down on the number of Aussies applying ? This listed under "minimum requirements":
FAA Commercial Pilot Certificate - Multi-engine, Land, Instrument Ratings
https://workforcenow.adp.com/mascsr/...=silverwebsite
https://www.silverairways.com/career...ce=SkyJobs.com