What type of previous military service did you have?
If an 'experienced jet airliner pilot' turned out to be from some bottom-feeding loco airline then, unless he/she held already held an A330 Type Rating, I can't see him/her being greatly welcomed.
For example, most 'proper' airlines won't even look at a CV which includes the word 'Ryanair' - it's the kiss of death....'If you lie down with the Devil, you will wake up in hell'. Perhaps AirTanker are equally prescient? I don't know.
Certainly when this was discussed many years ago, the opinion amongst tanker aircrew at the time was that the simple A-to-B trash-hauling requirements might be no problem for some civvy pilot.
AAR operations, however, would be a totally different matter.