I think employers are more often than not interested in someone with "maturity".
30isnt old... just think, the newly qualified 40year-old flight Sergent who may have ...many years experience on VC10's or Chinooks, those popular civil aircraft may be in a comparable position to yourself.
If you have four years before you plan to leave it may be possible to do some holiday/resettlement work to get your civil time in with a local aircraft company.
Good luck