DECs should be taken on only if there are no FOs suitable for upgrade at the time. Many of the DEC in Tiger AU were previously Captains in Tiger SIN and therefore had a known recent history, some were also ex Ansett or had flown in Australia before and had the required licence/passport.
New start ups always need DECs but at the moment you'd be behind the suitable F/Os and those coming from Singapore. Unfortunately it's an employers market at the moment.
QATAR or ETIHAD for DEC possibly early next year but worth getting the application in now.
email for TR recruitment is pilotcubs at tigerairways dot com