Tiger Airways has appointed Gerard Yeap, Singapore Airlines' (SIA) senior vice-president for flight operations, as a non-executive director.
The low-cost carrier did not specify his role within the board.
Yeap, who is an experienced pilot, has been with SIA for 39 years.
He has held senior training positions and was chief pilot for the carrier's Boeing 777 aircraft.
Yeap was also a non-executive director of SIA's regional carrier SilkAir from August 2002 to 2011 and is a member of the International Air Transport Association's (IATA) operations committee.
The appointment comes after Australia's Civil Aviation Safety Authority (CASA) suspended Tiger Airways Australia's operations on 1 July.
The suspension has been extended to 5 August as CASA believes that the low-cost carrier poses a "serious and imminent risk to air safety" following various incidents, including two breaches of flying below minimum safe altitude.
Tiger Airways Australia CEO Crawford Rix stepped down after the suspension and was replaced by Tony Davis on 6 July.
Davis was previously the CEO of the Tiger Airways Group in Singapore.
Chin Yau Seng, senior SIA executive and Tiger Airways executive director, was appointed to Davis' former position.
Chin is the former CEO of Silkair.
SIA has a 33% stake in Tiger Airways.