99 Cent Only Stores, a discount retail chain based in Los Angeles, has hired Tom Rudenko to be the $1.8 billion company's new director of internal audit and chief audit executive.

Rudenko formerly headed up the internal audit function at Caesar's Corp., the gambling company in Las Vegas.

In his new role he will help the still-private business build out its systems of internal and audit control for a probable public offering sometime in the future.