[1] Rattner joined Donaldson, Lufkin & Jenrette in 1985 as an associate in its Investment Banking division working in DLJ's top ranked leveraged finance business.

In 2000, when Donaldson, Lufkin & Jenrette was acquired by Credit Suisse First Boston, Rattner was Head of International Fixed Income.

Rattner would move to become the Head of European Leveraged Finance responsible for all underwriting and client coverage involving the high yield and syndicated loan products for the merged firm.

In 2001, Rattner was named head of Credit Suisse First Boston's private equity affiliate, DLJ Merchant Banking Partners.

[2] Rattner has also served on the boards of various companies including Warner Chilcott, United Site Services, Hard Rock Hotel, and Peach Holdings.