[7][8] Prior to joining the Trump administration, Maloney was vice president of global government and external affairs for the Hess Corporation.

[13] While working as Representative Ed Bryant's (R-TN) legislative director from 1998 to 1999, Maloney was one of the aides and attorneys who interviewed Monica Lewinsky in the Mayflower Hotel's Presidential Suite during the Impeachment of Bill Clinton.

Maloney aided Congressman Bryant in his role as a House Manager (prosecutor) in President Clinton's trial in the United States Senate.

During law school, Maloney joined one of Alaska's main lobbying firms,[17] Robertson, Monagle & Eastaugh as a congressional liaison.

It was noted in a press release by former Texas House Minority Leader Jim Dunnam that Maloney's personal campaign contributions increased from $250 in 2002 to $75,000 in 2003.

[20] During this period, Maloney was employed concurrently by dozens of clients as a lobbyist, including the regional transmission organization PJM Interconnection (2002–2008);[21] the Gas Technology Institute (2006); the New York Mercantile Exchange (2007); and Cash America International (2009).

[13] In June 2012, Maloney left Ogilvy Government Relations to join the Republican National Committee as External Affairs Advisor during Mitt Romney's second unsuccessful presidential campaign.

[25] Maloney is married to Sabra Klein, a professor at the Johns Hopkins Bloomberg School of Public Health in Baltimore, Maryland.