Updated: 2:47 p.m.

The White House announced Friday that President Barack Obama has appointed Denis McDonough to serve as assistant to the president and deputy national security adviser.

Since September 2009, McDonough has served as National Security Council chief of staff. He also worked on national security issues as part of Obama’s transition team and previously served on the staff of former Senate Majority Leader Tom Daschle (D-S.D.).

“For years, I have counted on Denis McDonough’s expertise and counsel on national security issues. He possesses a remarkable intellect, irrepressible work ethic, and a sense of collegiality that has earned him the respect of his colleagues,” Obama said in a statement.

“I know that Denis will be indispensable to our entire national security team as we continue to protect the American people, and advance American interests and values around the world,” he added.

Senate Foreign Relations Chairman John Kerry called McDonough “an excellent choice” for the job.

“From his work on Capitol Hill to his portfolio in the campaign, Denis has always distinguished himself as a smart and strategic thinker. Most recently, he’s been a very effective NSC chief of staff who has earned the confidence of President Obama, and I’m confident he’ll do a great job in this new role,” the Massachusetts Democrat said.