Ryan Berni, a longtime aide and adviser to Mayor Mitch Landrieu, has been promoted to a deputy mayor’s post, the Mayor’s Office announced Wednesday.

Berni will serve as deputy mayor for external affairs, overseeing the city’s media department and lobbying efforts as well as some policy initiatives.

“Ryan has been an integral member of our senior team since 2010,” Landrieu said in a press release. “Given his work helping to lead the communications and intergovernmental affairs teams in the past five years, I am confident that he will be able to lead our team to even more successes.”

Berni has worked for Landrieu since the mayor took office in 2010, starting as press secretary and eventually serving as communications director.

After leaving City Hall in 2013 to manage Landrieu’s re-election campaign, he returned in 2014 as “senior adviser to the mayor.” However, he left again later that year to manage the final months of the failed re-election campaign of former U.S. Sen. Mary Landrieu, the mayor’s sister.

As senior adviser to the mayor, Berni was responsible for a variety of policy and public affairs initiatives, including the commemoration of the 10th anniversary of Hurricane Katrina, and had a hand in the city’s public relations efforts. He has been seen as a key adviser to Landrieu on political matters.

Berni previously worked as chief of staff for Democratic political consultant James Carville and in various capacities for the state Democratic Party.

As deputy mayor, he replaces Emily Arata, who left the administration earlier this month for a job with Ochsner Health Systems.

Berni has been making about $136,500 a year as senior adviser to Landrieu. In his new position he’ll have the same $147,000 salary that Arata had.