Tutor Perini Corp. has promoted longtime company executive James Frost to president and chief operating officer.

Frost has worked at the Sylmar construction company for more than 25 years supervising a number of high-profile projects, including part of the 9-11 Ground Zero reconstruction and the massive Hudson Yards mixed use complex in New York. Since 2008, he has served as chief executive of Tutor Perini’s Civil Group, which focuses on building and renovating infrastructure projects.

“He has done an outstanding job in leading the growth of Tutor Perini’s Civil group, our fastest growing and most profitable segment,” said Chief Executive Ron Tutor in a statement. “I am pleased to promote Jack to his new position and have full confidence in his ability to provide broader leadership to drive continued growth and profitability.”

Previously, Robert Band served as president but the company didn’t have a chief operating officer. Rather, Tutor directly supervised the chief executives of the company’s three operating divisions. Tutor previously has told the Business Journal that he plans to take less of a day-to-day role in managing the company.

As part of the management realignment, Band has resigned from the Tutor Perini board but will continue to serve as chief executive of the Perini Management Services division. Frost will join the board and take Band’s seat.

Tutor Perini announced the personnel changes late Friday. Shares did not trade Monday due to the President’s Day holiday.