Leidos named Roger Krone its new chief executive Tuesday, succeeding John P. Jumper, above, who will stay on as chairman of the company’s board of directors. (Jeffrey MacMillan/The Washington Post)

Reston-based Leidos named Boeing executive Roger Krone its new chief executive Tuesday, ending a four-month search for a new leader since current chief John P. Jumper announced his retirement earlier this year.

Krone, who heads Boeing’s Network and Space Systems division, plans to start July 14. Jumper will stay on as chairman of the company’s board of directors.

“Roger has a solid track record of operational, strategic and financial execution,” Lawrence Nussdorf, lead director of the company’s board, said in a statement. “[His] depth of experience will enable him to drive the Leidos strategy, while enhancing and optimizing the company’s operational and financial performance.”

Krone, who has worked in the defense contracting world for more than 30 years, held leadership positions at General Dynamics and McDonnell Douglas before its merger with Boeing. As treasurer at McDonnell, he oversaw the company’s financial transition during the merger.

“I’m honored to have been selected to lead Leidos and am fully prepared to tackle the challenges facing our industry,” Krone said in a statement.

At Leidos’s last earnings call in June, executives hinted that the hunt for a new leader was almost over. The company has undergone several upheavals in its search for a new chief executive, as two promising candidates departed this year, following disappointing earnings reports.

Profits and revenue at Leidos fell in the last quarter, but by a smaller percentage than the previous one. The contracting firm continues to struggle with the effects of a slowdown in federal spending.

Leidos is the re-branded company created by the division of Science Applications International Corp. into Leidos and McLean-based spinoff SAIC.

Jumper took over the company in 2012 and oversaw the split.