Joel Duling will resign as president of BWT Technology’s mainstay Nuclear Operations Group effective July 29, the company wrote in a regulatory filing dated Monday.

Duling informed the company of his decision on July 12, according to the 8-K filing with the Securities & Exchange Commission. 

“Joel Duling is retiring from BWXT to pursue other interests, and we wish him well going forward,” a BWX Technologies (BWXT) spokesperson wrote Wednesday in an email. “We will announce his successor at a later date.”

Duling has been president of the Lynchburg, Va.-based Nuclear Operations Group, which handles the company’s bread-and-butter naval reactors work for nuclear warships and submarines, since June 2018, according to his LinkedIn profile. He previously spent four years as president of BWX Technologies’ (BWXT) Nuclear Fuel Services subsidiary, which manufactures uranium fuel for the U.S. nuclear Navy.

Prior to his career at BWXT’s big naval-business subsidiaries, Duling worked at the Y-12 National Security Complex in Oak Ridge, Tenn., when another BWXT subsidiary managed the property, and at the Idaho National Laboratory.

As a condition of leaving the company, Duling signed a one-year non-compete with BWXT that runs through July 18, 2023, according to the 8-K filing. Duling was 59 years old when BWXT in March filed its most recent proxy statement.