Northrop Grumman Corporation announced that its board of directors has elected Roshan Roeder president, Defense Systems sector, effective October 17, 2022. Roeder will succeed Mary Petryszyn, who has announced her intent to retire effective January 13, 2023. Petryszyn will continue as corporate vice president, reporting to Warden to support this transition until her retirement.

Roeder is currently vice president and general manager of the Airborne Multifunction Sensors Division in the Mission Systems sector, which delivers large-scale, mission-critical C4ISR systems and complex hardware and software products for airborne platforms. In her 20-plus-year career with Northrop Grumman, she has led many different businesses for the company. She holds a bachelor's degree in computer engineering from Virginia Tech.