Executive Leadership
Sean Mullen

Sean Mullen

Chief Growth Officer

Sean Mullen serves as the Chief Growth Officer at Amentum. He is responsible for leading the company’s business development and growth strategy, including leveraging our world class capabilities and deep customer insight to drive differentiated solutions that support our customer’s mission objectives.

Sean has over three decades of experience in business development and capture. He began his career as a civilian acquisition officer, helping the Air Force enhance its mission effectiveness through the acquisition and deployment of key engineering and information technology (IT) capabilities. He also served as SVP of BD for Perspecta, where he designed and implemented the company’s go-to-market strategy and helped enact a new, resource-efficient and customer-focused BD lifecycle. Immediately prior to joining Amentum, he led ECS’s business development operations, focusing on growing the business through new market penetration and partnership opportunities.

Outside the office, Sean enjoys golfing, traveling, and supporting Boston sports teams. He has a bachelor’s degree in management from Merrimack College and a Master of Business Administration from University of Massachusetts Lowell.

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