Sean Mullen serves as the Chief Growth Officer at Amentum Holdings Inc., a leading global engineering and technical solutions provider. In his role, Mullen is responsible for driving the company's strategic growth initiatives, overseeing business development, and fostering key client relationships. His leadership has been instrumental in expanding Amentum's market presence and securing new contracts across various sectors, including defense, intelligence, and critical infrastructure. Prior to joining Amentum, Mullen held several high-level positions in the aerospace and defense industry. He spent over a decade at Leidos, where he served as Senior Vice President of Business Development, leading the company's growth strategy in the federal sector. During his tenure, Mullen played a key role in securing significant contracts with the U.S. Department of Defense and other government agencies, contributing to Leidos' revenue growth and market expansion. Before Leidos, he held various leadership positions at Northrop Grumman, where he honed his skills in business development and strategic planning. Mullen's extensive experience and proven track record in driving growth make him a valuable asset to Amentum. Under his guidance, the company has successfully navigated the competitive landscape, positioning itself as a trusted partner for clients seeking innovative solutions to complex challenges. His strategic vision and dedication to excellence continue to propel Amentum forward, ensuring the company's long-term success and industry leadership.