The Leidos Digital Modernization Sector is seeking a highly qualified and trained Cybersecurity Engineering Subject Matter Expert (SME) to provide expert guidance and direction underpinning Leidos on-site support to research and development activities on Aberdeen Proving Grounds, Maryland. The Cybersecurity Engineer SME will provide technical leadership to multiple project teams of cybersecurity professionals on the Leidos on-site support team. This role involves providing expert cybersecurity, risk assessment, and information assurance support to a variety of engineering projects, including research & development, prototyping, integration, test and evaluation, cross domain solutions, networking, and software development.