This onsite Information Security Officer role serves as the senior security leader for a global aerospace and defense technology partner, primarily based in Philadelphia with travel to Tustin and Beavercreek. The position combines cybersecurity leadership with hands-on IT support, requiring the candidate to manage compliance with NIST, CMMC, and DFARS standards while overseeing system authorizations and risk management. Key duties include leading Authorization to Operate activities, acting as the on-site incident commander, and providing direct technical support for desktops, servers, and shop-floor equipment. The role appeals to professionals seeking a direct-hire opportunity to influence security culture within a critical defense industry environment, offering a chance to bridge the gap between strategic security governance and practical infrastructure operations.