MD-Aberdeen Proving Ground, Senior Cyber Security Engineer Aberdeen Proving Ground MUST: Active Secret required Experienced Senior Cyber Security Engineer Must hold at least one of the following certifications in compliance with DoD 8570 requirements for IAM Level II: CAP, CASP CE, CISM, or CISSP 6+ years experience in a cyber security role required Experience with HBSS required Hands-on experience and training on the verifi