MD-Aberden Proving Ground, Cyber Security Engineer Aberdeen Proving Ground MUST: Active Secret Clearance required Experienced 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 Required 4+ years experience in a cyber security role including at least a year of experience with ACAS, HBSS, and RMF Hands-on experi