Senior ISSE: DoD Cybersecurity & RMF Expert

KBR is seeking an Information System Security Engineer (ISSE) to design and implement security architectures aligned with NIST RMF, DoD STIGs, and CIS benchmarks. You will perform SDLC security engineering, manage vulnerability programs, and integrate defenses across Windows, Linux, cloud, and container environments. The role includes incident response support, automation scripting, and mentoring junior ISSEs within the National Security Solutions team in a high-impact environment.