Information System Security Engineer (ISSE)

ARS is seeking a highly qualified Information System Security Engineer (ISSE) with strong expertise in Cybersecurity, Cloud Security (Azure), and Systems Engineering. You will help design, secure, and sustain cutting‑edge secure enclave environments at the tactical edge, supporting enterprise services and cyber defense operations across the DoD. The team will provide engineering expertise using technologies such as ePO, Splunk, ACAS, STIG/SCAP, Azure Automation, Defender for Cloud, Sentinel, and other enterprise cyber capabilities. The ISSE will perform technical security assessments, design security architectures, guide RMF documentation, and ensure secure operations in accordance with DoD and national cybersecurity requirements.