Information Systems Security Engineer (ISSE) Active Clearance Required

Information Systems Security Engineer (ISSE)

Location: Columbia, MD
Schedule: Hybrid; typically 1–2 onsite days weekly
Clearance: Active Secret clearance and U.S. citizenship required

Position Overview

Phoenix Ops Group seeks an ISSE to secure complex networks, distributed architectures, and cloud systems supporting big data applications across enclaves with differing classification requirements.

Responsibilities

• Develop and review authorization documentation supporting federal and DoD requirements.
• Execute Risk Management Framework (RMF) activities, security assessments, and risk mitigation.
• Apply DISA STIGs/SRGs and NIST SP 800-53 controls.
• Evaluate open-source, government, and commercial software risks.
• Analyze vulnerability scans and coordinate remediation.
• Maintain authorization artifacts and Plans of Action and Milestones (POA&Ms).
• Guide engineering teams on secure designs and trusted external connections.