Information Systems Security Engineer – SETA Security Clearance

Position: Information Systems Security Engineer – SETA Support with Security Clearance
Job Title:

Information Systems Security Engineer (ISSE) – SETA Support

Location:

Chantilly, VA
Clearance Requirement:
Active TS/SCI clearance with CI polygraph

Job Summary:

Tri Sept Corporation is seeking an experienced Information Systems Security Engineer to provide Systems Engineering and Technical Assistance (SETA) support for a multi-platform information systems environment. The role focuses on continuous monitoring, compliance tracking, risk management, and advisory support to leadership in a dynamic, high-visibility government setting. The successful candidate will maintain situational awareness across multiple platform assets, ensure adherence to Risk Management Framework (RMF) processes, and serve as a key point of contact for security-related inquiries and decision-making.

This position requires strong attention to detail, proactive monitoring, and the ability to communicate complex security information effectively to senior leadership.

Key Responsibilities
• Conduct daily reviews of the Service Now (SNOW) dashboard to monitor platform assets, including tracking Plans of Action and Milestones (POA&Ms) for increases, new automated entries, expired items, DISA scores, compliance scan percentages, and other overnight/weekend changes.
• Monitor and maintain awareness of the IA Kanban board and JIRA tickets assigned to the engineering team (TO2 queue) to track task status, prepare updates for leadership, and provide timely information on potential security impacts that may require elevation to security critical review with senior leadership.
• Review and analyze the ISO Approval queue in Service Now; provide detailed briefings to the Information System Owner (ISO)/leadership on pending items (e.g., PCRs), including affected assets, PCR numbers, and explanations of purpose, to facilitate informed approval decisions.
• Maintain comprehensive situational awareness of all platform systems to enable rapid responses to leadership questions regarding changes, risks, or concerns.
• Perform weekly reviews of Security Center reports across task orders/tenants to assess patching status, identify critical/high findings from Nessus scans, and coordinate updates/briefings to leadership on remediation timelines.
• Demonstrate strong proficiency in Security Center accounts and tools to interpret and act on reported data effectively.
• Actively monitor and respond to data spills; collaborate regularly with IA leads throughout the day to address unpredictable security events and maintain accurate reporting.
• Conduct daily reviews of Continuous Monitoring (Con Mon) controls for each asset to ensure compliance with weekly, monthly, quarterly, and annual control requirements.
• Participate in recurring security meetings, including high-volume sessions, with in-person attendance typically expected at designated facilities.
• Support overall SETA functions by providing expert technical advice, risk analysis, and engineering support to maintain system security posture and compliance.

Required Qualifications
• Bachelor's degree in Cybersecurity, Information Systems, Computer Science, or a related field (or equivalent experience).
• 5+ years of experience in information systems security engineering, continuous monitoring, or related IA roles, preferably in a government/contractor environment.
• Strong working knowledge of RMF processes, POA&M management, security control assessment, and compliance reporting.
• Proficiency with tools such as Service Now (SNOW) dashboards, Security Center, Nessus, JIRA, and Kanban boards for tracking and reporting.
• Excellent analytical and communication skills, with the ability to explain technical security details to non-technical leadership.
• Experience supporting multi-system/platform environments and handling dynamic, unpredictable security incidents.
• Ability to work proactively in a fast-paced environment with daily/weekly deadlines and in-person meeting requirements.

Preferred Qualifications
• Experience providing SETA support in intelligence community (IC) or DoD environments.
• Familiarity with DISA standards, compliance scanning, and patching processes.
• Knowledge of…