Senior Information Systems Security Officer; Sr. ISSO; TS/SCI Poly
Listed on 2026-09-09
-
IT/Tech
Cybersecurity, Information Security & Data Protection, Security Management & Operations
Senior Information Systems Security Officer (Sr. ISSO) - TS/SCI with Poly required
- Annapolis Junction, MD
Senior Information Systems Security Officer (Sr. ISSO)
We are seeking an experienced
Senior Information Systems Security Officer (Sr. ISSO) to support a high-priority
Intelligence Community (IC)/Department of Defense (DoD) customer in the Fort Meade, Maryland area. The Sr. ISSO will be responsible for supporting the security posture of assigned information systems throughout the system lifecycle and ensuring compliance with applicable DoD, IC, and customer security requirements.
The ideal candidate will have a strong background in
RMF, security documentation, authorization activities, continuous monitoring, and security compliance
, along with the ability to work independently with technical teams and government stakeholders.
- Bachelor of Science degree in Computer Science, Information Assurance, Information Security, Cybersecurity, or a related discipline.
- DoD 8570/8140 compliance with
IAM Level II or IAT Level III
, such as CISSP/Associate, CASP+/SecurityX, or another applicable DoD-approved certification. - 7+ years of ISSO experience supporting IC or DoD programs of similar scope and complexity.
- Experience with
Risk Management Framework (RMF) and the security authorization lifecycle. - Experience developing, maintaining, and updating
System Security Plans (SSPs) and related RMF documentation. - Experience with security controls, POA&Ms, vulnerability remediation, continuous monitoring, assessments, and ATO support.
- Strong communication skills and the ability to work with system owners, engineers, administrators, security personnel, and government stakeholders.
- Previous experience supporting a
Fort Meade, MD three‑letter Intelligence Community customer
. - Experience with
STE/STN (Secure the Enterprise/Secure the Network). - Experience with
Latte Art, Biscotti, and Xacata
. - Experience managing multiple SSPs and security authorization packages.
- Active TS/SCI clearance required.
- Ability to obtain and maintain required customer access.
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