Posted 1mo ago

Information Systems Security Officer (ISSO)

@ GCyber
Arlington, Virginia, United States
OnsiteFull Time
Responsibilities:Ensuring compliance, Implementing security, Managing incidents
Requirements Summary:Active DoD Top Secret/SCI clearance; BS in engineering or CS; DoD 8570 IAT II cert; 8-10 yrs DoD/IC RMF; 5+ yrs ATO/eMass; 4+ yrs ISSO; travel to NSGB; Arlington, VA.
Technical Tools Mentioned:RMF, eMASS, STIG, ICD503
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Job Description
GCyber is seeking an Information Systems Security Officer, to support a high profile DISA customer. You will be responsible to ensure cyber security controls are created, implemented, followed, and successfully assessed within the RMF to include successful completion and management of the Authority to Operate (ATO).

This position is located in the NCR, but there is a travel requirement to Naval Station Guantanamo Bay, Cuba, (NSGB) occasionally.

As the Information Systems Security Officer, you will:
  • Ensure Cybersecurity Compliance & Authorization – Ensure all OMC information systems comply with DoD Instruction 8500.01 cybersecurity requirements, facilitate ATO compliance and re-accreditations (IAW DoD 8510.01 and ICD503), and manage system registration in eMASS, including RMF activities.
  • Security Operations & Maintenance – Implement and maintain security measures, antivirus/malware protection, security patch distribution, vulnerability scanning, and compliance with STIG requirements.
  • Incident Management & Readiness Support – Provide onsite incident management, support scheduled CCRIs and SAVs, and ensure continuous cybersecurity readiness for NIPRNET, SIPRNET, JWICS, and SAP systems.
  • Customer Support & Continuous Improvement – Coordinate with IT teams for security tasks, resolve customer issues or escalate as needed, facilitate policy waiver submissions, and provide surge support when required.
Minimum Qualifications and Experience:
  • Active DoD Top Secret/SCI security clearance
  • Bachelor’s Degree in engineering, Computer Science or related field
  • DoD 8570 IAT II certification (e.g., Security+, CND, CCNA-Security, CySA+, GICSP, GSEC, SSCP)
  • 8-10 years (with Bachelor’s) or 6-8 years (with Master’s) of professional experience supporting DoD or IC RMF activities.
  • 5+ years of experience with ATOs and eMass. (XACTA preferred)
  • 4+ years of experience as an ISSO with tasks of a similar size/scope