DoD ISSO | Cybersecurity Lead (Top Secret)

APOGEE RESEARCH LLC; Arlington (VA); On-site; USD 114,000 - 171,000; Full time

Benefits offered by this job

Health, dental, vision insurance

Paid vacation

Sick leave

Paid holidays

Transit/parking support

Job summary

Apogee Research LLC in Arlington, VA is seeking an experienced Information System Security Officer (ISSO) to support DoD-level systems. The role is full-time and in-person, requiring an active DoD Top Secret clearance with SCI eligibility and a strong background in RMF, SSPs, and security controls.

You will oversee security policies, assess risk, audit logs, conduct training, coordinate with ISSM, CPSO/FSO, and program managers, and help maintain an approved security posture across classified

Qualifications

• 3-5 years as an ISSO/ISSE in DoD/Intelligence environment.
• Must hold DoD 8140/8570 baseline certification (e.g., Security+, CySA+, etc.).
• Experience auditing information systems.
• Familiarity with RMF, NIST SP 800-53/171 and related policies.
• Self-starter, multi-tasking under deadlines.
• Excellent written and oral communication; team oriented.

Responsibilities

• Ensure security policies/procedures for systems and data per DoD regs.
• Maintain SSPs, SCTMs, RMF artifacts and authorization packages.
• Support assessments of classified and Controlled Unclassified Information networks.
• Troubleshoot accounts, backups, file transfers, and security configurations.
• Identify vulnerabilities and implement countermeasures for secure resources.
• Coordinate RMF artifacts with PMs, ISSM, CPSO/FSO, and Government customers.
• Develop and maintain RMF Plan of Action and Milestones (POA&M).
• Review audit logs for anomalies and threats; conduct security training.

Skills

ISSO/ISSE experience

DoD RMF/NIST knowledge

Audit information systems

Certification/authorization knowledge

Strong communication

Education

DoD 8140/8570 baseline cert (Security+/CySA+, etc.)

Tools

Red Hat/STIGs experience

Windows Server

Job description

Apogee Research LLC in Arlington, VA is seeking an experienced Information System Security Officer (ISSO) to support DoD-level systems. The role is full-time and in-person, requiring an active DoD Top Secret clearance with SCI eligibility and a strong background in RMF, SSPs, and security controls.

You will oversee security policies, assess risk, audit logs, conduct training, coordinate with ISSM, CPSO/FSO, and program managers, and help maintain an approved security posture across classified