Senior Information Systems Security Officer (ISSO)

Role Overview

We are hiring a Senior Level ISSO to support mission-critical Modeling, Simulation, and Analysis (MS&A) efforts for a premier defense/government contracting client. This is a permanent, onsite role requiring a high level of expertise in securing classified information systems.

Key Responsibilities

• Maintain system integrity, confidentiality, and availability for classified Information Systems (IS).
• Perform technical security operations: patching, upgrades, backups, and access control management.
• Lead Risk Management Framework (RMF) efforts to sustain system accreditation and Authorization to Operate (ATO).
• Perform vulnerability assessments and analysis; apply STIG best practices across network and software environments.
• Manage documentation (SSP, RAR, SCTM) within systems like eMASS.
• Support security inspections, audits, and log generation.

ABOUT YOU | Qualifications

• Experience: Minimum 12+ years of relevant experience (10 years with a Master’s degree).
• Education: Bachelor’s degree in Computer Science, Cybersecurity, or related technical field.
• Clearance: Active TS/SCI Security Clearance is mandatory.
• Certifications: Must be compliant with DoD 8140.03 (IAM Level II or III, such as CISSP or CASP+).

Knowledge/Skills/Abilities

• Proficiency in ACAS, Nessus, SCAP, and eMASS.
• Strong background in Unix, Windows, or Cisco network administration.
• Familiarity with Intelligence Community (IC) security standards or Special Access Programs (SAP).