Information Systems Security Officer

  • System Soft Technologies
  • Oakton, Virginia
  • 10/25/2026
Full time Information Technology Telecommunications

Job Description

Job Description

Responsibilities:

  • Provide oversight of assigned networks to ensure compliance with Security Technical Implementation Guides (STIGs) and Information Assurance Vulnerability Management (IAVM) requirements.
  • Support and lead RMF Assessment and Authorization (A&A) activities to obtain and maintain system ATOs under federal security requirements.
  • Collaborate with ISSMs, Information System Owners, Security Control Assessors, Authorizing Officials, and engineering teams to maintain system security.
  • Develop, review, and maintain Plans of Action and Milestones (POA&Ms), track deficiencies, and coordinate vulnerability remediation.
  • Perform daily, weekly, monthly, and quarterly Continuous Monitoring (ConMon) reviews, primarily using Splunk.
  • Assist with incident response activities and verify required system sanitization procedures.
  • Identify critical and high-risk vulnerabilities and report network security posture to CISO and Authorizing Official stakeholders.
  • Create and maintain security documentation, policies, procedures, and compliance reports.
  • Support security assessments, risk analysis, patch validation, and continuous improvement initiatives.


Required Qualifications:

  • Bachelor's degree in a related field, or an Associate's degree with 2+ years of relevant experience, or 4+ years of relevant experience.
  • IAT Level II certification minimum.
  • DoD Top Secret Security Clearance is mandatory.
  • Hands-on experience with RMF, ATO, federal cybersecurity, and information assurance compliance.
  • Strong knowledge of NIST SP 800-37, 800-53 (Revision 4/5), 800-137, 800-39, 800-171, and related security standards.
  • Experience preparing and maintaining ATO packages using eMASS and/or Xacta.
  • Experience with System Security Plans (SSPs), POA&Ms, Contingency Plans, Disaster Recovery Plans, and Incident Response documentation.
  • Knowledge of vulnerability assessment tools such as ACAS, Tenable Nessus, Security Center, or Nmap.
  • Experience with STIG compliance, vulnerability remediation, security control assessments, risk analysis, and compliance reporting.
  • Familiarity with Splunk and continuous monitoring.