Information System Security Officer (ISSO)

  • Suitland, MD
  • Posted 5 hours ago | Updated 5 hours ago

Overview

On Site
Depends on Experience
Contract - Independent
Contract - W2
Contract - 12 Month(s)
100% Travel

Skills

Auditing
Authorization
Cisco Certifications
Cyber Security
DoD
Documentation
Incident Management
Information Assurance
Information System Security
Information Technology
Management
NIST SP 800 Series
Nessus
RMF
Regulatory Compliance
Reporting
Risk Management Framework
Security Clearance
Security+
System Security
Vulnerability Management
eMASS

Job Details

ASSYST is seeking a qualified Information System Security Officer to provide cybersecurity and information assurance services in Suitland, Maryland.
The Information System Security Officer (ISSO) will provide cybersecurity and information assurance support for intelligence systems operating within a secure federal environment. This role is responsible for maintaining system security posture, supporting compliance activities, and ensuring continuous authorization of mission-critical systems.
This role is contingent upon contract award. Must possess an Active Top Secret /SCI Clearance. Job Location: Suitland, Maryland (Onsite) Responsibilities:

  • Participate in the full lifecycle of the RMF process, from categorization to continuous monitoring
  • Maintain current and complete cybersecurity documentation packages.
  • Conduct vulnerability scans and assessments using automated tools (e.g., SCC, Nessus)
  • Identify and mitigate risks through detailed technical evaluations.
  • Support security audits, inspections, and evaluations.
  • Review logs, alerts, and audit trails for anomalous activity.
  • Ensure systems remain compliant with DoD, DHS, and other federal cybersecurity standards.
  • Coordinate with designated cyber response teams for incident handling and forensic analysis
  • Document findings and support remediation efforts.
  • Support system change reviews and document security impact assessments.
  • Manage Plans of Action and Milestones (POA&Ms) and report on remediation progress.
  • Ensure system Authority to Operate (ATO) remains valid and up to date.

Required Qualifications:

  • Bachelor's degree in Information Technology or equivalent.
  • Hold an active DoD 8570 IAT Level II certification (e.g., CompTIA Security+, CCNA Security, CySA+, or equivalent).
  • Experience with RMF, eMASS, and NIST SP 800-53 controls.
  • Familiarity with SCC, Nessus, ACAS, and other vulnerability management tools.
  • Strong understanding of POA&M lifecycle and ATO sustainment.
  • Ability to synthesize technical findings into actionable security documentation.
  • Demonstrated professionalism in all communications and conduct on government premises.
  • Must possess an Active Top Secret /SCI Clearance.

ASSYST is an Equal Opportunity Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, disability, military status, national origin or any other characteristic protected under federal, state, or applicable local law

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