Information Systems Security Officer

MANTECH seeks a motivated, career and customer-oriented INFORMATION SYSTEMS SECURITY OFFICER to join our team in STAFFORD, VA.

Responsibilities include but are not limited to:

• Assist the Department of War and USMC with the development and execution of assessment and authorization (A&A) efforts.

• Prepare, review, and update authorization packages (IATT/ATO) to maintain the security posture of mission-critical systems.

• Manage and track Plans of Action and Milestones (POA&Ms) within ISSO responsibility to ensure timely remediation of findings from audits.

• Conduct continuous monitoring activities for authorization boundaries and notify the ISSM of changes affecting the system’s authorization.

• Coordinate hardware, software, and firmware modifications with the ISSM and AO/DAO prior to implementation.

• Monitor system recovery processes to ensure security features are properly restored and audit records are accurately collected and reviewed.

Minimum Qualifications:

• Bachelor’s degree in Cybersecurity, Information Assurance, or a related field with 5+ years of progressively responsible experience in information systems security. A total of 10 years’ experience without a degree.

• Proven experience accrediting IT systems against U.S. Government standards such as NIST SP 800-53, CNSSI 1253, and DISA STIGs.

• Hands-on experience supporting system accreditation and authorization tasks using eMASS.

• Possess active foundational cybersecurity certifications such as CompTIA Security+ or CySA+.

• Demonstrated ability to perform ISSO duties including the execution of cybersecurity self-inspections and the review of system assessment plans.

Preferred Qualifications:

• Possess advanced technical certifications such as CompTIA PenTest+ or Cisco Certified Network Associate (CCNA).

• Experience managing secure network infrastructures and enterprise firewall policies in DoD environments.

• Self-starter with excellent people skills who can collaborate across teams to drive organization-wide security improvements.

Clearance Requirements:

• Must have a current active SECRET security clearance with the ability to obtain and maintain a TS/SCI with SAP clearance eligibility.

Physical Requirements:

• Must be able and willing to perform occasional manual labor and warehouse duties, with the ability to lift up to 50 pounds. Must be able to remain in a stationary position 50% of the time.