Senior Information System Security Officer; ISSO

Type of

Requisition :
Regular Clearance Level Must Currently Possess:
Top Secret Clearance Level Must Be Able to Obtain:
Top Secret/SCI Public Trust/Other

Required:

None Job Family:
Cyber and IT Risk Management

Job Qualifications:

Skills:

Information Systems, Information System Security, Plan of Action and Milestones (POA&M)

Certifications:

None

Experience:

5 + years of related experience US Citizenship

Required:

Yes

Job Description:

General Dynamics Information Technology (GDIT) seeks a highly motivated and experienced Information System Security Officer (ISSO) supporting the Defense Threat Reduction Agency (DTRA). You will be the designated cybersecurity professional responsible for the Defense Stockpile Management Systems (DSMS) which includes:
Defense Integration and Management of Nuclear Data Services (DIAMONDS), Joint Application Design Environment (JADE), Nuclear Inventory Management and Cataloging System (NIMACS). The ISSO ensures all systems comply with the NIST Risk Management Framework (RMF), DoD directives, and agency-specific security mandates.

• Performs Cybersecurity activities for a large Program; coordinates with government Program staff, DTRA, and other government agencies to assist in the creation, dissemination, direction, and auditing of program policy, standards, and operating procedures.
• Support the government ISSMs in the development and staffing of documentation related to the Authorization to Operate (ATO), Authorization to Connect (ATC), Interim Authorization to Test (IATT), Plans of Action & Milestones (POA&Ms), etc.
• Assist in the development and execution of any required Security Test and Evaluation (ST&E) plans.
• Provide USG with a review of architecture documentation, security impact analysis, and risk mitigation/acceptance to support RMF for DoW IT authorization.
• Provide security design management control of build processes for servers, services, and end points.
• Ensure good cybersecurity and vulnerability management practices are developed, implemented, and enforced.
• Conduct network and system audits for vulnerabilities using Security Technical Implementation Guides (STIGs), DISA SCAP, ACAS vulnerability scanner, ESS Policy Auditor to mitigate those findings for Linux, Windows, Cisco, Juniper, VMWare and other associated operating systems and technologies.
• Implement the Continuous Monitoring program by creating, tracking, reviewing, and closing Plan of Action and Milestones (POA&Ms) and Risk Acceptances and assist in conducting solution identification to assist in problem remediation and resolution.
• Communicate tactical and strategic threat information to Government leaders, Cybersecurity‑Ops and Security Staff to assist them in making cyber risk decisions and to mitigate threats.
• Carries out DoW Risk Management Framework (RMF) in accordance with DoW 8510 to ascertain information systems' security posture by utilizing security control validation activities and coordinating security testing.
• Coordinates with DTRA and other organizations in support of audits and inspections and provides all necessary documentation as required for SAVs, ST&Es, and CCRI.
• Evaluate change requests (firewall, systems, networks) and assess organizational risk.
• Ensures the integrity and protection of networks, systems, and applications by technical enforcement of organizational security policies, through monitoring of vulnerability scanning devices.
• Provides guidance and work leadership to less‑experienced technical staff members.
• Maintains current knowledge of relevant technology as assigned.
• Process tickets in support of the program using the accepted ITSM system.

• BA/BS or the equivalent combination of education, technical training, or work/military experience.
• 5+ years…