Information System Security Officer (ISSO)

Job Title: Information System Security Officer (ISSO)Job Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: NoneEmployee Type: RegularPercentage of Travel Required: NoneType of Travel: None* * * The Opportunity: CACI is searching for an Information System Security Officer (ISSO) to support the DHS Headquarters. As an Information System Security Officer, you will play a crucial role in ensuring the security and compliance of DHS HQ's information systems. You will work in a dynamic environment, collaborating with IT system owners, stakeholders, and cybersecurity professionals to implement and maintain robust security controls. Your efforts will directly contribute to safeguarding DHS's mission-critical systems and data. The ISSO will serve as the single point of contact on all systems security matters, leading cybersecurity engineering efforts for assigned Program Management Organizations with direct support to the Compliance Branch Lead. This includes spearheading systems' ATO efforts and maintaining a security posture in compliance with FISMA, DHS 4300 Series, NIST, and DHS and Component Directives. The ISSO will execute complete Risk Management Framework (RMF) activities for Authority to Operate (ATO) decisions and ensure all security documentation is kept up to date. Responsibilities: The ISSO will execute complete Risk Management Framework (RMF) activities for Authority to Operate (ATO) decisions including system categorization, security control selection and implementation, self-assessments, POA&M development, and continuous monitoring. This position requires developing and maintaining System Security Plans (SSPs) including control baselines, inheritance, Business Impact Analyses, implementation statements, technical and system descriptions, and hardware and software inventories. The ISSO will create and maintain Configuration Management Plans, conduct Security Impact Analyses, approve Change Requests, and document the security impact of configuration changes. Responsibilities include developing and testing Contingency Plans and Incident Response Plans to ensure business continuity, as well as conducting annual risk assessments, supporting security assessments, and vulnerability assessments across assigned systems. The position involves advising system owners and senior executives on all cybersecurity matters and developing remediation work plans for assessment and/or audit findings. The ISSO will maintain...

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