Information System Security Officer

improvement efforts. Your work will enhance operational resilience and enable the customer to execute their mission with confidence. Conduct security audits and RMF control assessments by applying your deep understanding gained through previous ISSO/ISSM responsibilities. Review, validate, and enhance security artifacts such as SSPs, POA&Ms, and continuous monitoring deliverables. Evaluate system security controls fore effectiveness, sufficiency, and alignment with NIST 800-53, DoW requirements, and organizational policies. Work with ISSOs/ISSMs and technical teams to interpret findings, recommend remediation actions, and ensure timely closure of vulnerabilities. Analyze system changes, configuration updates, and vulnerability outputs to determine authorization impacts and risk-level adjustments. Support ATO maintenance by tracking assessments, evidence, and documentation needed for successful RMF lifecycle execution. Ability to prepare and deliver clear, risk focused briefings to system

owners and stakeholders regarding audit findings and compliance status. WHAT YOULL NEED TO SUCCEEDBring your cyber expertise and drive for innovation to GDIT. The ISSO must have: Education: Bachelors degree or 4+ years of additional work experience/training/education in lieu of a degree Experience: 3+ years of related experience as a prior ISSO/ISSM Certifications: IAT II (Security +, SSCP, CCNA Security) Technical skills: Strong understanding of NIST SP 800-53, DoW cybersecurity requirements, and control implementation/assessment practices. Familiarity with Windows/Linux environments, vulnerability tools, and security baselines. Security clearance: Must have an active Secret clearance in order to be considered US citizenship required Role requirements: Onsite in Falls Church, VA and possibly other local offices, 5 days/weekThis is a temporary at-will position with an expected end date of Sept 2027 GDIT IS YOUR PLACEAt GDIT, the mission is our purpose, and our people are at the center of everything we do. Growth: AI-powered career tool that identifies career steps and learning opportunities. Support: An internal mobility team focused on helping you achieve your career goals. Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off. Community: Award-winning culture of innovation and a military-friendly workplace.OWN YOUR OPPORTUNITYExplore a career in cyber at GDIT and youll find endless opportunities to grow alongside colleagues who share your focus on defending and protecting what matters.#GDITPriority