Senior Cyber Security / Information System Security Officer (ISS

CGI Federal is seeking a Senior Cyber Security / Information System Security Officer (ISSO) to provide advanced security oversight, compliance monitoring, and protection of mission-critical systems within a major federal modernization program. The Senior ISSO ensures all systems, applications, data flows, and development environments adhere to federal security policies, controls, accreditation requirements, and continuous monitoring standards. This role partners with engineering, cloud, DevSecOps, QA, and operations teams to ensure security is embedded across all phases of delivery.

Your future duties and responsibilities:

Security Governance & Compliance

• Implement and enforce federal security policies, controls, standards, and procedures

• Maintain security documentation including SSPs, POA&Ms, security checklists, and control evidence

• Support continuous monitoring activities, vulnerability scanning, and remediation tracking

• Ensure systems, applications, and cloud environments remain compliant with applicable frameworks

System Security Oversight

• Guide teams on secure architectures, data-handling requirements, and system hardening

• Validate security controls across development, testing, migration, and operational environments

• Monitor audit logs, access controls, authentication mechanisms, and system configurations

• Support accreditation processes, assessments, and readiness activities

Collaboration & Advisory Support

• Work closely with engineers, cloud teams, DevSecOps, QA automation, data migration, and product leads

• Provide security requirements, design guidance, and risk advisories during planning and development

• Participate in sprint ceremonies, technical reviews, and release readiness cycles

• Communicate risks, incidents, and mitigation strategies to leadership

Risk Management & Incident Support

• Identify security risks and coordinate mitigation strategies across teams

• Support incident response activities, root-cause analysis, and corrective action tracking

• Lead remediation efforts for findings from scans, audits, or assessments

Documentation & Reporting

• Maintain accurate and current security documentation for audits, accreditation, and compliance

• Generate reports summarizing vulnerabilities, remediation status, and security posture

• Support program leadership with security metrics, dashboards, and risk summaries

• Must have an Active Top Secret Security Clearance

• U.S. Citizenship

• Bachelor’s degree and 8+ years of experience in cybersecurity, ISSO support, or security engineering

• Strong understanding of federal security frameworks and compliance requirements

• Experience performing vulnerability scanning, interpreting findings, and driving remediation

• Proficiency with identity/access management, system hardening, logging, and auditing

• Strong communication skills for partnering with technical teams and leadership

Preferred Qualifications

• Experience supporting federal modernization or national-security programs

• Familiarity with cloud environments (AWS strongly preferred)

• Experience with DevSecOps practices, CI/CD pipeline security, and automated scanning

• Security certifications such as CISSP, CISM, Security+, or similar

Due to the nature of this government contract, US Citizenship is required.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

Come join our team-one of the largest IT and business consulting services firms in the world.