Senior Cyber Security / Information System Security Officer (ISSO)

Senior Cyber Security / Information System Security Officer (ISSO)

Position Description
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.
This position is located in Huntsville, AL.

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

Required qualifications to be successful in this role
· 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
Desired qualifications/non essential skills required:
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.
CGI is required by law in some jurisdictions to include a reasonable estimate of the compensation range for this role. The determination of this range includes various factors not limited to skill set, level, experience, relevant training, and licensure and certifications. To support the ability to reward for merit based performance, CGI typically does not hire individuals at or near the top of the range for their role. Compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range for this role in the U.S. is $79,600.00 $176,300.00.
CGI Federal's benefits are offered to eligible professionals on their first day of employment to include:
. Competitive compensation
. Comprehensive insurance options
. Matching contributions through the 401(k) plan and the share purchase plan
. Paid time off for vacation, holidays, and sick time
. Paid parental leave
. Learning opportunities and tuition assistance
. Wellness and Well being programs
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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.

Qualified applicants will receive consideration for employment without regard to their race, ethnicity, ancestry, color, sex, religion, creed, age, national origin, citizenship status, disability, pregnancy, medical condition, military and veteran status, marital status, sexual orientation or perceived sexual orientation, gender, gender identity, and gender expression, familial status or responsibilities, reproductive health decisions, political affiliation, genetic information, height, weight, or any other legally protected status or characteristics to the extent required by applicable federal, state, and/or local laws where we do business.

CGI provides reasonable accommodations to qualified individuals with disabilities. If you need an accommodation to apply for a job in the U.S., please email the CGI U.S. Employment Compliance mailbox at View email address on us.fitly.work . You will need to reference the Position ID of the position in which you are interested. Your message will be routed to the appropriate recruiter who will assist you. Please note, this email address is only to be used for those individuals who need an accommodation to apply for a job. Emails for any other reason or those that do not include a Position ID will not be returned.

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All CGI offers of employment in the U.S. are contingent upon the ability to successfully complete a background investigation. Background investigation components can vary dependent upon specific assignment and/or level of US government security clearance held. Dependent upon role and/or federal government security clearance requirements, and in accordance with applicable laws, some background investigations may include a credit check. CGI will consider for employment qualified applicants with arrests and conviction records in accordance with all local regulations and ordinances.

CGI will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with CGI’s legal duty to furnish information.