Senior Cybersecurity Network Defense Administrator (Information Assurance Engineer - Senior)

Company: CGI
Location: Radford
Posted on: April 1, 2026

Job Description:

Position Description: CGI Federal is looking for a Senior Cybersecurity Network Defense Administrator (Information Assurance Engineer - Senior) to help support a program we are working on for the Army's PL ALTESS contract. PL ALTESS, or Product Lead for Acquisition, Logistics, and Technology Enterprise Systems and Services, is a key U.S. Army organization providing IT services and support to the Army and Department of Defense. As a managed service provider, ALTESS delivers infrastructure, platform, and application services across data centers and commercial clouds. It plays a crucial role in modernizing IT systems by migrating them to the cloud and managing mission-critical applications to ensure Army readiness. ALTESS oversees IT service delivery across various hosting locations, aligning with Department of Defense digital transformation strategies as part of PEO Enterprise. This position is located in USA VA Radford USAVARAD1. Your future duties and responsibilities: The Senior Cybersecurity Network Defense Administrator (Information Assurance Engineer - Senior) will be responsible for performing a variety of network defense activities in accordance with established guidelines and best practices. The role includes managing ACAS infrastructure, configuration, scanning, reporting, and analysis activities in accordance with the DISA ACAS Best Practices Guide. The administrator will also manage Army Endpoint Security Solution (AESS) Site Reviewer activities, DISA Whitelist, and PKI Tokens. Additionally, the role involves performing STIG Compliance scanning and reporting, providing Ports, Protocols, & Services Management (PPSM) support, and reviewing proposed configuration changes for security impact. The administrator will handle in-processing and out-processing tasks, manage updates to the designated training and certification tracking system, and participate in SW Assurance reviews to ensure ACAS findings are remediated or appropriately documented via eMASS POA&M. Required qualifications to be successful in this role: a) Cybersecurity Certification (such as Security/CISSP/etc.) b) Active DoD Secret Security Clearance. c) 10 or more years' experience with Cybersecurity and Network Defense related areas d) Experience with ACAS management, including infrastructure management, configuration, scanning, reporting, and analysis. e) Proficiency in managing Army Endpoint Security Solution (AESS) Site Reviewer activities. f) Experience with DISA Whitelist management. g) Knowledge of PKI Token management. h) Strong understanding of DoD STIGs and ability to perform STIG Compliance scanning and reporting. i) Experience providing Ports, Protocols, & Services Management (PPSM) support. j) Ability to review proposed configuration changes for security impact. k) Experience with in-processing and out-processing tasks related to account management functions. Desired qualifications/non-essential skills required: a) Bachelor's degree in computer science or equivalent years of experience. b) Familiarity with DISA ACAS Best Practices Guide and NETCOM policies. c) Familiarity with DISA Continuous Monitoring and Risk Scoring (CMRS). d) Strong analytical and problem-solving skills. e) Excellent communication and coordination skills. f) Experience with Army enterprise monitoring tools and practices. g) Knowledge of security regulations and best industry practices. h) Ability to work effectively in a team environment and collaborate with various i) Stakeholders. j) Experience with incident response activities. k) Understanding of Continuity of Operations Plans and Communication Plans. l) Experience with security compliance and control documentation. 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 $127,500.00 - $251,100.00. 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 CGIFederalJob ClearanceJobs LI-PC1 Skills: Client Management Communications Management Cyb.Sec.Eng. (Sensor /Device) Cyber Public Key Infrastructure What you can expect from us: Together, as owners, let’s turn meaningful insights into action. 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 US_Employment_Compliance@cgi.com . 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. We make it easy to translate military experience and skills! Click here to be directed to our site that is dedicated to veterans and transitioning service members. 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.

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