Logo
CACi

Senior System Administrator

CACi, Aurora, Illinois, United States, 60505

Save Job

Senior System Administrator Job Category:

Information Technology Time Type:

Full time Minimum Clearance Required to Start:

TS/SCI with Polygraph Employee Type:

Regular Percentage of Travel Required:

Up to 10% Type of Travel:

Outside Continental USA Anticipated Posting End:

8/12/2025 CCI is seeking

Systems Administrators

with Linux Infrastructure experience to manage and maintain mission-critical operational IT systems and mission applications in Aurora, CO. We believe in a healthy home/work balance, and our locations offer a variety of activities to balance with your work life. More About This Role: As the Systems Administrator on this contract, you will be part of an engineering team providing IT Systems Administration support to global real-time operational activities. Critical thinking and troubleshooting skills are essential for resolving operational problems, and clear communication and briefing skills are necessary when interacting with the team, users, and leadership. You must be willing/able to work core hours between 6:00 am to 6:00 pm during the week and participate in an on-call rotation for after-hours support. Responsibilities: Provides Tier III support of IT infrastructure systems and custom mission applications based on a Linux environment. Create, manage, and maintain accounts and group memberships via Red Hat IPA. Experience managing Linux-based virtual server environments. Hands-on knowledge of RedHat Linux systems. Responsible for proactive systems monitoring and evaluation using Grafana, and for documenting, resolving, or escalating issues. Experience with Linux patching in an operational environment. Ensure all Linux systems run current antivirus software with up-to-date virus definitions. Ensure Linux systems are actively scanned by site-provided Tenable software, and results are used to maintain security. Qualifications: Must have an

active TS clearance with the ability to obtain a Polygraph . Hardware experience: servers, workstations, peripherals. Experience installing and configuring various COTS products. Experience supporting, maintaining, and securing Red Hat systems physically and virtually. Experience with Red Hat IPA. Experience with virtualization technologies (Red Hat Virtualization, VMWare, ESXi, VCenter, etc.). Experience with NAS. What You Can Expect: A culture of integrity. At CACI, we prioritize character and innovation, supporting our team in contributing to national security missions. An environment of trust. We value each employee's unique contributions and offer flexible time off and access to learning resources. Continuous growth opportunities. Join us to advance critical missions, grow your career, and build a lasting legacy. Learn more about CACI here. Pay Range:

The salary range is $75,200 - $158,100, influenced by location, experience, skills, and other factors. We offer comprehensive benefits, including healthcare, wellness, financial, retirement, family support, continuing education, and time off. Learn more here. This position may be located in multiple locations; the range shown is the national average. The proposed salary range for this position is: $75,200-$158,100 CCI is an Equal Opportunity Employer. All qualified applicants will receive consideration without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, veteran status, or other protected characteristics. #J-18808-Ljbffr