Linux Administrator - ACAS

Company: CACI
Location: Springfield
Posted on: April 1, 2026

Job Description:

Job Title: Linux Administrator - ACAS Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * CACI IS THE WINNER of a long-term prime contract with the National Geospatial-Intelligence Agency (NGA) for Transport & Cybersecurity Services (TCS) contract. The functional capabilities are to provide the information technology (IT) infrastructure services required to deliver timely, relevant, and accurate support of national security. TCS will provide innovative design, engineering, procurement, implementation, operations, sustainment, and disposal of transport and cybersecurity IT services on multiple networks and security domains, at multiple locations worldwide to support the NGA mission. In this role, we're seeking a Linux Administrator - ACAS who could potentially be located in either Springfield, VA, or Saint Louis, MO . What You’ll Get to Do Provide all preventative and corrective maintenance to ensure consistent, reliable, and secure service availability. This includes all actions required to return the service to full operational capability such as vendor RMA processes, removal and proper disposal of broken equipment/software, installation and testing of new equipment/software, and configuration of new equipment/software Perform day-to-day maintenance, and specific scheduled maintenance activities that result from manufacturers' recommended service intervals, alerts, bulletins, available patches, and updates according to agency-approved change management processes. This includes maintaining updated documentation, change logs, and service bulletin libraries for all supported equipment and software in the CSOC knowledge management platform Execute emergency maintenance actions with sufficient urgency to preclude unacceptable outage durations, approved by the Government before execution, and coordinated through and approved by CSOC and ESC government management Perform all development, engineering, testing, integration, and implementation actions necessary for major vendor revisions Perform continuous engineering assessments to improve the performance, effectiveness, coverage, and maturity of this service. These assessments are limited to improvements that can be achieved without the purchase of additional hardware or software Perform all development, design, engineering, testing, integration, and implementation actions necessary to perform a full technology refresh every four years or upon Asset contract recompete, whichever comes first (Note: The assets supporting this service are acquired through a DoD contract). This includes the removal and disposal of the legacy capability More About the Role Operate all assets assigned to this service within the Government Furnished Information - Software Tools list in accordance with vendor instructions, industry best practices, government directives, policies, procedures, etc. Ensure all required data is routed to the DoD CMRS database in the appropriate format, and validate the accuracy of data contained within CMRS weekly Configure all assets assigned to this service within the Government Furnished Information - Software Tools list by all customer laws, directives, orders, policies, guidance, procedures, etc. Ensure this service provides 100% coverage of all applicable customer enclaves, domains, information flows, and devices. Provide weekly reports to CSOC government leadership on any people, processes, or technology challenges preventing the achievement of 100% coverage Use various monitoring, analysis, and visualization tools to track effectiveness, status, performance metrics, and other information as needed or required by CSOC government staff and contractors assigned Cybersecurity Operations Services and Cybersecurity Readiness Services Track vendor end-of-life and end-of-support status for assets in CDRL D0009 Asset Inventory Perform all development, design, engineering, testing, integration, and implementation actions needed for the total integration and interoperability between all applicable assets in the Government Furnished Information - Software Tools list. Utilize agency-approved ticketing systems to document, track, assign, update, and coordinate all engineering, integration, configuration, and maintenance actions Report as vendor updates are received You’ll Bring These Qualifications Top Secret/SCI clearance (current), with the ability to successfully obtain/maintain a polygraph (post-hire). Bachelor’s Degree and or equivalent experience in a related field and Six (6) years of relevant experience. Additional experience may be considered in lieu of a degree. DoD 8570 IAT III (current); CSSP Analyst certifications must be obtained within 120 days of the hire date Expert at operating and maintaining Linux systems Experience operating and maintaining applications hosted in a Linux environment Experience with vulnerability management applications, such as Nessus or ACAS This position is contingent on funding and may not be filled immediately. However, this position is representative of positions within CACI that are consistently available. Individuals who apply may also be considered for other positions at CACI. What You Can Expect: A culture of integrity. At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation. An environment of trust. CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality. A focus on continuous growth. Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy. Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Since this position can be worked in more than one location, the range shown is the national average for the position. The proposed salary range for this position is: $75,200-$158,100 CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

Keywords: CACI, Annandale , Linux Administrator - ACAS, IT / Software / Systems , Springfield, Virginia