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355 system administrator jobs found

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EC
Mar 19, 2026
NIH NIAID Software – CI – System Administrator III (Operations Management)
ECS VA
ECS is seeking an experienced NIH NIAID Enabling and Advancing Technologies (NEAT) CI System Administrator III (Operations Management) to work remotely . Please Note: This position is contingent upon contract award. The NIAID NEAT CI - System Administrator III (Operations Management) supervises and manages the daily activities of configuration and operations of systems which may be mainframe, mini, or client/server based. Plans and monitors the optimization of system operation and resource utilization and performs systems capacity analysis and planning. Oversees assistance to users in accessing and using business systems. Key Responsibilities: Manages the daily configuration and operation of various systems. Plans and monitors the optimization of system operations and resource utilization. Performs systems capacity analysis and planning. Oversees the assistance provided to users for business system access. Provide timely and effective applications maintenance...
EC
Mar 19, 2026
Senior IT System Administrator
ECS GA
ECS is seeking a Senior IT System Administrator to work in our Warner Robins, GA office. ECS is seeking a highly qualified Senior IT System Administrator with an active Top Secret/SCI Clearance and have a Security + CE and Red Hat Certified System Administrator (RHCSA) certificate to work on our project at Robins Air Force Base, GA. The selected candidate will be able to communicate effectively (written/verbal), possess strong interpersonal skills, be self-motivated, and be innovative in a fast-paced environment. Must hold and maintain a valid Top Secret/SCI Security Clearance. The candidate will be involved with product sustainment, product development, lab support, and engineering services in support of the Operational Flight Program (OFP), Test Program Set (TPS) development and support, Intelligence, Surveillance and Reconnaissance software and Mission Support (MS) business lines. Candidate will assist in evaluating current systems, planning of large-scale system...
EC
Mar 19, 2026
Jr. System Administrator
ECS AZ
ECS is seeking a Jr. System Administrator to work in our Sierra Vista, AZ office. As a leading provider of managed cybersecurity services, ECS provides a highly tailored and customized offering to each customer. Our team is responsible for protecting both our customers and corporate environment at ECS. Our mission is very broad, and our team is agile. We will look toward your unique skills to approach and solve problems in your own way. Whether engineering a system to address a technical hurdle, protecting customers data or consulting on a wide range of security topics. You are empowered to engage and lead across multiple groups. Job Responsibilities: Integrate with, and support, a team of subject matter experts in a highly agile environment to implement best-in-class, multi-Cloud solutions for large DoD programs. Work within a Hybrid Cloud engineering team to design, build, implement, and maintain Microsoft Office 365 security solutions to include Microsoft Defender....
Lockheed Martin
Mar 19, 2026
System Administrator
Lockheed Martin Hurlburt Field, FL, USA
Description: WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. WHAT WE'RE DOING At Lockheed Martin, we're revolutionizing the aerospace and defense sector through groundbreaking technology, advanced manufacturing processes, and a world-class team of professionals. Our mission-driven approach and unwavering dedication to excellence ensure that we continue to deliver superior products and solutions to our customers around the world. THE WORK Lockheed Martin is seeking a System Administrator to join our Information Technology team supporting the Air Force Special Operations (AFSOC) Air Commando Training Support (ACTS) contract. We are a dynamic and diverse team...
Lockheed Martin
Mar 18, 2026
Events Lead System Administrator - Secret Clearance
Lockheed Martin Colorado Springs, CO, USA
Description: What We're Doing Our Team, the Command and Control, Battle Management and Communications (C2BMC) Experimental Lab (X-Lab), is responsible for developing and integrating future-capability prototypes including Sensor/Weapon Integration, Algorithm Development, User Interface Development and other critical leading-edge missile defense technologies for the Missile Defense System that currently protects the United States and its allies. The team consists of many small agile teams that work together in a fast-paced and dynamic environment. The Work The Infrastructure Events Lead System Administrator's primary responsibility is to support the development and integration of a prototype lined mission suite to be introduced in a flight or ground test. This includes working with and managing a team to work each aspect of the suite buildout and verifying its ability to fully support the test. The Infrastructure Events Lead System Administrator is responsible for supporting...
Lockheed Martin
Mar 18, 2026
Technical Lead System Administrator - Secret Clearance
Lockheed Martin Colorado Springs, CO, USA
Description: What We're Doing Our Team, the Command and Control, Battle Management and Communications (C2BMC) Experimental Lab (X-Lab), is responsible for developing and integrating future-capability prototypes including Sensor/Weapon Integration, Algorithm Development, User Interface Development and other critical leading-edge missile defense technologies for the Missile Defense System that currently protects the United States and its allies. The team consists of many small agile teams that work together in a fast-paced and dynamic environment. The Work The Infrastructure Technical Lead System Administrator's primary responsibility is to support the development and integration of a prototype lined mission suite to be introduced in a flight or ground test. This includes working with and managing a team to work each aspect of the suite buildout and verifying its ability to fully support the test. The Infrastructure Technical Lead System Administrator is responsible for...
General Dynamics Mission Systems, Inc
Mar 11, 2026
Linux System Administrator (TS/SCI) - Service Desk
General Dynamics Mission Systems, Inc Fort Belvoir, VA, USA
Basic Qualifications Bachelor’s degree in a specialized area; or equivalent is required plus a minimum of 2 years of relevant experience; or Master's degree. CLEARANCE REQUIREMENTS: Department of Defense TS/SCI security clearance is required at time of hire. Must be able to obtain Polygraph. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position   Role and Position Objectives:  Join our team as a Linux Systems Administrator (Service Desk) for Space, Cyber and Intelligence Systems! You'll work with a diverse team managing enterprise systems, specialized Linux OS, cross-domain solutions, and boundary devices.   What You’ll Experience: Hands-on work with RedHat Linux, system/server builds, and...
SAIC
Mar 11, 2026
Campus Mobility System Administrator
SAIC FL
Description SAIC has an immediate opening for a Senior Campus Mobility System Administrator to support the Special Operation Command Information Technology Enterprise Contract (SITEC) - This critical position is located at the SOCOM Headquarters at MacDill AFB in Tampa, FL. The purpose of the Special Operations Forces Information Technology Enterprise Contract(SITEC) 3 Enterprise Operations and Maintenance (EOM) Task Order (TO) is to provide USSOCOM, its Component Commands, its Theater Special Operations Commands (TSOCs),and its deployed forces with Operations and Maintenance (O&M) services to maintain Network Operations (NetOps); maintain systems and network infrastructure; provide end user and common device support; provide configuration, change, license, and asset management; conduct training, and perform Install, Move, Add, Change (IMACs) services. The responsibilities and tasks associated with each requirement play a pivotal role to USSOCOM, the CIO/J6 organization,...
Lockheed Martin
Mar 09, 2026
System Administrator
Lockheed Martin Kirtland Air Force Base, NM, USA
Description: WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. WHAT WE'RE DOING At Lockheed Martin, we're revolutionizing the aerospace and defense sector through groundbreaking technology, advanced manufacturing processes, and a world-class team of professionals. Our mission-driven approach and unwavering dedication to excellence ensure that we continue to deliver superior products and solutions to our customers around the world. THE WORK Lockheed Martin is seeking a System Administrator to join our Information Technology team supporting the Air Force Special Operations (AFSOC) Air Commando Training Support (ACTS) contract. We are a dynamic and diverse team...
Lockheed Martin
Feb 26, 2026
Training Simulator System Administrator /F-35 / Ghedi, Italy
Lockheed Martin Orlando, FL, USA
Description: WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. WHAT WE'RE DOING At Lockheed Martin, we're revolutionizing the aerospace and defense sector through groundbreaking technology, advanced manufacturing processes, and a world-class team of professionals. Our mission-driven approach and unwavering dedication to excellence ensure that we continue to deliver superior products and solutions to our customers around the world. THE WORK Foreign Assignment: This position will offer a long-term deployment to a foreign country as a Training System Simulator System Administrator for the F-35. The successful candidate will support the sustainment,...
General Dynamics Mission Systems, Inc
Feb 23, 2026
Dev Ops System Administrator
General Dynamics Mission Systems, Inc Scottsdale, AZ, USA
Basic Qualifications Education Requirements: Bachelor’s degree in Computer Science, a related field or equivalent experience is required plus a minimum of 8 years of relevant experience; or Master's degree plus 6 years of relevant experience. Clearance Requirements: Department of Defense TS/SCI with Polygraph security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position Put your engineering talent to the ultimate test. At General Dynamics Mission Systems, we create the technologies, products and services that help our service members, intelligence analysts and first responders keep our nation safe. The work we do is so advanced our teams often redefine what’s...
Lockheed Martin
Mar 12, 2026
F-22 IMIS System Administrator (Level 2), Secret Clearance
Lockheed Martin Anchorage, AK, USA
Description: We are seeking an experienced Unix or Windows Administrator to join our F-22 Field Operations Team at Elmendorf Air Force Base, Alaska. As a critical member of our team, you will be responsible for providing technical support, system administration, and data management for our Integrated Maintenance Information Systems (IMIS). You will work closely with our customer to ensure the smooth operation of our systems and provide exceptional support to our users. What You Will Be Doing • Administer and maintain Solaris Unix, RedHat Enterprise Linux (RHEL), and Windows operating systems. • Work various shift hours and on-call to include weekends to support customer mission requirements • Provide primary customer point of contact for technical items • Aid/augmentation to local IMIS leadership • Perform backups, restores, and disaster recovery of systems/databases/network equipment • Maintain system/software/firewall/account maintenance and monitoring • Troubleshoot and...
Lockheed Martin
Mar 12, 2026
F-22 IMIS System Administrator (Entry Level), Secret Clearance
Lockheed Martin Anchorage, AK, USA
Description: We are seeking a motivated and talented IMIS Administrator to join our F-22 Field Operations Team at Elmendorf Air Force Base, Alaska. As a critical member of our team, you will be responsible for providing technical support, system administration, and data management for our Integrated Maintenance Information Systems (IMIS). You will work closely with our customer to ensure the smooth operation of our systems and provide exceptional support to our users. What You Will Be Doing • Administer and maintain Solaris Unix, RedHat Enterprise Linux (RHEL), and Windows operating systems. • Work various shift hours and on-call to include weekends to support customer mission requirements • Provide primary customer point of contact for technical items • Aid/augmentation to local IMIS leadership • Perform backups, restores, and disaster recovery of systems/databases/network equipment • Maintain system/software/firewall/account maintenance and monitoring • Troubleshoot and...
Lockheed Martin
Mar 12, 2026
Multifunctional System Administrator (Level 3) / Iwakuni, Japan
Lockheed Martin Greenville, SC, USA
Description: Lockheed Martin Aeronautics. Be More Than You Can Imagine. Joining the Lockheed Martin ALIS team immediately opens a world of educational and experiential development opportunities for you. Tuition Assistance is available for undergraduate and graduate degree programs as wells as professional and technical certifications to help you gain the specialized skills for personal and professional growth. Professionally, ALIS IT Service administrators develop skills of our many domestic US or expanding number of International locations. For the adventurous, temporary travel opportunities allow you to provide support at other locations and aboard ships deploying with the system. With experience, leadership opportunities become available as squadron leads, technical experts, and functional personnel leaders. At Lockheed Martin we are driven by innovation and integrity. We believe that by applying the highest standards of business ethics and visionary thinking,...
Lockheed Martin
Mar 12, 2026
F-35 ALIS Mission Planning System Administrator
Lockheed Martin Greenville, SC, USA
Description: Lockheed Martin Aeronautics. Be More Than You Can Imagine Joining the Lockheed Martin ALIS/OMS team immediately opens a world of educational and experiential development opportunities for you. Tuition Assistance is available for undergraduate and graduate degree programs as wells as professional and technical certifications to help you gain the specialized skills for personal and professional growth. In this role you will support day to day operations at an active F-35 squadron. For the adventurous, temporary travel opportunities allow you to provide support at other locations and aboard ships deploying with the system. This role is for a Mission Planning Administrator for the Joint Strike Fighter (JSF) Autonomic Logistics Information System (ALIS) at Iwakuni, Japan, in support of the US United States Marine Corps. A Day in the Life As an Mission Planning Administrator with our F-35 ALIS team partnering with our customer, you will wear many hats; mission planning...
SAIC
Mar 11, 2026
System Administrator
SAIC FL
Description JOB DESCRIPTION : SAIC is searching for a Systems Administrator to support one of the foundational networks in the Joint Expeditionary Command and Control (JEXC2) family of systems.JEXC2 systems are made up of various command, control, communications, computers and intelligence subsystems and networks, including associated infrastructure and communications equipment. The program is aimed at supporting the military's bid to achieve a Joint All-Domain Command and Control capability, which is the concept of connecting sensors across all domains, including space and cyberspace, into a single network. Work will be performed onsite in Panama City Beach, FL . Local candidates are encouraged to apply. The ideal candidate will have a strong background in virtualization technology and demonstrable experience working with VMware products. You will design, configure and support a virtual system where you will maintain its operational state, perform upgrades and...
SAIC
Mar 11, 2026
Infrastructure System Administrator
SAIC CA
Description SAIC is seeking an experienced Systems Administrator to join our Technical Engineering and Design Department in support of our United States Air Force customer. We have positions available in San Diego and Honolulu. Responsible for asset installation/configuration, operation and maintenance of systems hardware, software and related infrastructure. Configure and manage operating systems (Windows and Linux), applications (commercial and government), networks (IPs, subnets, etc.), and network equipment (switches). Configure and manage DOD and IC standard distributed authentication services. Build up systems from "bare metal" in alignment with accredited baselines. Ensure that system hardware, operating systems, software systems and related procedures adhere to government policies. Perform regular security monitoring to identify any possible intrusions. Perform daily backup operations. Perform regular file archival and purge, as...
SAIC
Mar 11, 2026
Infrastructure System Administrator
SAIC HI
Description SAIC is seeking an experienced Systems Administrator to join our Technical Engineering and Design Department in support of our United States Air Force customer. We have positions available in San Diego and Honolulu. Responsible for asset installation/configuration, operation and maintenance of systems hardware, software and related infrastructure. Configure and manage operating systems (Windows and Linux), applications (commercial and government), networks (IPs, subnets, etc.), and network equipment (switches). Configure and manage DOD and IC standard distributed authentication services. Build up systems from "bare metal" in alignment with accredited baselines. Ensure that system hardware, operating systems, software systems and related procedures adhere to government policies. Perform regular security monitoring to identify any possible intrusions. Perform daily backup operations. Perform regular file archival and purge, as...
Lockheed Martin
Mar 06, 2026
F-22 IMIS System Administrator (Entry Level)
Lockheed Martin Nellis Air Force Base, NV, USA
Description: Join the Lockheed Martin Aeronautics Field Sustainment Team as an IT Systems Administrator for our Nellis Air Force Base, Nevada office. As critical members of the F-22 Field Operations Team, all Integrated Maintenance Information Systems (IMIS) Administrators must be able to: • Obtain and maintain Special Access Program clearance required for program access • Capable of working various shift hours to include weekends to support customer mission requirements. • Candidates offered a position may be required to complete a pre-employment medical exam that is designed to ensure capability to deploy with our military customer, which may be to austere environments with limited access to medical care. A Day in the Life: As an IMIS Administrator with our F-22 IMIS team partnering with our customer, you will wear many hats; system admin duties, data management duties, network admin duties and mission planning admin duties. IMIS Administrators are generally the first point of...
Lockheed Martin
Feb 05, 2026
Flight Test System Administrator
Lockheed Martin Edwards Air Force Base, CA, USA
Description: We are Lockheed Martin We are seeking a highly motivated IT Systems Engineer to support mission critical flight test and simulation environments, including the Multi-ship Virtual Development Lab (MVDL). This role blends traditional enterprise IT administration with hands-on support of advanced simulator systems used in test and evaluation. The ideal candidate is comfortable working across Windows Server and Linux environments, excels at technical troubleshooting, and has experience supporting cybersecurity and vulnerability management efforts in regulated or mission focused environments. Key Responsibilities • Administer, maintain, and troubleshoot Windows Server systems supporting flight test equipment and simulators • Administer and support Linux systems used in simulation and test environments • Perform system hardening, patching, and vulnerability remediation in coordination with cybersecurity requirements • Conduct and support vulnerability scanning using...
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