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155 system administrator jobs found

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Security Clearance system administrator
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ECS
May 06, 2026
Linux System Administrator
ECS VA
Everforth ECS is seeking a Linux System Administrator to provide temporary support to the Manpower & Reserve Affairs (M&RA) Customer. The selected candidate will be responsible for the administration, maintenance, and security of Linux-based systems hosted within the AWS GovCloud and MCCOG environments. Responsibilities U.S. Navy and DoD cybersecurity discussions, RPOC specifically means a Rapid Assess and Incorporate Software Engineering (RAISE) Platform of Choice (RPOC) System Administration: Install, configure, maintain, and troubleshoot RHEL/CentOS-based Linux servers within AWS GovCloud and MCCOG infrastructure Cloud Operations: Manage EC2 instances, S3, IAM roles/policies, VPCs, security groups, and other AWS services within the GovCloud boundary MCCOG Coordination: Interface with MCCOG teams for provisioning, accreditation, and operational support of cloud-hosted systems Security & Compliance: Implement and maintain STIG...
ECS
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...
SAIC
Apr 29, 2026
Senior Systems Administrator - RHEL
SAIC VA
Description SAIC is seeking a highly motivated and experienced Senior Systems Administrator - RHEL to join our MAJESTIC Joint Program Office (JPO) Team in Springfield, VA . This individual will play an integral role in managing and optimizing mission-critical Red Hat Enterprise Linux (RHEL) systems in a hybrid IT enterprise environment. The ideal candidate will have in-depth expertise in RHEL system administration, including configuration, maintenance, and performance optimization. Additionally, experience with virtualized environments and enterprise systems, including Windows Server and HCI solutions, is critical. The candidate will ensure system security, reliability, and efficiency while collaborating with cross-functional teams to support operations. This position requires on-site support in a high-security, fast-paced environment . Key Responsibilities: Administer, configure, and maintain Red Hat Enterprise Linux (RHEL)...
SAIC
Apr 22, 2026
Senior Systems Administrator II - Generalist
SAIC VA
Description SAIC is seeking a highly motivated and skilled Senior Systems Administrator II - Generalist to join our MAJESTIC Joint Program Office (JPO) Team in support of an on-premises enterprise IT environment. This individual will provide operational management, support, and maintenance of mission-critical infrastructure, including Windows Servers , Red Hat Enterprise Linux (RHEL) , and Nutanix hyper-converged platform solutions. The successful candidate will serve as a key member of a dynamic team responsible for ensuring the performance, reliability, and security of a large-scale enterprise IT environment. The Senior Systems Administrator II - Generalist will be responsible for server administration, patch management, system troubleshooting, and the implementation of new capabilities to meet operational and mission requirements. This role requires direct on-site support in the Springfield, VA location. Key Responsibilities: Perform...
SAIC
Apr 22, 2026
Systems Administrator - HCI
SAIC VA
Description SAIC is seeking a highly motivated and skilled Systems Administrator - HCI (Hyper-Converged Infrastructure) to join our MAJESTIC Joint Program Office (JPO) Team to support the operational management, maintenance, and optimization of mission-critical IT systems in an enterprise environment. This role focuses on administration and troubleshooting of hyper-converged infrastructure (HCI) systems, particularly Nutanix , as well as Windows Server and Red Hat Enterprise Linux (RHEL) environments. As a key member of the team, you will ensure the performance, scalability, and reliability of HCI systems while collaborating with cross-functional teams to support seamless operations. The ideal candidate has a robust understanding of virtualized environments, HCI technologies, and enterprise infrastructure. All work for this position must be conducted on-site in Springfield, VA. Key Responsibilities: Administer, configure, and maintain...
SAIC
Apr 22, 2026
Systems Administrator
SAIC MD
Description SAIC is seeking a System Administrator to support the U.S. Army Combat Capabilities Development Command (CCDEVCOM), Engineering and Systems Integration (ESI) Directorate, Quick Reaction Capability (QRC) Branch. This position is on-site in Aberdeen, MD. JOB DUTIES: Support major intelligence systems as well as several minor projects. Provide direct support to system integration activities at APG as well as providing remote support to fielded equipment. Perform specific software integration tasks and input to planning, schedule, design, and reporting monthly on smaller programs. Perform infrastructure support on three separate enclaves at various classification levels, which consist of resources to virtualize project baselines, tools to automate software builds and configurations, and the interfaces from which they manage all the projects. Qualifications REQUIRED EXPERIENCE AND CLEARANCE : Bachelor's degree and five (5) years' experience....
Lockheed Martin
May 08, 2026
Systems Engineer IT Sr
Lockheed Martin Fort Belvoir, VA
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. LM SPACE: WHAT WE'RE DOING Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. And we’re reimagining how space can connect us, ensuring security and prosperity. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. THE WORK Lockheed Martin is seeking a talented Level 3 Systems Engineer-IT with a TS/SCI w/ Poly...
SAIC
Apr 29, 2026
ServiceNow Software Engineer
SAIC VA
Description Make a difference for national security by joining a team of dedicated IT professionals who will sustain, modernize and transform the enterprise IT capabilities for the Defense Counterintelligence and Security Agency (DCSA). The Air Force, Space and Intelligence Business Group (AFSI) of SAIC is seeking a ServiceNow Software Developer Senior to support a transformational infrastructure program for DCSA. SAIC is proud to be supporting DCSA in safeguarding our nation's information. DCSA is the designated oversight authority on the accreditation of classified facilities, information systems, and the insider threat program. This involves security oversight of more than 10,000 companies and approximately 13,000 facilities involved in classified work throughout the DoD and 31 Federal agencies. Specifically, on the DCSA One IT program, SAIC will provide an enterprise IT solution that delivers highly secured and adaptable IT infrastructure, provides customer support, and...
SAIC
Apr 22, 2026
ServiceNow Developer
SAIC VA
Description SAIC is seeking a skilled and motivated ServiceNow Developer to join our team in support of an enterprise IT environment. The primary focus of this role is on the design, development, implementation, and enhancement of ServiceNow workflows and capabilities to address complex business and operational needs. The successful candidate will be responsible for developing custom modules, maintaining platform configurations, integrating ServiceNow with other enterprise systems, and ensuring adherence to best practices and security standards. This role involves collaboration with cross-functional teams, including stakeholders, system administrators, and process owners, to design scalable solutions that improve business processes, enable automation, and enhance operational efficiency. The ServiceNow Developer will work in a fast-paced, mission-critical environment to deliver innovative solutions that align with organizational goals. All work must be performed on-site in...
SAIC
Apr 22, 2026
Senior ServiceNow Developer
SAIC VA
Description SAIC is seeking a skilled and motivated Senior ServiceNow Developer to join our team in support of an enterprise IT environment. The primary focus of this role is on the design, development, implementation, and enhancement of ServiceNow workflows and capabilities to address complex business and operational needs. The successful candidate will be responsible for developing custom modules, maintaining platform configurations, integrating ServiceNow with other enterprise systems, and ensuring adherence to best practices and security standards. This role involves collaboration with cross-functional teams, including stakeholders, system administrators, and process owners, to design scalable solutions that improve business processes, enable automation, and enhance operational efficiency. The Senior ServiceNow Developer will work in a fast-paced, mission-critical environment to deliver innovative solutions that align with organizational goals. All work must...
Lockheed Martin
Apr 07, 2026
Information Systems Security Officer, Classified Cybersecurity
Lockheed Martin Cape Canaveral, FL
Description: This position will perform duties as a Computer System Administrator with secondary duties as a Classified Cybersecurity Information Systems Security Officer (ISSO) for the LM Space facility in Cape Canaveral, FL. System Administration consists of installing, configuring, and sustaining Operating System baselines on workstations and servers. Classified Cybersecurity Analysts help secure lifesaving products and critical state-of-the-art engineering and manufacturing systems by applying cutting edge cybersecurity principles. Rising to the challenge of building a more secure world for the warfighter, space exploration, climate sustainability and commercial use. The work that Cybersecurity Analysts do can be summarized in this way: - You will have a direct impact to national security, ultimately contributing to protecting your loved ones – this is dynamic, gratifying and impactful work! - You will have the opportunity to engage in all aspects of the cyber discipline....
SAIC
Apr 01, 2026
Cloud Based Network Engineer
SAIC CA
Description SAIC is seeking a TACNET ISEA Network Engineer (Fleet Support) to join our team in San Diego, CA . This position is Remote with expectations to be ON-SITE onboard US Navy ships and shore stations periodically. Candidate will interface with Active-Duty personnel and US Government employees to provide top notch repair support with a focus on United States Navy related networks. Related systems include Automated Digital Networking System (ADNS), Consolidated Afloat Networks and Enterprise Services (CANES), Flank Speed Wireless (FSW) and Navy Exchange Point (NXP) and all associated installed applications. The position may require travel, equal to approximately 25%, both US and international along with some off-hour support. JOB DUTIES: Provide break/fix Information Technology support in a fast paced, high-energy environment. Analyze issues in an Enterprise LAN Shipboard/Cloud Environments to determine the best course of action for resolution. Provide...
SAIC
Mar 11, 2026
ServiceNow Platform Architect
SAIC IL
Description SAIC is seeking ServiceNow Platform Architect to support the Enterprise ServiceNow Platform for USTRANSCOM located at Scott Air Force Base (AFB) in Illinois. The USTC Managed Information Technology Services (MITS) contract is intended to provide strategic, technical, and program management guidance and support services to facilitate the operations and modernization of the combatant command's infrastructure, systems, and applications. This support will be provided to the USTC Command, Control, Communications & Cyber Systems Directorate (TCJ6) and support all current and future integrations with command systems. The successful candidate will be responsible for working at the direction of the IT Service Manager, Platform Owner and with other Platform Core Team roles and Technical Leads to facilitate and ensure the success of the ServiceNow platform by focusing on the design, implementation, and optimization of ServiceNow solutions for the organization....
SAIC
May 06, 2026
Systems Administrator
SAIC
Description SAIC is seeking a Systems Administrator based in Bahrain. The qualified candidate will be a part of a small, agile, embedded team of support SMEs with FSET support; to include system administration, network administration, communication, and infrastructure. Embedded personnel are considered subject matter experts (SME), mission essential and deployable on any Regional Combat Command (RCC) exercises or operations that require the use of C2 Family of Systems. The Team provides on-site technical support at the garrison and deployed locations where the C2 system operates. Embedded personnel must relocate to the country in which the system operates for a minimum of 1 year assignment. Personnel may receive housing, cost of living, and relocation allowances in addition to base salary. This role cannot be supported remotely. Job Responsibilities: Installation of new hardware or software Creating and managing user accounts Maintaining computer systems such as servers...
SAIC
Apr 22, 2026
Systems Administrator
SAIC NM
Description SAIC is seeking a systems administrator to support the Space Systems Command on a program that directly assists the US Space Force. The ideal candidate will have experience providing design, implementation, maintenance, and troubleshooting functions for physical and virtual information systems and web-based applications. The selected candidate will interface with Active Duty, US Government, and contractor personnel to provide top-notch support with a focus on system/network security in support of national security; provide break/fix and design supporting Information Technology in a fast paced, high-energy environment; provide root cause analysis and be comfortable recommending permanent configuration changes when necessary. Support will encompass a range of capabilities from server and workstation configuration and support, LAN setup and maintenance. This position is based at Kirtland Air Force Base in Albuquerque, New Mexico. Primary duties and responsibilities...
SAIC
Apr 22, 2026
Principal Systems Administrator
SAIC NM
Description SAIC is seeking a systems administrator to support the Space Systems Command on a program that directly assists the US Space Force. The ideal candidate will have experience providing implementation, maintenance, and troubleshooting functions for physical and virtual information systems and web-based applications. The selected candidate will interface with Active Duty, US Government, and contractor personnel to provide top-notch support with a focus on system/network security in support of national security; provide break/fix and design supporting Information Technology in a fast paced, high-energy environment; provide root cause analysis and be comfortable recommending permanent configuration changes when necessary. Support will encompass a range of capabilities from server and workstation configuration and support, LAN setup and maintenance. This position is based at Kirtland Air Force Base in New Mexico. Primary duties and responsibilities may include:...
Lockheed Martin
Feb 17, 2026
Systems Administrator Lead
Lockheed Martin Herndon, VA
Description: The Contractor shall provide a Systems Administrator Lead to provide the Sponsor with a single POC to oversee and document administration, management, and provisioning of environments, accounts, permissions and roles, and profiles required for the development, O&M, and use of the Sponsor’s systems and applications. Basic Qualifications: - Bachelor's degree in Information technology, Computer Science, Cybersecurity, Computer Engineering, or Information Systems and three (3) years of combined experience in IT systems administration, IT systems/software development and integration, IT systems/software testing, cybersecurity compliance, IT systems troubleshooting, and incident response OR High School Diploma and five (5) years of combined experience in IT systems administration, IT systems/software development and integration, IT systems/software testing, cybersecurity compliance, IT systems troubleshooting, and incident response - Demonstrated two (2) years of...
General Dynamics Mission Systems, Inc
May 11, 2026
Junior Fleet Support Specialist HOH Fellows | Career Accelerator Fellows | SkillBridge Candidates Only
General Dynamics Mission Systems, Inc Port Orchard, WA
Basic Qualifications SkillBridge Eligibility: Has served at least 180 days on active duty Is within 12 months of separation or retirement Will receive an honorable discharge Has taken any service TAPS/TGPS Has attended or participated in an ethics brief within the last 12 months Received Unit Commander (first O-4/Field Grade commander in chain of command) written authorization and approval to participate in SkillBridge Program prior to start of internship. Responsibilities for this Position If you’re looking for a chance to experience civilian life and continue your mission to support our nation, then the General Dynamics Mission Systems Military Internship Program is the amazing challenge you’re looking for! At General Dynamics Mission Systems, you’ll learn from the best, those teams that create the technologies, products and services that help our nation’s heroes keep our nation safe. We are operating as an approved...
LMI
May 08, 2026
Lead Platform Engineer - Clearance Required
LMI Remote, UNAVAILABLE
Overview LMI is seeking an experienced Lead Platform Engineer with an active SECRET clearance and minimum of 5 years of demonstrated experience to support a US Special Operations Command mission partner. This role involves working directly with US military and US Government mission partners, as well as other contracting partners, to develop-deploy-maintain cloud-based and on-prem digital & software solutions for the Warfighter.     The ideal candidate is adept at applying platform principles in modern software environments, with strong understanding of software integration/testing, strong familiarity with DevSecOps pipelines, CI/CD practices, and cloud-native architectures. Candidates should be comfortable working across disciplines in secure environments (both on-prem and cloud-based), collaborating closely with developers and other engineers.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact...
SAIC
May 06, 2026
Senior Cyber Engineer
SAIC DC
Description SAIC is looking for a Senior Cybersecurity Engineer to support our US Navy customer with implementing Comply-to-Connect (C2C), Public Key Infrastructure (PKI), Zero Trust architecture, RADIUS authentication, and firewall security engineering. This position will support PEO Microsoft Teams Telephony initiative to ensure secure device authentication, regulatory compliance, and operational resilience for mission-critical Navy communications environments. This is a HYBRID/REMOTE ROLE in Washington, D.C. Must be local to area. JOB DUTIES: Lead the design and implementation of Comply-to-Connect (C2C) security framework supporting Navy enterprise networks. Engineer PKI solutions enabling secure device authentication across MS Teams Telephony and NetMod environments. Architect RADIUS authentication systems supporting 802.1X network access control. Implement firewall security policies ensuring secure communication flows for mission systems. Support RMF activities...
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