150 system administrator jobs found

Description SAIC is seeking a skilled and motivated System Administrator to join our team onsite in Colorado Springs and will play a key role in managing and advancing our IT infrastructure within a Department of Defense (DoD) environment. In this role, you will be responsible for maintaining robust, secure, and high-performing systems that support mission-critical operations. The ideal candidate brings hands-on experience with enterprise virtualization platforms (Nutanix, VMware, and/or Proxmox), Windows Server administration, and a working knowledge of DoD security compliance standards. You are someone who takes ownership, communicates clearly across teams, and thrives in a regulated, security-first environment. Responsibilities: Install, configure, and maintain Windows Server environments, including Active Directory, Group Policy, and user permissions management. Manage and optimize on-premises Type 1 hypervisor platforms (Nutanix, VMware, Proxmox) to ensure high...

Overview LMI is seeking an experienced Appian System Administrator to support Army CPE, ES2, AT&R in the sustainment and enhancement of the Army Contract Writing System (ACWS). ACWS is built on the Appian Platform. The Appian System Administrator will support platform configuration, environment operations, application deployments, access administration, monitoring, troubleshooting, and system reliability across ACWS environments.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.    Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the...

Basic Qualifications Master's degree, plus 3 years of relevant experience. Bachelor's degree in a specialized area or equivalent relevant experience is required; plus, a minimum of 5 years of relevant experience.   CLEARANCE REQUIREMENTS: Current or active Department of Defense Top Secret clearance with SCI eligibility required with ability to obtain a Polygraph 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 J oin the dynamic SPRINT Next Team as a Linux Systems Administrator specializing in Red Hat and PitBull technologies with an emphasis on web servers, databases, and cloud-based infrastructure knowledge. What You'll Experience Hands-on...

Description SAIC is hiring a Windows System Administratorto be located inPensacola, FL. This position requires the ability to assist with the architectural, engineering, administration of Windows infrastructure, as well as participate in the change process and incident response processes. The Windows System Administrator will provide: Desktop support of Windows 11 workstations in a Microsoft Active Directory environment. Microsoft Windows Server 2019, 2022, and 2025 support of virtual and physical servers. Management of VMware virtual environments and virtual networking (virtual distributed switches). Basic networking support to include basic troubleshooting. System patching utilizing Windows Server Update Services (WSUS) and Microsoft Endpoint Configuration Manager (MECM). Conduct system backups and restoral utilizing VEEAM. Verification of system vulnerability compliance by reviewing Security Center / Nessus scans. Verification of system configuration compliance with...

Description SAIC is seeking a highly motivated and skilled Senior Systems Administrator II - Desktop Support to join our MAJESTIC Joint Program Office (JPO) Team in support of an on-premises enterprise IT environment. This individual will provide desktop maintenance of mission-critical systems and infrastructure, including Windows Servers, Red Hat Enterprise Linux (RHEL), and Nutanix hyper-converged platform solutions. The successful candidate will serve as a member of a dynamic team responsible for ensuring the performance, reliability, and security of a large-scale enterprise IT environment. The Systems Administrator II - Desktop Support will be responsible for desktop 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 day-to-day system administration tasks to...

Standard Job Description WHAT WE'RE DOING: Lockheed Martin, Cyber & Intelligence invites you to step up to one of today’s most daunting challenges: the evolving threat of cyber warfare. As a cyber security professional at Lockheed Martin, you’ll protect the networks that our citizens and the world depend upon each minute. Here, you’ll work with cybersecurity experts on the forefront of threat protection and proactive prevention. In this fast-paced, real-world environment, you’ll draw on all your education and experience as well as the resources of Lockheed Martin to keep the threats at bay. THE WORK: The GG System Administrator is a senior level role that blends enterprise system administration (Linux & Windows) with full cycle network engineering, including design, deployment, and support of Arista as well as other vendor platforms. The incumbent will drive automation, security, and DevOps best practices while delivering resilient, high performance infrastructure...

Description SAIC is seeking a Senior Riverbed System Engineer to serve as a senior technical authority for Riverbed performance monitoring, digital experience management, and network visibility platforms across the enterprise environment located at MacDill AFB, FL. This role is responsible for engineering, administration, optimization, cybersecurity compliance, and lifecycle management of Riverbed technologies excluding SteelHead WAN optimization appliances. The Senior Riverbed System Engineer will be responsible for but not limited to the following duties: Design, implement, and document secure Riverbed monitoring architectures and data flows across NIPR, SIPR, and SOCRATES enclaves. Engineer scalable, interoperable deployments for hybrid, virtual, and physical infrastructures, ensuring enclave segmentation and cross-domain compliance. Integrate Riverbed platforms with SIEM, ITSM, cybersecurity, and enterprise monitoring tools. Provide Tier II/III engineering...

Description SAIC is seeking a Senior Riverbed System Engineer to serve as a senior technical authority for Riverbed performance monitoring, digital experience management, and network visibility platforms across the enterprise environment located at MacDill AFB, FL. This role is responsible for engineering, administration, optimization, cybersecurity compliance, and lifecycle management of Riverbed technologies excluding SteelHead WAN optimization appliances. The Senior Riverbed System Engineer will be responsible for but not limited to the following duties: Design, implement, and document secure Riverbed monitoring architectures and data flows across NIPR, SIPR, and SOCRATES enclaves. Engineer scalable, interoperable deployments for hybrid, virtual, and physical infrastructures, ensuring enclave segmentation and cross-domain compliance. Integrate Riverbed platforms with SIEM, ITSM, cybersecurity, and enterprise monitoring tools. Provide Tier II/III engineering...

Description SAIC is seeking a Cloud Systems Engineer to provide provision of Global Enterprise IT services, specifically focusing the design and management of the core cloud infrastructure. With a deep understanding of AWS & Azure service such as EC2/Azure Virtual Machines, VPC/Virtual Networks and S3/Storage accounts. In addition to these responsibilities, the Cloud Engineer create and maintain the foundational elements that support cloud applications and services. The Engineer is expected to deliver Tier 3 level support to SITEC 3 EOM mission partners. This critical support role involves the diagnosis, troubleshooting, and resolution of system outages, all while guaranteeing optimal service uptime and mission operational capabilities. The Cloud Systems Engineer is a pivotal role within our IT infrastructure team, providing tier three systems support in line with the SIE OPORD. This position demands a comprehensive understanding of government PAAS, SAAS coupled with...

Description SAIC is seeking a Cloud Systems Engineer to provide provision of Global Enterprise IT services, specifically focusing the design and management of the core cloud infrastructure. With a deep understanding of AWS & Azure service such as EC2/Azure Virtual Machines, VPC/Virtual Networks and S3/Storage accounts. In addition to these responsibilities, the Cloud Engineer create and maintain the foundational elements that support cloud applications and services. The Engineer is expected to deliver Tier 3 level support to SITEC 3 EOM mission partners. This critical support role involves the diagnosis, troubleshooting, and resolution of system outages, all while guaranteeing optimal service uptime and mission operational capabilities. The Cloud Systems Engineer is a pivotal role within our IT infrastructure team, providing tier three systems support in line with the SIE OPORD. This position demands a comprehensive understanding of government PAAS, SAAS coupled with...

Description SAIC is seeking a JTE Operator (Journeyman) to support the US Air Force Collaborative Operations for Battlespace Resilient Architecture (COBRA) program at the Multinational Aircrew Electronic Warfare Tactics Facility Polygone in Oberambach, Germany. COBRA provides for the implementation, integration, development, and delivery of training and technology solutions to support the US Air Force, Department of Defense, and mission partner multi-domain operations (MDO) within the Joint All-Domain Command and Control (JADC2) strategy. Overview: The JTE Operator provides advanced technicalexpertisein the operation, configuration, and real-time employment of the Joint Threat Emitter (JTE) system to deliver realisticElectronicWarfare(EW)Threat to Aerospace Operations (TTAO) training for U.S. and NATO aircrews. The JTE Operator enables "train-as-you-fight" scenarios by simulating multiple surface-to-air missile (SAM) and anti-aircraft artillery (AAA) threats, replicating...

Description The Riverbed SME (Subject Matter Expert) System Engineer serves as the senior technical authority for Riverbed performance monitoring, digital experience management, and network visibility platforms across the enterprise environment. This role is responsible for engineering, administration, optimization, cybersecurity compliance, and lifecycle management of Riverbed technologies excluding SteelHead WAN optimization appliances. The engineer will operate within and support multiple classified and unclassified environments, ensuring secure, compliant, and highly available performance monitoring capabilities across J6 mission systems. This position supports operations within the following enclaves: NIPR (Non-classified Internet Protocol Router Network) SIPR (Secret Internet Protocol Router Network) SOCRATES (as defined by the supported command architecture) The Riverbed SME will manage and support the following suites, as deployed:...

Description The Riverbed SME (Subject Matter Expert) System Engineer serves as the senior technical authority for Riverbed performance monitoring, digital experience management, and network visibility platforms across the enterprise environment. This role is responsible for engineering, administration, optimization, cybersecurity compliance, and lifecycle management of Riverbed technologies excluding SteelHead WAN optimization appliances. The engineer will operate within and support multiple classified and unclassified environments, ensuring secure, compliant, and highly available performance monitoring capabilities across J6 mission systems. This position supports operations within the following enclaves: NIPR (Non-classified Internet Protocol Router Network) SIPR (Secret Internet Protocol Router Network) SOCRATES (as defined by the supported command architecture) The Riverbed SME will manage and support the following suites, as deployed:...

Description SAIC is seeking a self-motivated TS/SCI cleared individual looking to move into the IT/Cybersecurity workforce. SAIC's Air Force, Space and Intelligence Business Group has an opening for a Cyber analyst/Help Desk/System Administrator that will join a 20+ year program in maintaining, validating, and performing continuous monitoring while supporting end users and developers. A successful candidate will help the program keep up-to-date with the latest technology and associated policies while focused on continuous monitoring activities to include regular scanning and patching, supporting software updates with opportunities for minor development (scripting), web application testing, and learning how to navigate the government's Risk Management Framework. Role may include assisting and eventually running user training sessions. Qualifications Required skills: Current DoD 8570 IAT Level I certification (such as CompTIA A+ or Network+) Willingness to work with...

Overview LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.   Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy sectors—helping agencies navigate complexity and outpace change. Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that strengthen missions and drive lasting value.   LMI is seeking a Functional Service Desk Agent with significant experience in DoW contracting to support the Army Contract Writing System (ACWS) as a member of the Tier 2 Functional Service...

Overview LMI is seeking a Functional Contracting SME to support Army Acquisition, Training, and Readiness (AT&R) in the sustainment and enhancement of the Army Contract Writing System (ACWS). This position requires experience in DoD contracting to support ACWS.   The ideal candidate has in-depth knowledge of both Army Contracting Enterprise business processes and ACWS functional processes and the ability to investigate and resolve functional issues supporting end users across the Army Contracting Enterprise. We are especially interested in former warranted contracting officers and former contract writing system Organizational Administrators or System Administrators who can pair deep acquisition expertise with a customer-first service mindset.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade...

Standard Job Description We are seeking an experienced Autonomic Logistics Information System (ALIS) Administrator to provide operational and technical support to a U.S. Navy unit in Iwakuni, Japan. The ALIS system provides the critical IT infrastructure supporting the F-35 Lightning II, enabling aircraft planning, maintenance, logistics, and sustainment. In this expatriate role, you will help ensure the security, availability, and integrity of mission-critical systems that support aircraft readiness and operational effectiveness. The ideal candidate will have strong systems administration skills, attention to detail, and experience working in a mission-critical or military environment. As critical members of the F-35 Operations Team, all ALIS administrators must be able to: * Obtain and maintain Special Access Program clearance required for program access * This is an operational support role to active fighter units. Administrators must be willing and able to travel for...

Basic Qualifications Active DoD Top Secret Clearance DoD 8140/8570 Certification Level II (Security + CE, CySA+, CISSP) DevSecOps experience with hands-on experience in CI/CD pipeline development, infrastructure as code (Ansible, Kubernetes, Terraform), and GIT version control Proficient in Red Hat Enterprise Linux (RHEL), with strong command-line and system administration skills Proficient in Microsoft Windows operating systems, including Windows Server 2016/2019 and Windows 11 Understanding of system hardening and security management, including hands-on experience with vulnerability remediation tools and platforms such as Nessus, McAfee, WSUS, Ivanti, Splunk, and SCAP Experience in on-premises virtualization technologies, including VMware ESXi/vSphere Comprehensive knowledge of enterprise storage and backup solutions, including EMC Unity and Data Domain Proficient in managing enterprise storage environments, including NetApp/EMC systems, tape management solutions,...

Description SAIC is seeking a skilled and motivated Systems Engineer - Platform to join our MAJESTIC Joint Program Office (JPO) Team in support of an on-premises enterprise IT environment. The primary focus of this role is the design, implementation, operation, and maintenance of enterprise infrastructure and platform services to ensure the seamless performance, scalability, security, and reliability of mission-critical IT systems. In addition to traditional platform services, we are seeking a systems engineer with specific expertise in Kubernetes and containerization technologies to support modernization efforts. The successful candidate will leverage their knowledge of containerized architectures to improve platform scalability, streamline deployments, and enhance system resiliency. This role requires collaboration within a complex enterprise environment of virtualized systems, cloud platforms, Windows infrastructure, and networking services to deliver secure and...

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...