26 to 50 of 113 Senior Systems Administrator Jobs

by-side with our clients on some of the most complex technical challenges facing our nation. Security Clearance: • TS/SCI We are seeking a Senior Systems Administrator in Norfolk, VA. The selected candidate will administrator Windows Domains and will optimize the customer's existing architecture by establishing standardized configurations for hosting … configure, test, maintain, monitor, and VMware • Assist with network security through the implementation of STIGs and actively maintain IAVA compliance • Provide support services such as data protection (backup and systems security), Microsoft Windows 2016 Active Directory (to include Group Policy management), WSUS, DHCP, DNS, Microsoft Exchange services, client imaging using WDS, and other server/network application services Requirements More ❯

About This Job GoldenTech, a leader in Air and Space Force Solutions, has an opening at Hill Air Force Base, Utah, for a Senior Systems Administrator with emphasis on Primavera Experience. This role is part of our Information Services team, contributing to our mission of Strategic Deterrence by driving continual improvement and innovation. Key … functionality, ensuring security configurations, and removing software from networks as needed Training team members in business practices and documenting Standard Operating Procedures (SOPs) Performing software version upgrades and providing systems administration for Windows servers (2016 and 2019) and workstations Designing, installing, configuring, and troubleshooting Microsoft Active Directory Implementing and testing software patches and security fixes; configuring and hardening new More ❯

/distribution and backup/recovery of system configurations and user data files Understand and use essential tools for handling files, directories, command-line environments, and documentation Operate running systems, including booting into different run levels, identifying processes, starting and stopping virtual machines, and controlling services Configure local storage using partitions and logical volumes Create and configure file systems and file system attributes, such as permissions, encryption, access control lists, and network file systems Deploy, configure, and maintain systems, including software installation, update, and core services Manage users and groups, including use of a centralized directory for authentication Manage security, including basic firewall and SELinux configuration Configure static routes, packet filtering, and network address translation Set … Evaluate-STIG, STIG-Manager) Knowledge of/experience with Tenable suite of products (Security Center, Nessus Scanner, Nessus Agent) is a plus Seeking specific experience with the following operating systems and services is required: Red Hat Enterprise Linux (RHEL 8.x with RHEL 7.x and/or RHEL9.x a plus) Must meet DoD 8570 Information Assurance Workforce (IAWF) criteria or More ❯

Digital Dynamo Linux Systems Administrator (We're always looking for great Systems Administrators of ALL LEVELS! And if all of the Systems Administrator positions are starting to look the same, and you may just want someone to review your resume. Go ahead and upload your resume. If you are a fit for a … we will reach out once that role becomes available. Feel free to check back with our Careers site too ) Join our dynamic team as a Digital Dynamo's aka Systems Administrator Extraordinaires! We're in search of a tech-savvy individual who will not only provide top-notch support for our IT systems, but also inject More ❯

The Alaka`ina Foundation Family of Companies (FOCs) is looking for a Senior Linux Systems Administrator Range Network. The position will support our government customer located in Kekaha, Hawai'i. Apply promptly! A high volume of applicants is expected for the role as detailed below, do not wait to send your CV. Oversee and … manage enterprise-level Linux infrastructure in support of U.S. Navy operations within a Department of Defense (DoD) environment. This role requires deep technical expertise in Linux systems, leadership in secure system administration, and a strong working knowledge of Risk Management Framework (RMF) and NIST SP 800-53 controls. The ideal candidate will demonstrate the ability to lead teams, manage … RESPONSIBILITIES: Administer and maintain Red Hat Linux (RHEL) and other Linux-based environments in classified and unclassified environments across Navy networks. Implement and maintain RMF security controls and ensure systems are compliant with DISA STIGs and DoD cybersecurity policies. Apply and manage patches and updates across all Linux systems in accordance with DoD and Navy patch management policies. More ❯

SAP NS2 Senior Cloud Engineer/Systems Administrator - Onsite - Chantilly, VA Active TS SCI with Polygraph Required NS2 COMPANY DESCRIPTION SAP is the global market leader for business software and related services. SAP National Security Services Inc. (SAP NS2 ) is an independent U.S. subsidiary of SAP. At SAP NS2, we leverage best-in-breed … with Poly; NS2 does not offer Visa sponsorships for this role. All internals must have manager's approval to transfer. The NS2 Senior Cloud Engineer/Systems Administrator candidate will be responsible for leading the development of a standalone implementation of SAP Products and solutions that meet our client's complex needs. This position … is located onsite in Chantilly, VA. Candidate should be hands-on and has the necessary knowledge of cloud-based systems and associated security principals to effectively work with minimal supervision in a cloud environment, understanding the complexities that come with cloud, and can effectively communicate cloud design/architecture ideas to technical as well as non-technical client stakeholders. More ❯

Senior Information Systems Administrator Concurrent Technologies Corporation Huntsville, AL Minimum Clearance Required: Top Secret Clearance Clearance Level Must Be Able to Obtain: Top Secret Clearance CTC stays ahead of the latest technology advancements so we can help solve our clients' toughest challenges. As a part of the Digital Mission Solutions Division, you will be … networks in a classified research and development lab working with space-based information systems. CTC has put together a cohesive energized team who work together on providing secure data systems while dealing with the challenges of critical space-based data. You will get to work with leading edge technologies, further develop your technical skills, and expand into cloud technologies … and administration. Key Responsibilities: Maintain current systems and adhere to policies and procedures to ensure their security and integrity on Army Classified networks. Support the Risk Management Framework (RMF) in a classified environment while helping to identify and implement overall security requirements for the proper handling of data and provide guidance for development and operational efforts regarding information assurance More ❯

an organisation with a long-established reputation for providing the highest standards of products and service provision to a worldwide client base. The role - Senior IT Systems Administrator You will have a varied and challenging role supporting all stakeholder groups within a busy manufacturing environment and will be responsible for ensuring robust, secure, and … efficient IT systems are effectively maintained across manufacturing, warehousing and office functions. Your broad range of duties and responsibilities will include; Ensuring all IT systems and infrastructure are effectively developed and maintained to meet all organisational and operational requirements Manage and maintain all IT infrastructure across companywide manufacturing sites, including servers, industrial PCs and networked production equipment Support … ERP integrations Ensure high availability of systems supporting production lines, including real-time monitoring and rapid incident response Implement and manage highly effective cybersecurity measures across all IT and associated equipment infrastructure Lead system upgrades and patching with minimal disruption to production schedules Collaborate with engineering and operations teams to align IT systems with lean manufacturing goals Maintain More ❯

Us " and "We Innovate for Those Who Move the World." Sound like a team you want to be a part of? Come build your career with BAE Systems. BAE Systems is seeking a Senior Closed Area Linux Systems Administrator to provide comprehensive technical and operational support for classified IT systems. You will primarily … support the GXP Program. BAE Systems Geospatial eXploitation ( GXP ) develops industry-leading geospatial intelligence software for data management, image exploitation, and reporting. Position Summary: This position requires a seasoned IT professional with expertise in managing complex, air-gapped systems and lab environments in accordance with DoD and Intelligence Community security requirements. Mainly working in a Linux OS environmenet … you will be responsible for the configuration, maintenance, and monitoring of secure networks and systems, including Lab-in-a-Box (LIB) environments, virtualization platforms, endpoint protection, and logging/alerting tools. This position is 100% onsite within a closed, classified area. Some after-hours or weekend support may be required for maintenance windows or incident response. You must be More ❯

Overview Systems Planning and Analysis, Inc. (SPA) delivers high-impact, technical solutions to complex national security issues. With over 50 years of business expertise and consistent growth, we are known for continuous innovation for our government customers, in both the US and abroad. Our exceptionally talented team is highly collaborative in spirit and practice, producing Results that Matter . … SPA: Objective. Responsive. Trusted. The Space and Intelligence Division provides professional services to the US Space Force, Combatant Commands, Intelligence Community, and NASA. Our work includes enterprise architectural assessments, systems engineering and integration, test, planning and execution, cost estimating and analysis, acquisition support, and cybersecurity. We are trusted partners developing approaches and concepts to meet emerging high priority needs … assessing cutting-edge technologies, and supporting capabilities for our National Defense. Come join the fastest growing Division at Systems Planning and Analysis, Inc.! The Intelligence Programs Group (IPG), part of Systems Planning and Analysis Inc.'s Space and Intelligence Division, is a specialized provider of systems engineering and trusted advisory services to the Space and National Intelligence More ❯

Golden Tech Systems inc SR SYSTEMS ADMINISTRATOR Position Description: Certified Microsoft systems administrator with strong experience managing distributed infrastructures and data center operations composed of Windows platforms. Ability to plan, configure, install, and optimize information technology (IT) infrastructures to optimize performance and maintain high service availability. The successful candidate will be responsible for … Clearance based upon a SSBI • IAT Level II certification in accordance with DoDD 8140.01 "Cyberspace Workforce Management" (or achieve within six months of TOA) prefer CompTIA Security+ • Microsoft Certified Systems Engineer (MCSE), or Azure, or Office 365 Administration related certification Minimum Education Required: Bachelor's degree in computer science, computer programing, computer engineering, or a related discipline is required … Position Requirements: • Ten (10) years cross-platform experience in systems administration including analyzing, installing and maintaining hardware, software, peripherals and networks • Seven (7) years of hands-on end point (i.e., client and mobile) troubleshooting and problem solving • Five (5) years of Microsoft Server (i.e., Active Directory, DNS, Exchange, SharePoint, Teams) troubleshooting and problem solving experience • Three (3) years of More ❯

why we are a top veteran employer and Certified Great Place to Work ASRC Federal System Solutions, LLC. (AFSS), a subsidiary of ASRC Federal, is a premier provider of systems engineering, software engineering, system integration and project management services for real-time, mission-critical defense systems. AFSS is seeking a Principal System Administrator in Colorado Springs, CO … to support the Ground Based Radar Maintenance and Sustainment Service (GMASS) program. Key Role: • Perform as a Windows/Red Hat/Linux Systems Administrator for a large, classified government contract. • Maintain smooth operation of multi-user computer systems, including coordination with network, software, hardware, and system engineers, end users, customer and IT management. • Support multiple … implement system enhancements to improve performance and reliability of the system including installing, upgrading/patching, monitoring, problem resolution, and configuration management. • Provide backup and recovery services; manage file systems and disk space; manage virus protection on a routine basis. • Create and maintain user and computer accounts and modify file permissions and security access lists. • Make recommendations to purchase More ❯

Position Overview: The Senior Windows Systems Administrator leads complex system administration and endpoint configuration activities within the environment. This role covers the management of enterprise systems, storage, patching, and endpoint solutions across Windows platforms. The role ensures the performance, reliability, and security of infrastructure by managing staff, planning resources, and aligning technology with … Resolve complex technical issues and provide Tier 3 support as necessary. Implement and enforce ARL security, reliability, and performance standards. Promote and maintain documentation and standard operating procedures for systems administration teams. Required Qualifications: Experience: Minimum of 10 years in systems administration and IT infrastructure leadership Education: Master's degree OR Bachelor's degree with an additional More ❯

Move Forward with Volt Volt is immediately hiring for a Senior Linux Systems Administrator in Aurora, CO. You will be supporting a client's program in a classified environment as a Linux System Administrator. Responsibilities include building, maintaining, and securing Information Technology systems and directly supporting customer mission-critical capabilities. You will work … higher). IAT Level 2 requires one or more of the following Professional Certifications: Security+ CE, CCNA Security, GICSP, GSEC, SSCP, CySA+, CND. Experience administering Red Hat Linux based systems with minimal support, to include patching, creating/maintaining RPM packages, performance tuning, networking, user management (LDAP), and security hardening Qualifications We Prefer Using and developing with automation tools …/frameworks such as Terraform, Ansible, and Chef as well as scripting - particularly in Bash and Python Experience administering Windows based systems Experience with pipeline tools such as Jenkins and Artifactory Demonstrated ability to work independently and troubleshoot problems with efficiency Deployment and administration of systems in Amazon Webservices (AWS) Pay Rate: Pay range offered to a successful More ❯

ManTech seeks a motivated, career and customer-oriented Senior System Administrator; to join our team in Chantilly, VA. A qualified Senior Systems Administrator will support a secure Windows-based Information System and will assist and support the installation, operation, and maintenance of all current and future Information Systems. Duties … of identity access management principles. Have a minimum of a DoD 8570 IAT Level II. Preferred Qualifications: Advanced AWS certification (e.g., AWS Certified Solutions Architect, AWS Certified SysOps Administrator). Experience with automation tools and scripting languages (e.g., Python, Bash). Knowledge of DevOps practices and tools (e.g., Jenkins, Terraform). Clearance Requirements: Must have a current/ More ❯

Job Description: Sr System Administrator Clearance: TS/SCI Location: Crystal City, VA Mon-Fri: Core hours Salary: 150K+ Job Summary: As the Senior Systems Administrator/Task Lead (NCR), you will act as a model of customer service excellence to all organizational staff members in the Office of Military Commissions (OMC … conduct reviews, and contribute to personnel changes. • Facilitate professional and technical development opportunities for the team. • Utilize ITIL best practices to enhance and optimize services provided to end users. Systems Administration & Infrastructure Support: • Provide operational and maintenance (O&M) support for NIPRNET, SIPRNET, and JWICS system infrastructure, supporting approximately 400 users. • Provide O&M support for Special Access System … SAN), VMware vSAN, and encrypted file storage capabilities. • Support the technical upgrading and maintenance of desktop systems. • Verify and implement system upgrades to ensure longevity and optimal performance. • Provide systems recovery and repair operations, employing industry best practices for troubleshooting and fault isolation. • Conduct the planning, implementation, validation, and verify all server system upgrades, patches, and STIGs to meet More ❯

SCOPE: Serves as a Senior Systems Administrator with primary responsibilities for VMware administration on a major IT services contract for the U.S. Navy RESPONSIBILITIES and EXPERIENCE: Design, deploy, and manage VMware infrastructure components, including ESXi hosts and vCenter Server. Experience managing Microsoft Windows domain architecture, including Active Directory deployment, Group Policy configuration, and DNS …/DHCP services. Create and administer virtual desktop environments (e.g., VMware Horizon View), virtual machine templates, snapshots, and virtual networking. Configure and provision storage systems (e.g., iSCSI, NFS, VMFS), and perform patch management, data backup, and disaster recovery planning in virtualized environments. Perform optimization, capacity planning, configuration management, troubleshooting, monitoring, patching, and support of on-premise and cloud-based … controls, and group policies; apply NIST RMF security controls and DoD STIGs; maintain system security baselines. Manage production environments using automated tools and procedures to install, build and deploy systems; monitor and enforce configuration management; monitor application performance and security; and perform system backups and restores. QUALIFICATIONS: Bachelor's degree in Information Technology, Computer Science, Software Engineering, or related More ❯

MANTECH seeks a motivated, career and customer-oriented Senior IT Systems Administrator to join our team in Chantilly, VA. Responsibilities include but are not limited to: Providing end-user support to personnel utilizing ITD IT systems. Triaging help desk tickets for a broad range of service requests to include file transfers, assistance with desktops … of physical desktop, data center equipment and other IT assets. Performing general operations & maintenance for COTS/GOTS hardware and software. Minimum Qualifications: Bachelor's degree in Computer Science, Systems Engineering, or other IT-related discipline and 5+ years of relevant experience in Information Technology. In lieu of a Bachelor's: Associates' degree and seven (7) years of relevant … configuring physical equipment. Ability to provide technical support in the management of networks, software, hardware, configurations and architectures. Experience and ability to perform software installations and upgrades to operating systems and layered software packages. Experience with Intelligence Community Directive (ICD) 503 and system Assessment and Authorization (A&A) procedures/processes. Experience writing clear, concise, and user-friendly technical More ❯

around the world safe and secure. Program Overview This programs enables operational planning and management of cryptologic sensors. About The Role Peraton is seeking a Senior Systems Administration (SA) to support an Intel Community (IC) mission in the Annapolis Junction area. The Senior SA will provide support for implementation, troubleshooting and maintenance of … Information Technology (IT) systems. Responsibilities may include: Manage IT system infrastructure and any processes related to these systems. Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc. Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis … to agency management and internal customers. Provide support for the dispatch system and hardware problems and remains involved in the resolution process. Configure and manage UNIX and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and configures network components along with implementing operating systems enhancements to improve reliability and performance. Qualifications Required Qualifications More ❯

seeking a Senior Systems Administrator - Tier-2 Level to support upcoming work located in San Antonio, TX. Position: Senior System Administrator, Tier-3 Level Support Services Location: San Antonio, TX (On-Site) Clearance: U.S. Citizen with ability to obtain a Public Trust Summary: This contract will provide 24/… to include resetting and configuring devices. Identify and troubleshoot Enterprise Management (EM) issues related to patches and servers. Troubleshoot and resolve Data-at-Rest (DAR) issues. Provide Site Administrator support and Enterprise monitoring for Group Policy Objects (GPO), initial troubleshooting of GPOs, adding Security Groups to group policies. Perform system administration tasks on Enterprise server and end-user More ❯

you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting law enforcement agencies? We're looking for a systems administrator who specializes in Windows to help us build solutions to help fight crime. As a systems administrator on our project, you'll ensure More ❯

Job Description BAE Systems is offering an exciting opportunity to support an important and dynamic Department of Justice customer as a Senior System Administrator-Virtualization (SSA/Virtualization) supporting a highly capable and diverse team driving technical innovation. The SSA/Virtualization shall plan, lead and, if necessary, conduct site-surveys and uses the … in designing, managing, administering, documenting, troubleshooting, and supporting multiple, heterogeneous computer networks in both production and development environments. SKILL Level- At a minimum, the Senior System Administrator/Virtualization shall have demonstrated experience in: Install, configure, implement, and validate installation of components on networks including but not limited to: Citrix XenServer and XenApp Citrix NetScaler … over PVS (PVS is not used). Microsoft (current Version) Failover Cluster Microsoft (current Version) Hyper-V Manager Microsoft System Center Virtual Machine Manager (SCVMM) Hypervisors and virtualization sub-systems Container Systems PowerShell scripting Splunk - dashboard management experience Sys Admin duties - Certs, DHP, Microsoft services, network troubleshooting, Windows server 2019/2022 Infrastructure as Code methodologies Administer a More ❯

Shape the Mission. Engineer the Future. GDIT is your place to lead, innovate, and drive strategic change. We are seeking a Senior System Administrator/Integrator with proven experience delivering mission-critical integration for complex, multi-domain DoD environments. In this role, you'll be at the forefront of geospatial and intelligence system evolution - leading … integration efforts, shaping architectural solutions, and mentoring technical teams. As a Senior System Administrator/Integrator, you will lead the design and integration of advanced geospatial and intelligence platforms. Your work will translate operational and technical requirements into secure, scalable, and forward-looking architectures that align with Army modernization and convergence efforts. What You'll … and geospatial software baselines. Lead integration efforts and manage complex issues in real-time and driving improvements for interoperability and readiness. Key Responsibilities: Serve as technical lead for Army systems integration initiatives and geospatial software baselines. Develop system-level architecture views, data flow diagrams, and interface designs. Lead the generation of integration artifacts including test plans, conformance matrices, and More ❯

The Senior Linux Systems Administrator will serve as a key member of the Embedded Network Services team, responsible for architecting, deploying, securing, and maintaining enterprise-grade container orchestration environments in support of high-performance computing, AI/ML clusters, and mission-critical DoD systems. This role requires deep expertise in Kubernetes (K8s), Linux systems … will work closely with cybersecurity teams, scientific computing staff, and program management to ensure reliable, secure, and efficient operations for both development and production workloads. As a dynamic systems integrator, SMS offers proven solutions in engineering, operations, cybersecurity, and digital transformation. With expertise in modernizing and optimizing legacy infrastructure and systems, ensuring operational efficiency, and designing, implementing … in McLean, Virginia, with offices and on-site operations at customer locations throughout the United States. For additional information on SMS, visit . Submit your resume today! Responsibilities Linux Systems Administration Perform advanced administration of Red Hat Enterprise Linux (RHEL), CentOS, and Ubuntu systems in both classified and unclassified environments. Manage OS patching, kernel tuning, and performance optimization More ❯

Annapolis Junction, on a very exciting program! In this role you will do many different things such as: Provide support for implementation, troubleshooting and maintenance of Information Technology (IT) systems Manage IT system infrastructure and any processes related to these systems Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all … agency management and internal customers Provide support for the dispatch system and hardware problems and remains involved in the resolution process Configure and manage UNIX, Linux and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and configures network components along with implementing operating systems enhancements to improve reliability and performance Qualifications Must currently … hold an Active TS/SCI and Poly clearance Bachelor's degree, or commensurate experience can be substituted for the degree Minimum of 14 years of experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity is required 6 years of experience with Service Management (ITSM) is required 4 years of experience More ❯