Top Senior System Administrator Jobs

Reposted 14 Days AgoSaved
In-Office
Seal Beach, CA, USA
146K-198K Annually
Senior level
146K-198K Annually
Senior level
Aerospace • Information Technology • Software • Cybersecurity • Design • Defense • Manufacturing
The Senior System Administrator will manage system administration tasks, including system integration, security, and performance monitoring while mentoring teams and providing technical support.
Top Skills: CybersecurityLinuxRhel 8/9Risk Management Framework (Rmf)SolarisVmware Esxi 8/9
2 Days AgoSaved
In-Office
Concord, IN, USA
69K-131K Annually
Senior level
69K-131K Annually
Senior level
Aerospace • Defense
Provide onsite systems administration across Windows, VMware, and Red Hat Enterprise Linux environments. Perform daily data center checks, backups, AD and server administration, troubleshooting, software installs, and work with cybersecurity to meet security requirements. Maintain documentation, provide training, meet DoD certification requirements, and support 24x7 operations with occasional travel (up to 10%).
Top Skills: Active DirectoryBackup And RecoveryDhcpDnsEsxExchangeHpcMecmNasRed Hat Enterprise LinuxSanScriptingVirtualizationVMwareVmware VcenterVmware VsphereWindows ServerWsus
Reposted 2 Days AgoSaved
In-Office
Tucson, AZ, USA
69K-131K Annually
Senior level
69K-131K Annually
Senior level
Aerospace • Defense
Provide IT systems administration in a Microsoft Windows and Linux environment, support factory operations, troubleshoot technical problems, and maintain cybersecurity requirements. Participation in on-call rotation and travel up to 10% required.
Top Skills: Active DirectoryBackup And RecoveryData StorageDhcpDnsMecmWindowsNasRedhat Enterprise LinuxSanScriptingVMwareWsus
2 Days AgoSaved
In-Office
2 Locations
Senior level
Senior level
Software • Consulting
Seek a senior Linux systems administrator/system engineer to manage CentOS/RHEL systems and VMware VMs, support JBoss, storage, networking, security compliance and authentication, script with Shell/Python, administer physical servers and Oracle DBs, and provide 24x7 support. Must hold active TS/SCI with polygraph and Security+ certification. On-site at a secure SCIF in Maryland with occasional customer site presence.
Top Skills: Linux (Centos/Rhel)Security+VMware
Reposted 2 Days AgoSaved
In-Office
Dahlgren, VA, USA
Senior level
Senior level
Information Technology
Provide combat system simulation support, implement network solutions, and maintain accreditation for Government wide area network usage.
Top Skills: Cisco SystemsLinuxWindows
Reposted 2 Days AgoSaved
Remote
USA
Expert/Leader
Expert/Leader
Information Technology • Security • Business Intelligence • Consulting
Seeking a Senior System Administrator with strong expertise in Information Processing, Middleware solutions, and Application Management, requiring significant hands-on experience and a Secret Clearance.
Top Skills: Application DeploymentInformation ProcessingJboss Fusion MiddlewareMiddlewareOperating SystemsProgramming Languages
4 Days AgoSaved
In-Office
2 Locations
92K-167K Annually
Senior level
92K-167K Annually
Senior level
Information Technology • Software
As a Senior System Administrator, you will resolve system access issues, manage user support operations, and ensure system configuration and availability, collaborating with various teams to improve services.
Top Skills: Ai/Ml ToolsAws GovcloudC2S Aws CloudJIRASc2S Aws Secret Region CloudServicenow
Reposted 4 Days AgoSaved
In-Office
Laurel, MD, USA
164K-420K Annually
Senior level
164K-420K Annually
Senior level
Information Technology • Security • Software
The Senior System Administrator supports CNO Capabilities, maintaining operational IT environments, managing hardware installations, and improving workflows.
Top Skills: AWSCloud IntegrationsHypervisorsLinuxNvidia GpusVirtualization Technologies
Reposted 4 Days AgoSaved
In-Office
Ridgecrest, CA, USA
135K-160K Annually
Senior level
135K-160K Annually
Senior level
Aerospace • Professional Services • Defense
The Senior System Administrator will secure, sustain, and optimize complex DoD environments, perform system upgrades, manage security configurations, and ensure compliance with various security standards.
Top Skills: Active DirectoryLinuxPowershellVcenterVMwareWindows Server 2016
5 Days AgoSaved
In-Office
Laurel, MD, USA
168K-420K Annually
Senior level
168K-420K Annually
Senior level
Information Technology • Security • Software
As a Senior System Administrator, you will maintain Windows and Linux servers, implement security patches, manage AWS services, and automate processes. Strong troubleshooting skills and substantial experience are required.
Top Skills: AnsibleAWSBashCloudFormationEc2LambdaLinuxPowershellPythonTerraformWindows Server
5 Days AgoSaved
In-Office
Columbia, MD, USA
Senior level
Senior level
Software • Consulting
The Sr. System Administrator/System Engineer - Linux is responsible for supporting a high viability mission environment, installing, configuring, and maintaining Linux systems, as well as managing JBoss and VMWare environments with a focus on security compliance.
Top Skills: CentosJbossJSONLinuxPythonRhelShellVMwareWildfly
Reposted 6 Days AgoSaved
In-Office
Schenectady, NY, USA
100K-130K Annually
Senior level
100K-130K Annually
Senior level
Software • Consulting
The role involves managing HPC systems, administering Linux servers, utilizing container technologies, and supporting storage systems. The candidate must collaborate with teams and address infrastructure needs while ensuring system optimization.
Top Skills: BashCentosCrayDockerFlexlmInfinibandKubernetesLinuxMySQLNetappOraclePbsPerlPythonRhelVdiVMware
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Reposted 6 Days AgoSaved
In-Office
Norfolk, VA, USA
Senior level
Senior level
Healthtech • Logistics
Provide senior systems administration and PITCO coordination for Navy C4I modernization (CANES/TACNET). Ensure secure, compliant configurations, manage installations, patching, troubleshooting, documentation, schedules, SOPs, and technical risk mitigation to deliver operationally ready systems.
Top Skills: AntivirusCanesFile ServerFirewallIntrusion Detection SystemsNavy C4INetwork Security ToolsTacnetWeb ServerWorkstation
Reposted 7 Days AgoSaved
In-Office
Annapolis Junction, MD, USA
104K-218K Annually
Senior level
104K-218K Annually
Senior level
Information Technology • Consulting • Defense
The System Administrator will manage, maintain, and troubleshoot enterprise IT systems, oversee server and network operations, provide comprehensive support, and ensure security compliance and optimization.
Top Skills: Active DirectoryActive Roles ServerDnsGroup PolicyIdentity ManagementLinuxMs ExchangePrivileged Access ManagementSccmUnixWindows
9 Days AgoSaved
In-Office
Tucson, AZ, USA
69K-131K Annually
Senior level
69K-131K Annually
Senior level
Aerospace • Industrial
Provide IT systems administration support, manage operating systems, install software, ensure cybersecurity, and support data storage operations.
Top Skills: Active DirectoryBackup/Recovery ToolsDhcpDnsExchangeMecmWindowsNasRed Hat Enterprise LinuxSanVMware
10 Days AgoSaved
In-Office
Fort Belvoir, VA, USA
Senior level
Senior level
Agency • Professional Services
The role involves managing Linux servers, supporting Red Hat environments, ensuring system security, and troubleshooting issues. A Top Secret/SCI Clearance is required.
Top Skills: LinuxRed Hat Enterprise LinuxRed Hat SatelliteVirtualization
Reposted 11 Days AgoSaved
In-Office
Westborough, MA, USA
95K-135K Annually
Senior level
95K-135K Annually
Senior level
Pharmaceutical
The Senior System Administrator manages and maintains computerized systems in a cGMP environment, ensuring compliance and supporting users while coordinating with IT and QA.
Top Skills: SAPWindows
Reposted 13 Days AgoSaved
In-Office
Annapolis Junction, MD, USA
140K-185K Annually
Senior level
140K-185K Annually
Senior level
Information Technology • Software • Consulting • Big Data Analytics
The Senior Systems Administrator will support IT systems management, including troubleshooting, maintenance, and system security compliance, while configuring Linux systems and virtualization infrastructure.
Top Skills: AnsibleAWSDevOpsLinuxScripting
Reposted 13 Days AgoSaved
In-Office
Annapolis Junction, MD, USA
168K-250K Annually
Senior level
168K-250K Annually
Senior level
Information Technology • Software • Consulting • Big Data Analytics
The Senior Systems Administrator manages system administration tasks for production and non-production environments, oversees maintenance, troubleshooting, and documentation, while providing guidance to team members.
Top Skills: AnsibleCentosDnsDockerGitlabKubernetesKvmNetappNtpRedhatVMware
Reposted 14 Days AgoSaved
In-Office
Linthicum, MD, USA
Expert/Leader
Expert/Leader
Big Data • Software • Analytics
The Senior System Administrator will oversee the administration and security of Linux systems, manage updates, and ensure operational stability in cloud environments.
Top Skills: Amazon LinuxAWSAzureCentosDockerElasticsearchKubernetesLinuxNagiosNxlogPerlPythonRedhatSyslog
17 Days AgoSaved
In-Office
Fort Meade, MD, USA
150K-175K Annually
Senior level
150K-175K Annually
Senior level
Information Technology • Professional Services • Cybersecurity • Defense
The Senior System Administrator will manage IT systems' implementation, troubleshooting, and maintenance while overseeing daily operations, providing support, and optimizing system performance.
Top Skills: BashPerlPuppetRed Hat LinuxSaltVMware
17 Days AgoSaved
In-Office
Monterey Park, CA, USA
3-3 Annually
Senior level
3-3 Annually
Senior level
Professional Services • Consulting • Energy • Utilities
The Senior Systems Administrator supports PMIS by managing system performance, user access, troubleshooting, training, and system integrations. They ensure alignment with project management processes and work closely with stakeholders for effective use of PMIS.
Top Skills: EbuilderJSONRest ApisSQLTrimble Unity ConstructionXML
Reposted 17 Days AgoSaved
In-Office
Annapolis Junction, MD, USA
140K-185K Annually
Senior level
140K-185K Annually
Senior level
Big Data • Information Technology • Software • Analytics
Senior Systems Administrator responsible for IT systems support, troubleshooting, virtualization management, and scripting for system configurations and dataflows.
Top Skills: AnsibleAWSDevOpsLinuxScripting
Reposted 17 Days AgoSaved
In-Office
Annapolis Junction, MD, USA
168K-250K Annually
Expert/Leader
168K-250K Annually
Expert/Leader
Big Data • Information Technology • Software • Analytics
Responsible for day-to-day systems administration, support of Linux environments, troubleshooting, managing maintenance tasks, and providing technical guidance to the team.
Top Skills: AnsibleCentosDnsDockerGitlabKubernetesKvm VirtualizationNtpRedhat Enterprise LinuxStorage ArraysVMware
18 Days AgoSaved
In-Office
Tucson, AZ, USA
69K-131K Annually
Junior
69K-131K Annually
Junior
Aerospace • Industrial
The Senior System Administrator will manage IT systems in Windows and Linux environments, troubleshoot technical issues, and ensure security compliance.
Top Skills: Active DirectoryAzure DevopsDhcpDnsDockerEsxExchangeGitlabJenkinsKubernetesMecmWindowsOpenshiftRed Hat Enterprise LinuxVMwareVsphereWsus
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