40 linux system administrator jobs at 22 companies in Madeira, OH
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Linux System Administrator
West Chester, Ohio, United States
OnsiteFull Time
8+ YOERequires 8–15 years of Linux IT experience, an associate or bachelor's degree in IT or computer systems, expertise in Rocky, CentOS, RHEL, and Ubuntu, and eligibility for a U.S. Top Secret clearance.
Linux, Rocky, CentOS, RHEL, Ubuntu, Exchange, Microsoft OneDrive, Microsoft Intune, JIRA, NinjaOne, GitLab, Mattermost, WiFi, VPN, VMware ESXi, SCEPTRE
3w
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Linux System Administrator
Beavercreek, Ohio, United States
$105k-$115k/yr OnsiteFull Time, Temporary
5+ YOE5+ years administering enterprise Linux environments; bachelor\u0002s in CS or related; experience with Red Hat/Ubuntu, virtualization, automation (Ansible,Bash,Python), security hardening, and DoD compliance.
Red Hat Enterprise Linux, Rocky Linux, Ubuntu, Active Directory, LDAP, Bash, Python, Ansible, VMware vSphere, ESXi, SSH, SCP, TCP/IP, DNS, DHCP, Git, Bitbucket, Bamboo, GitLab, CI/CD, STIGs, CIS Benchmarks
2mo
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IT System Administrator/
Wright Patterson AFB, Ohio, United States
OnsiteFull Time
5+ YOEBachelor's degree plus 5+ years IT/system administration experience; Windows/Linux server administration, Active Directory, patching, virtualization, networking, STIG implementation, vulnerability remediation, and enterprise user support.
Windows, Linux, Active Directory, STIG
1mo
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Linux Systems Administrator (Temporary)
Beavercreek, Ohio, United States
$75k/yr OnsiteFull Time
5+ YOEAdminister enterprise Linux systems (RHEL, Rocky, Ubuntu), perform patching/hardening, automation with Ansible/Python/Bash, user management, troubleshooting, and security compliance; DoD 8140/CompTIA Security+ required; bachelor’s and 5+ years experience.
Red Hat Enterprise Linux (RHEL), Rocky Linux, Ubuntu, Bash, Python, Ansible, Active Directory, LDAP, VMware vSphere, SSH, SCP, TCP/IP, DNS, DHCP, ESXi, Git, Bitbucket, Bamboo, GitLab, CI/CD, STIGS, CIS Benchmarks
1w
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System Administrator
Beavercreek or Dayton
OnsiteFull Time
7+ YOERequires 7+ years administering classified systems, Top Secret clearance, DoD IAT Level II certification, Windows/Linux, networking, patching, cybersecurity, and air-gapped environment experience.
Windows, Linux, WSUS, SCCM, Red Hat Satellite, TACLANE, Cisco, GitLab, Jenkins, RSA Authentication Manager, RSA tokens, Splunk, ELK, Tenable Nessus, NetApp, Synology, Wireshark, Snort, PRTG, SCAP, SCC Tool, OpenSCAP, Samba, NFS, Veeam, VMware vSphere, Active Directory
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Senior Linux Systems Administrator
Huntsville or Dayton or Albuquerque or Simi Valley or Sunrise or Herndon or Arlington or Germantown or Melbourne
$91k-$139k/yr OnsiteFull Time
8+ YOEBachelor's degree or equivalent experience; 8–12 years of IT infrastructure experience, including 6+ years administering enterprise Linux. Requires Ansible, Bash or Python, VMware, storage, security hardening, and U.S. person status.
Oracle Linux, Red Hat Enterprise Linux, Ubuntu, Canonical Landscape, VMware vSphere, OCI, AWS, Azure, Red Hat Satellite, Foreman, YubiKey, PKI, Smartcard, Duo, Okta PAM, NIST SP 800-171, CMMC 2.0, DISA STIG, CIS, SELinux, AppArmor, auditd, Ansible, Terraform, Puppet, Chef, Bash, Python, SAN, NAS, iSCSI, NFS, LVM, VMware ESXi, VMware vCenter, FlexLM, DNS, DHCP, LDAP, Kerberos, NTP, Prometheus, Grafana, Zabbix, Docker, Podman, Kubernetes, AWS GovCloud, Azure Government
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Mid-Level System Administrator
Wright-Patterson Air Force Base, Ohio, United States
$100k-$125k/yr OnsiteFull Time
3+ YOERequires 3–5 years of systems or network administration, Windows/Linux, Active Directory, switches and routers, DoD IAT Level II certification, U.S. citizenship, and active TS/SCI clearance.
Microsoft Windows, Linux, Active Directory, Group Policy, TCP/IP, IPv4, 802.1Q, Ethernet, DNS, DHCP, Cisco, VMware, Hyper-V, PowerShell, Bash, Python, Security Technical Implementation Guides (STIGs)
2mo
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Sr. System Administrator
Dayton, Ohio, United States
OnsiteFull Time
8+ YOEActive Top Secret/SCI clearance, U.S. citizenship, 8+ years systems administration experience, 3+ years supporting SCI/SAP, Windows/Linux administration, RMF/DISA STIG experience, automation and virtualization skills, and required certifications (one or more listed).
ACAS, Nessus, HBSS, Splunk, SCAP Compliance Checker, tcpdump, netstat, ss, traceroute, ping, journalctl, systemctl, Kubernetes, OpenShift, Docker, Podman, Helm, Kustomize, CSI, CNI, Ansible, Terraform, Bash, PowerShell, Python, VMware, vSphere, ESXi, KVM, Active Directory, LDAP, IdM, DNS, DHCP, Group Policy Objects (GPOs)
2mo
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Sr. System Administrator
Dayton, Ohio, United States
OnsiteFull Time
8+ YOEActive Top Secret clearance with SCI eligibility, U.S. citizenship, 8+ years systems administration experience, expertise with Windows/Linux, virtualization, containers, cloud, automation, RMF/DISA STIG, and senior technical leadership.
ACAS, Nessus, HBSS, Splunk, SCAP Compliance Checker, tcpdump, netstat, ss, traceroute, ping, journalctl, systemctl, Kubernetes, OpenShift, Docker, Podman, Helm, Kustomize, CSI, CNI, Ansible, Terraform, Bash, PowerShell, Python, VMware, vSphere, ESXi, KVM, Active Directory, LDAP, Group Policy Objects (GPOs), DNS, DHCP, SELinux, FApolicyd, NFS, SSH, Git, RMF, DISA STIG
4d
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System Administrator 2 (Cloud), Digital Technology Solutions
Cincinnati, Ohio, United States
$81k/yr OnsiteFull Time
6+ YOEBachelor's degree in IT, computer science, information systems, or related field, or six years' relevant experience. Requires enterprise IT experience, cloud administration, and advanced GCP, Terraform, Ansible, GitHub, Kubernetes, and Docker experience.
Google Cloud Platform (GCP), Amazon Web Services (AWS), Microsoft Azure, Active Directory, DNS, Terraform, Ansible, GitHub, Kubernetes, Docker, Google Cloud Infrastructure Manager, AWS CloudFormation, Azure Resource Manager, Ruby, Python, PowerShell, Chef, Puppet, Salt, Jenkins, Apache Maven, YAML, JSON, Slack, Wiz, Informatica, ServiceNow, PAM, Nutanix AHV, VMware, Linux, Windows, LDAP, SQL, F5 BIG-IP, AWS Certified Solutions Architect, GCP Cloud Architect, Microsoft Certified Azure Administrator, Solution Architect, Nutanix Certified Professional, VCP, RHCS, RHCSA, MCSE, MCSA, SNCP, CCSP, SNIA, CCIE, CCNP, BCNE
2w
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Systems Administrator
Dayton, Ohio, United States
OnsiteFull Time
5+ YOERequires 5 years of systems administration experience, CompTIA Security+, Linux or Windows expertise, DoD compliance knowledge, IT support skills, and an IT-related bachelor's degree or equivalent experience.
Linux, Windows, TCP/IP, DNS, DHCP, FTP, SSH, IP CONFIG, RMF, STIGs, Active Directory, VLANs, VoIP, SAP, Atlassian
3mo
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IT Systems Administrator III
Cincinnati, Ohio, United States
OnsiteFull Time
7+ YOESenior-level infrastructure administrator with Linux, Kubernetes, and Azure experience; 7+ years of systems administration; strong scripting and security focus.
Linux, Kubernetes, Azure, PowerShell, Bash, RBAC, Identity and Access Management
2w
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Systems Administrator
Dayton, Ohio, United States
OnsiteFull Time
Requires 5 years of systems administration experience, Security+, active DoD Top Secret/SCI clearance with SAP eligibility, IT-related bachelor's degree or equivalent experience, and Linux or Windows expertise.
4d
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Systems Administrator/Principal Systems Administrator (AHT)
Beavercreek or Dayton or Ohio
$76k-$141k/yr OnsiteFull Time
3+ YOERequires DoD Top Secret/SCI clearance, IAT Level II certification, AWS or virtualization experience, and Windows or Linux administration. Degree and experience requirements vary by level.
AWS, Ansible, Docker, Podman, Python, Bash, PowerShell, GitOps, GitLab, Jenkins, ArgoCD, Kubernetes, Istio, Nexus, Harbor, Windows, Linux, virtual machines
4d
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Senior Systems Administrator - 557148
Wright-Patterson Air Force Base, Ohio, United States
OnsiteFull Time
Requires active Secret clearance, CompTIA Security+ or DoD-aligned certification, systems administration experience across Windows/Linux and virtualization, cybersecurity compliance, troubleshooting, integration, documentation, and change management.
VMware ESX, Active Directory, LDAP, Windows Server 2019, Windows Server 2022, Windows Server 2025, Linux RHEL, DISA STIGs, PKI, COMSEC, RMF, AFRL DREN, NIPRNet
4d
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Systems Administrator 4
Dayton, Ohio, United States
OnsiteFull Time
10+ YOERequires active TS/SCI with CI polygraph, DoD 8570 IAT/IAM Level II certification, RMF experience, SOA expertise, Linux and Oracle knowledge, and complex systems troubleshooting skills.
Platform as a Service (PaaS), Service Oriented Architecture (SOA), GitLab, Continuous Integration/Continuous Delivery (CI/CD), UNIX, Windows, Linux, CentOS, Oracle, AWS, Azure, GCP, Xacta
4d
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Systems Administrator/Principal Systems Administrator (AHT)
Beavercreek or Dayton
$76k-$141k/yr OnsiteFull Time
3+ YOERequires STEM degree or equivalent experience, 3+ years administering Windows or Linux, AWS or virtualization experience, active DoD Top Secret/SCI clearance, and IAT Level II certification.
AWS, Windows, Linux, Ansible, Docker, Podman, Python, Bash, PowerShell, GitOps, GitLab, Jenkins, ArgoCD, Kubernetes (K8s), Istio, Nexus, Harbor, RMF, STIG
4w
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z/VM Mainframe System Programmer
Cincinnati, Ohio, United States
$99k-$115k/yr RemoteFull Time
8+ YOE8+ years IBM z/VM administration, 6+ years guest provisioning (z/OS,z/VM,z/Linux,z/VSE), high-availability production experience, HCD/IOCDS and IBM Z hardware knowledge, strong troubleshooting and implementation skills.
IBM z/VM, z/OS, z/Linux, z/VSE, CA/Broadcom suite of VM products, DCSS, NSS, Hardware Configuration Definition (HCD), Input/Output Configuration Data Set (IOCDS)
2w
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Information Systems Administrator
Dayton, Ohio, United States
$119k-$130k/yr OnsiteFull Time
Experience administering and securing Windows or Linux servers; CompTIA Security+ or equivalent DoD IAT Level II certification; cybersecurity compliance, vulnerability scanning, NIST frameworks, communication skills, and active Secret clearance.
Windows, Linux, DISA STIGs, CIS Benchmarks, Tenable, Nessus, RMF, NIST 800-53, NIST 800-171
4w
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z/VM Mainframe System Programmer
Cincinnati, Ohio, United States
$99k-$115k/yr RemoteFull Time
8+ YOE8+ years z/VM administration experience, 6+ years guest provisioning for z/OS,z/Linux,z/VSE; strong troubleshooting and IBM Z hardware/I/O knowledge.
z/VM, z/OS, z/Linux, z/VSE, RSCS, TCPIP SSL, VTAM, DCSS, NSS, CA/Broadcom suite of VM products, IOCDS, HCD
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