27 linux system administrator jobs at 19 companies in Winter Haven, FL
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Linux Systems Administrator
Tampa, Florida, United States
$98k-$133k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
3+ YOETS/SCI clearance required, 3+ years Linux systems administration experience, DoD 8140/8570 or CompTIA Security+ CE, proficiency with Red Hat/CentOS and Linux services, strong troubleshooting and documentation skills.
Red Hat, CentOS, Apache, Nginx, DNS, DHCP, LDAP, SSL/TLS
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Linux Systems Administrator
Tampa, Florida, United States
$98k-$133k/yr OnsiteFull Time
3+ YOEUS citizen with TS/SCI clearance, 3+ years Linux systems administration experience, DoD 8140/8570 (CompTIA Security+ CE), Red Hat/CentOS administration, patching, security hardening, and strong troubleshooting and documentation skills.
Red Hat, CentOS, Apache, Nginx, DNS, DHCP, LDAP, SSL/TLS
2mo
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System Administrator
Kissimmee, Florida, United States
HybridFull Time
3+ YOE3–5 years in system/network administration; Windows/Linux; virtualization; security controls; SIEM; AD/GP DNS DHCP; CCNA/Security+/CMMC-CCA/CCP or CISSP; U.S. citizenship for DoD work.
Windows Server, Linux, virtualization (VMware/Hyper-V), Microsoft 365, SIEM, endpoint protection, vulnerability scanning, Active Directory, DNS, DHCP, PowerShell, Bash
3w
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Linux Systems Administrator
Orlando, Florida, United States
$100k-$120k/yr OnsiteFull Time
5+ YOEActive Secret clearance, BS and 5+ years system administration experience, RHEL experience, CompTIA Security+ or equivalent, virtualization and network interface configuration skills.
Red Hat Enterprise Linux, Windows, QEMU, Hyper-V, VirtualBox
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System Administrator
Tampa, Florida, United States
OnsiteFull Time
4+ YOEActive Secret clearance, DoD 8140 IAT Level II certification, bachelor\u0002s degree or 4+ years experience, virtualization/Linux/Microsoft certifications, experience with RMF, server and storage administration.
Linux, MS Server, MS Exchange, VMWare vCenter, VIEW VDI, VMware Horizon View, SCCM, ESXi, VMware vSphere, SAN, NAS, ADCS, IIS, Risk Management Framework (RMF)
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Systems Administrator III
Orlando, Florida, United States
$97k-$120k/yr OnsiteFull Time
5+ YOE5+ years Linux systems administration (RHEL/Ubuntu), Bachelor\u0002s in CS or related (or equivalent), proficiency with Python, Bash, Ansible, VMware, Veeam, Atlassian tools, and willingness to work rotating shifts/on-call.
RHEL, Ubuntu, Ansible, Python, Bash, VMware, Veeam, Jira, Confluence, Gitlab, Subversion, PlasticSCM, SAN, NAS, Observium, Lansweeper
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Systems Administrator - Tampa (Hybrid)
Tampa, Florida, United States
$85k-$95k/yr HybridFull Time
5+ YOE5+ years systems administration with SaaS and identity provider experience; SAML/OIDC/SCIM implementation; macOS/Windows/Linux support; scripting and API integration; onboarding/offboarding ownership; able to work hybrid in Tampa and travel up to 25%.
SAML, OIDC, SCIM, REST APIs, webhooks, macOS, Windows, Linux, iPaaS
2mo
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Systems Administrator
Tampa, Florida, United States
OnsiteFull Time
8+ YOEBachelor's in CS or related field; 8+ years in a SysAdmin role; Windows and Linux; security and privacy knowledge; strong problem-solving and communication; independent and team player.
Windows, Linux, Network Security
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Atlassian Administrator
Reading or Tampa
OnsiteFull Time
Penske Truck Leasing: Provides commercial truck leasing, rental, and vehicle maintenance services.
1+ YOEAssociate's degree or 1 year admin experience, 1+ year system engineering/IT support, hands-on Atlassian suite experience, Jira administration, JQL/REST/Groovy, SDLC/agile knowledge, troubleshooting and security awareness.
Jira, Confluence, JQL, REST, Groovy, Oracle, Linux
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Systems Administrator (Intermediate/Senior)
Orlando, Florida, United States
OnsiteFull Time
Link Solutions: Providing IT infrastructure and cybersecurity services to federal agencies.
4+ YOEActive U.S. citizenship and DoD Secret clearance, DoD 8570/8140 IAT Level II (e.g., Security+), 4+ years IT systems administration (8+ for senior), Microsoft 365 and Windows Server experience, backup and virtualization skills.
Active Directory, Microsoft 365, System Center, NetBackup, Veeam, HPE StoreOnce, Windows PowerShell, VMware, ACAS, Nessus, Retina, Linux, Windows Server
3mo
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Manager, Systems Administrator - Sailpoint
Orlando or Atlanta or Montvale or Dallas
OnsiteFull Time
5+ YOE5+ years managing SailPoint IdentityIQ, team management experience, ServiceNow, CyberArk, Active Directory and Linux familiarity, bachelor\u0002s degree or equivalent experience, U.S. work authorization required.
SailPoint IdentityIQ, ServiceNow, CyberArk, Active Directory, Linux
2mo
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Senior Systems Administrator
Orlando, Florida, United States
OnsiteFull Time, Contract
Experience administering servers, backups, patching, security, and incident response; Tier III support; system hardening and cybersecurity compliance; automation opportunities.
Windows Server, Linux, VMware, Backup Software, Storage Management, Patch Management, System Hardening, Automation/Scripting
3w
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Security Systems Administrator
Orlando or Reston or Tampa or United States
RemoteFull Time
2+ YOE2+ years supporting and securing enterprise systems, network and cloud environments; knowledge of hardening, patching, vulnerability and incident response; strong troubleshooting and communication skills.
Windows Server, Linux, Entra ID, Group Policy, Purview, Intune, AWS, Microsoft Azure, Google Cloud Platform
1mo
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Infrastructure Systems Administrator (07151)
Hillsborough County or Citrus County or Hardee County or Hernando County or Lake County or Manatee County or Pasco County or Pinellas County or Polk County or Sarasota County or Sumter County
$110k-$166k/yr OnsiteFull Time
5+ YOEMaintain and administer Windows/Linux systems, AD/IAM, M365, Azure, AWS, SIEM, MDM, virtualization, backup/disaster recovery, scripting, and enterprise monitoring; 5+ years experience (varies by degree) and ability to pass background/polygraph checks.
Active Directory (AD), Identity and Access Management (IAM), Microsoft 365 (M365), Microsoft Azure, Microsoft Entra ID, Amazon Web Services (AWS), Security Information and Event Management (SIEM), Mobile Device Management (MDM), Enterprise Storage Area Network (SAN), Network File System (NFS), Fibre Channel, VMware vSphere ESXi, VMware NSX, VMware Workspace ONE, Red Hat, Microsoft Exchange, Mac OS X, Windows Server 2019+
2mo
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Enterprise Systems Administrator
Atlanta or Austin or Houston or Dallas or Miramar or Orlando or Tallahassee or West Palm Beach or Fort Lauderdale or Phoenix or Charlotte
HybridFull Time
5+ YOEManage Windows servers and cloud platforms; monitor security; patch management; SCCM/SCOM; AD/Entra ID; on-call; hybrid work.
Microsoft Windows, Azure, Active Directory, Entra ID, SCOM, SCCM, PowerShell, Linux, MacOS, IIS, SharePoint, SQL, Networking (TCP/IP, DNS, DHCP)
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Sr. Systems Engineer | Florida | Cleared Systems Administrator
Orlando, Florida, United States
$86k-$170k/yr OnsiteFull Time
3+ YOEActive Top Secret clearance with CI polygraph eligibility, IAT‑Level II (Security+ or equivalent), Windows/Linux and AD administration, classified infrastructure and RMF/STIG experience.
Microsoft Windows, Linux, Active Directory, Group Policy Object, VMware NSX, vSAN, Horizon, ARIA, NetApp, Dell VxRail, McAfee E-Policy Orchestrator, Trellix Endpoint Security, Microsoft Deployment Toolkit, IBM Rational DOORS, Jama Connect, Polarion, MATLAB, Simulink, IBM Rational Rhapsody, Cameo Systems Modeler, PTC Integrity, OpenSSL, EJBCA, Dogtag, step-ca, Ansible, PowerShell, Bash, Python, Service Central, JIRA, Confluence, Aria Operations
2w
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Information Systems Security Officer (41555)
Orlando, Florida, United States
OnsiteFull Time
6+ YOEActive DoD Secret clearance, 6+ years cybersecurity experience (or 4+ with graduate degree; 10+ without degree), ISSO/RMF experience, system administration (Windows/Linux), and assessment/hardening tool knowledge.
Microsoft Windows, Linux, SCAP Compliance Checker, ACAS, Nessus, eMASS, Cisco
2mo
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VCF Platform Engineer 1
Omaha or Saint Louis Park or Denver or Englewood or Orlando or Kansas City or Albuquerque or Portland or Salem or Pittsburgh or Austin or Dallas or Fort Worth or San Antonio or Vienna or Olympia or Columbia or St. Paul or Harrisburg or Pennington or Woodcliff Lake or Phoenix or Folsom
OnsiteFull Time
3+ YOEMinimum 3 years in infrastructure operations/virtualization or systems administration; hands-on VMware vSphere and ESXi host/cluster management; Linux and Windows Server administration; scripting/automation with PowerCLI, Python, or Ansible; familiarity with IaC and datacenter concepts.
SDDC Manager, vSphere, vSAN, NSX, PowerCLI, Python, Ansible, ESXi, Linux, Windows Server
2d
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AI Implementation Specialist II
Tampa, Florida, United States
RemoteFull Time
3+ YOE3+ years in IT, systems administration, integration, or automation, including 1+ year supporting production automations. Requires API, automation, Zendesk, AWS, Linux, Git, Jira, Python or JavaScript, and clear written English.
Anthropic Claude API, n8n, Zapier, Make, Microsoft Power Automate, Zendesk, AWS EC2, AWS S3, AWS IAM, AWS Lambda, AWS CloudWatch, Linux, SSH, Git, Jira, Python, JavaScript, Node, REST APIs, JSON, webhooks, OAuth, Pinecone, Microsoft Entra ID, Microsoft Graph API, SSO, Yardi Voyager, Microsoft SharePoint, Microsoft 365
1mo
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Senior Systems Engineer
Natick or Providence or Tysons or West Hartford or Disney Springs or King of Prussia or Paramus or Raleigh or Boston
$110k-$140k/yr HybridFull Time
Experienced infrastructure engineer with networking, security, hardware deployment, server and OS administration (Windows, MacOS, Linux/Ubuntu, Android), virtualization, SD-WAN, MDM, EDR, ability to travel, and on-call availability.
EDR, MDM, Microsoft Windows, MacOS, Android, Ubuntu, Linux, SD-WAN, WiFi, virtualization
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