19 infrastructure administrator jobs at 14 companies in Seffner, FL
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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+
1mo
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Webber - Project Administrator - Infrastructure Management
Tampa, Florida, United States
OnsiteFull Time
0.083+ YOEHigh school diploma or GED, 1–3 months of related experience or training, English communication skills, moderate to high MS Office proficiency, math skills, and a valid driver's license for occasional required travel.
Microsoft Word, Microsoft Excel, Microsoft Outlook, Microsoft Copilot
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Systems Administrator, Tech Infrastructure
Saint Petersburg or Denver or Southfield
$60k-$100k/yr OnsiteFull Time
0+ YOETranslate functional specs, document interfaces, analyze and validate requirements, produce reports, and support system development; bachelor’s degree in accounting, business administration, or computer and information science required.
1w
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Network Administrator (Infrastructure)
Hillsborough County, Florida, United States
$100k-$150k/yr OnsiteFull Time
4+ YOEPlan, design, maintain, and troubleshoot enterprise Cisco networks; 4+ years enterprise network experience; CCNP preferred; high school diploma/GED required; Florida driver license may be required; strong troubleshooting and communication skills.
Cisco WLC, Cisco Catalyst (IOS), Nexus Series, Cisco ISE, IPSec, EIGRP, DNS, DHCP, VMware, VMware vSphere, SNMP, Wireshark, NetScout, Network Performance Monitor
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System Administrator, Tech Infrastructure
Denver or Saint Petersburg
$60k-$100k/yr HybridFull Time
0.5+ YOETranslate functional specs, document and validate systems, elicit and document user requirements; bachelor’s degree and several months IT experience required.
2w
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Infrastructure/Systems Administration
Melbourne or Sarasota
$75k-$158k/yr OnsiteFull Time
3+ YOETS/SCI with polygraph required. Bachelor’s degree or equivalent and 3+ years relevant experience. Proficient with Windows, Dell hardware, Outlook, networking; Security+ desired.
Windows, Dell, Microsoft Outlook, Linux
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Webber - Project Administrator - Infrastructure Management
Tampa or Houston or United States or Canada
OnsiteFull Time
0+ YOEHigh school diploma/GED, 1-3 months related experience or training, moderate to high skill with Microsoft Word/Excel/Outlook, basic math ability, valid driver license for occasional travel, and English proficiency.
Microsoft Word, Microsoft Excel, Microsoft Outlook, Microsoft Copilot, BIM
2mo
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GIS Administrator
Middleton, Florida, United States
OnsiteFull Time
Proficiency with GIS/CAD software, GIS data management, QA/QC, and related tasks; AutoCAD and ESRI ArcGIS experience; valid driver’s license required.
ESRI ArcGIS/ArcMap, AutoCAD, AutoCAD Civil/Survey, Infrastructure, Raster, AutoCAD Map, GPS
2w
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Cloud Infrastructure Engineer
Raleigh or New York or Jacksonville or Atlanta or Washington or Charlotte or Orlando or Tampa
RemoteFull Time
4+ YOE4+ years cloud administration experience, strong Azure architecture and migration skills, Azure CLI/PowerShell, Active Directory and Windows Server experience, Ansible, vulnerability scanning, bachelor’s or equivalent experience.
Azure, Microsoft Active Directory, Windows Server 2016, Windows Server 2019, Windows Server 2025, Azure CLI, PowerShell, Azure PowerShell, Azure Portal, Ansible, Intune, SCCM, Nessus
2w
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Cloud Infrastructure Engineer
Charlotte or Orlando or Tampa or Jacksonville or Raleigh or New York or Washington or Atlanta
RemoteFull Time
4+ YOE4-7 years cloud administration experience, strong Azure architecture and migration skills, bachelor\u0002s in IT or equivalent, Azure/AD/Windows Server/PowerShell/Ansible experience, vulnerability scanning knowledge.
Azure, Azure CLI, PowerShell, Azure PowerShell, Azure Portal, Intune, SCCM, Microsoft Active Directory, Windows Server 2016, Windows Server 2019, Windows Server 2025, Ansible, Nessus
5d
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System Administrator
Tampa or Fayetteville
OnsiteFull Time
5+ YOEActive U.S. Secret clearance and citizenship; bachelor's degree or equivalent; 5+ years administering Windows Server, Linux, virtualization, storage, and enterprise infrastructure; DoD IAT Level II certification and STIG/RMF experience.
Microsoft Windows Server, Linux, Active Directory, Group Policy, DNS, DHCP, RMF, STIG, Microsoft Windows, CompTIA Security+ CE
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Systems Admin, Infrastructure
Clearwater, Florida, United States
OnsiteFull Time
2+ YOE2-4 years system administration experience with Windows/Linux, vSphere (multiple ESXi clusters), Citrix XenApp/XenDesktop, Active Directory, PowerShell/VBScript, IIS, and familiarity with M365/Azure; bachelor's in technology preferred.
Windows, Linux, VSphere 6, VSphere 6.5, VSphere 6.7, ESXi, Active Directory, PowerShell, Vbscript, Batch, Citrix XenApp, Citrix XenDesktop, M365, azure, Rightfax, IIS, Cisco UCS, Hyland Onbase, PRTG Network Monitor
1mo
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Network Operations Senior System Administrator
Tampa, Florida, United States
$85k-$95k/yr OnsiteFull Time
10+ YOEMust possess SECRET clearance, 10+ years related experience, BA/BS or equivalent, infrastructure and VMware expertise, PowerShell/VBScript scripting, Windows server and Active Directory administration, and meet DoD 8570 IAT II requirements.
Microsoft Windows Server, Operating Systems (OS), Virtual Environments, VMware, ESXi, vCenter, VxRail, VSAN, PowerShell, VBScript, Microsoft Active Directory, Microsoft Exchange, Microsoft SharePoint, Microsoft SQL, SCCM, Windows 10, DISA STIGs, IAVAs
3mo
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Network Infrastructure and Functional Systems Administrator and Engineering Support (Pipeline)
Tampa, Florida, United States
OnsiteFull Time
3+ YOENetwork admin with 3+ years, DoD cybersecurity knowledge, secret clearance required, CAC/installation access required, Bachelor's or equivalent experience.
TCP/IP, DNS, DHCP, VLANs, VPNs, Routing protocols (OSPF/EIGRP), Cisco, Juniper, Firewall, DoD STIGs, ACAS, RMF, ServiceNow, Remedy
2w
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Infrastructure/Systems Administration
Melbourne or Sarasota
$75k-$158k/yr OnsiteFull Time
3+ YOETS/SCI with poly required; bachelor’s or equivalent and 3+ years relevant experience; proficiency with Windows, Dell hardware, Microsoft Outlook, and network communications; Security+ desired; strong written/verbal communication and customer service skills.
Windows, Microsoft Outlook, Linux, Dell
3w
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Jesuit High School System Administrator
Tampa, Florida, United States
$65k-$80k/yr OnsiteFull Time
Manage and maintain school data infrastructure, Microsoft 365, Active Directory/Entra ID, account provisioning, security compliance, and provide Level II/III help desk support.
Microsoft 365, Active Directory, Entra ID, Mosyle
1mo
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Systems Administrator Engineer - Cloud & Automation
Milwaukee or Kansas City or Rolling Meadows or Naperville or Scottsdale or Raleigh or Jersey City or Newark or Norristown or Plano or Alpharetta or Sarasota or United States
$63k-$138k/yr HybridFull Time
7+ YOE7+ years in cloud, automation, and infrastructure engineering; IaC (Bicep/ARM/Terraform) for Azure; Microsoft Graph API and PowerShell expertise; experience with Azure services, Entra ID, Microsoft 365 automation; US work authorization required.
Bicep, ARM templates, Terraform, Microsoft Graph API, PowerShell, Microsoft Azure Automation, Microsoft Logic Apps, Microsoft Azure Functions, Microsoft Azure, Microsoft Entra ID, Microsoft 365, Microsoft Exchange Online, Microsoft Teams, Microsoft SharePoint, Windows Server, Microsoft Active Directory, Group Policy, DNS, DHCP, IIS, Microsoft Fabric, Microsoft Power BI, Git, Azure DevOps, GitHub Actions, Infrastructure as Code (IaC)
3w
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Engineer, Platform Operations
Tampa, Florida, United States
HybridFull Time
2+ YOE2+ years operations engineering experience, cloud and infrastructure administration experience, familiarity with Ansible, Terraform, Azure, and platform monitoring, strong communication and troubleshooting skills.
Ansible, Nexus, GitLab, GitHub, Wiz, New Relic, Solarwinds, Terraform, IACTriage, Azure
1d
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Senior Corporate Security Engineer
Bellevue or Menlo Park or New York City or Washington or Denver or Westlake or Chicago or Lake Mary or Clearwater or Gainesville
$166k-$195k/yr HybridFull Time
5+ YOERequires 5+ years in information security spanning security engineering, systems administration, and enterprise infrastructure; cloud, AI tooling, identity systems, vulnerability management, and automation experience.
Okta, OpenAI, Claude, Cursor, Google Cloud Platform
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