HiringCafe
Join our community

141 systems administrator jobs at 105 companies in Oklahoma

2w
Save
Mark Applied
Hide
Systems Administrator Lead
Oklahoma City or Midland or Texas
OnsiteFull Time
Diamondback Energy
Diamondback EnergyThe Nasdaq Global Select Market: FANG: Public independent oil and natural gas developing unconventional onshore reserves in the Permian Basin.
10+ YOERequires 10 years of IT infrastructure and systems administration experience, or 8 years plus a bachelor's degree, with enterprise infrastructure leadership and expertise in cloud, security, virtualization, storage, and identity.
Azure, Microsoft 365, ITIL, Zero Trust, E-Verify
Job PostingView all
1mo
Save
Mark Applied
Hide
Senior Systems Administrator
Tulsa, Oklahoma, United States
OnsiteFull Time
MIRATECH Corporation
MIRATECH Corporation: MIRATECH is a private industrial emissions-control manufacturer serving power generation, energy infrastructure, marine, industrial, and OEM customers.
7+ YOE7+ years IT support/systems administration with Level 3 escalation experience; hands-on Windows Server, AD, Microsoft 365, Azure/Entra ID, Intune, networking, virtualization, endpoint security; strong communication and on-call willingness.
Windows Server, Active Directory, DNS, DHCP, Group Policy, Hyper-V, Microsoft 365, Azure, Entra ID, Intune, EDR, AV, MFA, VMware, PowerShell, Bash, Python, Terraform, Ansible, NinjaOne, ConnectWise Automate, ConnectWise Manage, IT Glue, VPNs, Wi-Fi, switches, routers, firewalls
Job PostingView all
1mo
Save
Mark Applied
Hide
Systems Administrator - Bank Operations
Oklahoma City, Oklahoma, United States
OnsiteFull Time
MidFirst Bank
MidFirst Bank: Privately owned bank providing personal and commercial financial services.
Provide system administration and technical support for bank operations, monitor and resolve incidents, administer user access, and support data transfers and manipulations.
Microsoft Excel
Job PostingView all
2w
Save
Mark Applied
Hide
Systems Administrator - Level I
Norman, Oklahoma, United States
$64k-$79k/yr OnsiteFull Time
AttainX
AttainX: Women-owned federal IT consulting firm delivering software, cloud, cybersecurity, AI, and engineering services to U.S. government agencies.
4+ YOESystems administration and technical support experience with enterprise hardware, software, networks, switches, and security procedures. Onsite Norman work and moderate public trust clearance required; U.S. citizenship required.
Windows, Linux, UNIX, VPN, Microsoft Certified: Windows Server Hybrid Administrator Associate, Managing Modern Desktop (MD101), Red Hat Server Administrator (RHSA), CISCO Professional Level Certification, CCDP, CCNP
Job PostingView all
3w
Save
Mark Applied
Hide
Junior Systems Administrator
Norman, Oklahoma, United States
HybridFull Time
PCI Energy Solutions
PCI Energy Solutions: Enterprise energy software provider helping utilities, power producers, and traders manage trading, operations, optimization, and settlement.
Experience managing IT infrastructure; knowledge of Windows, Linux, network administration, virtualization, AWS Cloud, cybersecurity, and troubleshooting. Flexible availability for 24/7 on-call rotation required.
Windows, Linux, AWS Cloud, Microsoft Certified: Windows Server Hybrid Administrator, SOC 1, SOC 2, FISMA
Job PostingView all
1mo
Save
Mark Applied
Hide
IT Systems Administrator
Tulsa, Oklahoma, United States
OnsiteFull Time
Pryer Aerospace
Pryer Aerospace: Private aerospace manufacturer serving commercial, defense, and space programs with structural assemblies, machined parts, and sheet-metal fabrication.
3+ YOE3+ years systems administration experience with Windows Server, Active Directory, Microsoft 365, cybersecurity knowledge, CMMC/NIST SP 800-171 familiarity, virtualization, backup and incident response skills.
Windows Server, Active Directory, Group Policy, Microsoft 365, Hyper-V, VMware, CMMC, NIST SP 800-171, PowerShell, Office 365, SQL, Dell Compellent, DELL/EMC, Microsoft Office
Job PostingView all
4w
Save
Mark Applied
Hide
Systems Administrator
Muskogee, Oklahoma, United States
$26/hr OnsiteFull Time
City of Muskogee
City of Muskogee: Municipal government serving Muskogee, Oklahoma residents through public safety, infrastructure, planning, parks, and other city services.
2+ YOEAssociate degree or equivalent education and experience, plus 2+ years of server and PC troubleshooting in networked environments; requires Oklahoma Class D driver's license and strong infrastructure, security, and communication skills.
Windows Server, Active Directory, Group Policy, DNS, DHCP, Microsoft 365, Microsoft Exchange Online, Microsoft Teams, Microsoft SharePoint, Microsoft Entra ID, Azure Active Directory, VMware, PowerShell, Windows 10, Windows 11, Microsoft Exchange Server, Microsoft Office, Barracuda, VoIP, SAN, NAS, SSL, Microsoft Azure
Job PostingView all
2w
Save
Mark Applied
Hide
Systems Administrator
Oklahoma City, Oklahoma, United States
OnsiteFull Time
Business Imaging Systems, Inc.
Business Imaging Systems, Inc.: Privately held Oklahoma technology helping organizations digitize documents, modernize IT infrastructure, and deploy AI solutions.
5+ YOEHigh school diploma or GED required; bachelor's degree in computer science, information technology, or related field preferred. Requires strong computer skills and advanced Windows Server, network infrastructure, and virtualization knowledge.
Windows Server, VMware, Active Directory, LAN, WAN, internet, anti-virus, anti-spam
Job PostingView all
5d
Save
Mark Applied
Hide
IT, Systems Administrator
Oklahoma City, Oklahoma, United States
OnsiteFull Time
Family & Children's Services
Family & Children's Services: Nonprofit Certified Community Behavioral Health Clinic providing mental-health, substance-use, crisis, and family services to Oklahomans.
3+ YOEHigh school diploma or equivalent and at least 3 years of IT experience required. Requires Windows, networking, virtualization, cloud, scripting, troubleshooting, documentation, and communication skills; CompTIA Network+, Security+, and ITIL Foundation preferred.
Windows, VMware, Hyper-V, AWS, Azure, Google Cloud, PowerShell, Bash, Python, TCP/IP, DNS, DHCP, LAN, WAN
Job PostingView all
2mo
Save
Mark Applied
Hide
IT Systems Administrator III
Tulsa, Oklahoma, United States
OnsiteFull Time
T.D. Williamson
T.D. Williamson: T.D. Williamson is a private pipeline-services and equipment serving operators of onshore and offshore energy infrastructure.
5+ YOEMaintain and support enterprise systems, virtualization, and cloud infrastructure; Windows Server, Active Directory, Azure/AWS, VMware/Hyper-V, PowerShell; Bachelor's in CS/IS + 5+ years IT support or equivalent experience; WAN/SD-WAN and Cisco experience.
Windows 10, Windows 11, Windows Server 2008, Windows Server 2012, Windows Server 2016, Windows Server 2019, Windows Server 2022, Windows Server 2025, Active Directory, Microsoft Office 365, Microsoft Teams, Microsoft Exchange, Microsoft SCCM, Microsoft Intune, Azure Arc, Azure, EntraID, Azure Automation, VMware, Hyper-V, PowerShell, AWS, Cisco, WAN, SD-WAN
Job PostingView all
1w
Save
Mark Applied
Hide
Power Systems Administrator
Ada, Oklahoma, United States
OnsiteFull Time
Chickasaw Nation
Chickasaw Nation: Federally recognized tribal government providing services to its citizens.
Bachelor's degree in a related field, knowledge of storage technologies and major operating systems, ability to architect and implement operating standards, and required background checks, driver's license, and gaming credentials.
IBM i, AIX, Linux
Job PostingView all
2w
Save
Mark Applied
Hide
SYSTEMS ADMINISTRATOR/ HELPDESK SPECIALIST
Tulsa, Oklahoma, United States
$75k-$85k/yr OnsiteFull Time
Custom Glass Solutions
Custom Glass Solutions: American manufacturer of laminated, tempered, and other engineered vehicle glass for transportation, construction, agriculture, and public-safety customers.
3+ YOERequires 3–5 years of IT support or systems administration experience, Windows and network administration, directory services, cloud platforms, PowerShell, security tools, and strong troubleshooting and communication skills.
Windows Server, Active Directory, Microsoft Entra ID, Group Policy Objects (GPOs), Single Sign-On (SSO), Microsoft 365, Google Workspace, AWS, Azure, TCP/IP, DNS, DHCP, VLANs, VPN, PowerShell, Microsoft Intune, FeneVision ERP, SQL Server Reporting Services (SSRS), Crystal Reports
Job PostingView all
2mo
Save
Mark Applied
Hide
Sr. Unix Systems Administrator
Fort Meade or Crystal City or Mechanicsburg or Montgomery or Oklahoma City or Ogden
OnsiteFull Time
Amyx
Amyx: Government contractor providing technology, cybersecurity, engineering, and management services on federal programs.
5+ YOEMinimum 5 years Unix systems administration experience, IAT Level II certification, Unix OS certification, DoD Secret clearance, experience with RHEL/Solaris/HP-UX/AIX, scripting (Ansible,Bash,Perl,PowerShell) and DISA security tools.
RHEL, Solaris, HP-UX, AIX, Apache Tomcat, Apache HTTP Server, Remote X Server, HyperVisor, VMWare, NetScaler, ACAS, Splunk, HBSS, Trellix, Enterprise Security Posture System (ESPS), Linux Clustering, Solaris Cluster, Ansible, Bash, Bourne, Korn, Perl, PowerShell, Network Attached Storage (NAS), Storage Area Networks (SANs), ticketing system
Job PostingView all
2w
Save
Mark Applied
Hide
Information Systems and Network Administrator
Sand Springs, Oklahoma, United States
$20/hr OnsiteFull Time
City of Sand Springs
City of Sand Springs: Public municipal government serving Sand Springs residents with utilities, public safety, infrastructure, parks, courts, and city services.
High school diploma or GED, valid Oklahoma driver's license, knowledge of Microsoft Office, operating systems, networking, Active Directory, and Exchange, with hardware and software troubleshooting skills.
Microsoft Office, Active Directory, Exchange
Job PostingView all
1mo
Save
Mark Applied
Hide
System Administrator
Oklahoma City, Oklahoma, United States
$27-$46/hr OnsiteFull Time
Qureos
Qureos: AI-powered recruitment platform connecting talent with employers.
Proven system/network administration experience with Windows environments, strong security and backup knowledge, troubleshooting skills, and effective communication with non-technical staff.
Windows
Job PostingView all
1mo
Save
Mark Applied
Hide
Systems Admin II
Tulsa, Oklahoma, United States
OnsiteFull Time
TulsaConnect
TulsaConnect: Family-owned Oklahoma telecommunications provider delivering broadband, voice, mobile, and business connectivity to rural communities.
Provide tier‑2 technical support, administer physical and virtual infrastructure, perform data center installations and cabling, participate in 24/7 on‑call rotation.
Hyper-V, Windows Server, Active Directory, Remote Desktop Services, Group Policy, Office 365, Azure, IPSEC VPN
Job PostingView all
3w
Save
Mark Applied
Hide
Application Server Administrator/Windows System Administrator
Oklahoma City, Oklahoma, United States
$68k-$142k/yr HybridFull Time
CACI
CACINYSE: CACI: Provider of specialized IT and mission-critical government services.
5+ YOEBachelor's degree in IT or equivalent experience, 5 years of experience, WebLogic, Microsoft systems administration, IIS, firewall configuration, database administration, and segmented network experience required.
Oracle WebLogic, Microsoft Systems Administration, IIS, MS SQL Server, Oracle Database, PostgreSQL, Red Hat Linux, Tomcat, JBoss, Oracle Cloud Infrastructure (OCI), Oracle Data Guard, Oracle RAC, Oracle Client, Splunk
Job PostingView all
3w
Save
Mark Applied
Hide
Application Server Administrator/Windows System Administrator
Oklahoma City, Oklahoma, United States
$68k-$142k/yr HybridFull Time
CACI
CACINYSE: CACI: Provider of specialized IT and mission-critical government services.
5+ YOEBachelor's degree in IT and 5 years of experience or equivalent. Requires WebLogic, Microsoft systems administration, IIS, firewall configuration, and database administration experience.
Oracle WebLogic, Microsoft Systems Administration, IIS, MS SQL Server, Oracle Database, PostgreSQL, RedHat Linux, Tomcat, JBoss, Oracle OCI, Oracle Data Guard, Oracle RAC, Oracle Client, Splunk
Job PostingView all
1mo
Save
Mark Applied
Hide
System Administrator
Oklahoma City, Oklahoma, United States
OnsiteFull Time
Franklin Electric
Franklin ElectricNASDAQ: FELE: Public U.S. manufacturer of water, fuel, and electricity pumping, treatment, control, and monitoring systems for global customers.
2+ YOEInstall, configure, and maintain workstation OS and IT hardware; support plant IT systems; use ServiceNow; develop shop floor applications with C# and SQL; bachelor's degree and 2+ years experience required.
ServiceNow, C#, SQL, Microsoft
Job PostingView all
3w
Save
Mark Applied
Hide
(Linux Administrator) Sr. Specialist, Systems Administration (42157)
Tulsa, Oklahoma, United States
OnsiteFull Time
L3Harris Technologies
L3Harris TechnologiesNYSE: LHX: Global aerospace and defense technology innovator and manufacturer.
6+ YOERequires a bachelor's degree and 6 years of relevant experience, master's degree and 4 years, or 10 years without a degree; 8 years in Red Hat Linux, networking, shell scripting, troubleshooting, and cybersecurity; active Secret clearance.
Red Hat Enterprise Linux (RHEL), Microsoft Windows, TCP/IP, NIST 800-53, DISA STIGs, LDAP, VMware, Citrix, Centrify, Virtual Desktop Infrastructure (VDI), Active Directory, Satellite, Ansible, Kickstart, NetApp, CommVault, Samba, NFS
Job PostingView all

Explore Jobs

Expand Your Job Search