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68 infrastructure administrator jobs at 51 companies in Buena Park, CA

2w
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Lead Infrastructure Administrator
El Segundo or Burbank or North Hollywood or Chatsworth or Wisconsin or Nebraska
$126k-$158k/yr HybridFull Time
Golden Pet Brands
Golden Pet Brands: Creating a world where pets live longer, healthier lives, from their very first meal.
5+ YOE2+ MgmtRequires 5–7+ years of IT infrastructure experience, 2–3+ years in technical leadership, AA/AS degree or equivalent, California driver's license, and expertise in networking, cloud, cybersecurity, and enterprise infrastructure.
Microsoft 365, Entra, Microsoft Intune, Azure, Google Workspace, Microsoft Entra ID, VMware, Hyper-V, HP Morpheus, HRIS, IAM, MDM, RMM, MDR, RBAC, MFA, SaaS, ITSM, PCI, CCPA, GDPR
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3w
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Infrastructure & Systems Administrator
El Segundo, California, United States
$80k-$100k/yr OnsiteFull Time
Space Kinetic
Space Kinetic: Privately held dual-use space technology startup building one-to-many payload deployment systems for national-security space operations.
3+ YOERequires 3–7 years supporting IT infrastructure or enterprise systems; Windows Server, Linux, Microsoft 365, networking, virtualization, backups, scripting, and cybersecurity experience. Degree optional with substantial experience.
Windows Server, Linux, Ubuntu, Rocky Linux, Proxmox, Microsoft 365, Microsoft Entra ID, Microsoft Intune, Microsoft Exchange Online, Microsoft SharePoint, PowerShell, Bash, Docker, Kubernetes, Python, Ansible, TCP/IP, VLANs, VPNs, CMMC
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1w
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Network & IT Infrastructure Administrator
Los Angeles, California, United States
$70k-$100k/yr OnsiteFull Time
SBT Global, Inc.
SBT Global, Inc.: South Korean IT consulting providing SAP, ERP, ITO, data, AI, and digital-transformation services to businesses.
3+ YOEBachelor's degree and 3+ years in network administration, infrastructure operations, or IT support; experience with Cisco networking, Windows Server, Active Directory, troubleshooting, and Microsoft Office required.
LAN/WAN, WLAN, VPN, Cisco Routers, Cisco Switches, Cisco Firewalls, Cisco Wireless Infrastructure, Windows Server, Active Directory, Microsoft Office Suite, Microsoft Excel, Microsoft Outlook, Microsoft PowerPoint, Microsoft Word, Cisco Meraki, Microsoft Entra ID, Microsoft 365, IPSec, SSL VPN, IDS/IPS, VoIP, Unified Communications
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4d
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IT Infrastructure Administrator
United States or Missouri or Austin or Boston or Chattanooga or Chicago or Dallas or Denver or Houston or Jefferson City or Kansas City or Los Angeles or Madison or Milwaukee or Minneapolis or Nashville or Oakland or Omaha or Phoenix or Providence or Springfield or Saint Louis or Washington
$45k-$142k/yr RemoteFull Time
Husch Blackwell
Husch Blackwell: U.S. full-service law firm providing legal counsel, litigation, regulatory, and transactional services to business and institutional clients.
3+ YOEHigh school diploma or GED required; 2-year degree preferred. Requires 3+ years of relevant experience, Windows Server and Azure/AWS knowledge, PowerShell/Bicep/batch scripting, and Active Directory, DNS, DHCP, and networking familiarity.
Windows Server, Azure, AWS, PowerShell, Bicep, Active Directory, DNS, DHCP, Azure Virtual Desktop (AVD), Microsoft Exchange Online, Microsoft Teams, Teams Phones, Microsoft Intune, Microsoft OneDrive for Business, ITIL
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4w
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Network & Infrastructure Administrator
Rancho Dominguez, California, United States
OnsiteFull Time
IDEMIA
IDEMIA: Global leader in biometric and security technologies.
Installs and maintains operating systems, servers, virtualisation, network devices and backup systems; troubleshoots issues, follows change management and documents activities; supports governance and security standards.
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2mo
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Infrastructure Deployment Administrator
Costa Mesa, California, United States
$129k-$171k/yr FieldFull Time
Anduril Industries
Anduril Industries: Defense technology developing AI-powered autonomous military systems.
3+ YOE3+ years implementing and supporting IP networks (BGP/OSPF); hands-on experience with Cisco/Arista and Palo Alto; familiarity with Linux/Windows/VMware/cloud; scripting/automation experience; able to travel ~40%, lift 40 lbs, and obtain Secret clearance.
Lattice OS, BGP, OSPF, VRFs, VLANs, VXLAN, STP, EtherChannel, IOS XE, NXOS, EOS, Palo Alto, Panorama, NGFW, Red Hat Enterprise Linux, Windows Server (2022, 2025), VMware (vSphere), VMware ESXi, Azure, AWS, GCP, Linux KVM, Hyper-V, Docker, Python, Nornir, Jinja, Ansible, Terraform
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3w
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Systems Administrator- Engineering & Infrastructure
Santa Fe Springs or Los Angeles
$90k-$120k/yr OnsiteFull Time
Votaw Precision Technologies
Votaw Precision Technologies: Privately held precision manufacturer serving aerospace, defense, space, maritime, and industrial programs with machining and complex assemblies.
3+ YOEBachelor's degree or equivalent experience; 3+ years writing SQL queries and stored procedures; reporting tools experience; systems administration expertise; U.S. person status and ability to obtain a security clearance.
FlexLM, Microsoft GCC High, Entra, Microsoft Intune, Mobile Device Management (MDM), CATIA, NX, Windchill, Teamcenter, AWS GovCloud, SQL, Tableau, Microsoft Power BI, SQL Server Reporting Services (SSRS), Epicor ERP, NIST 800-171, CMMC, ITAR
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3mo
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Project Administrator
Los Angeles, California, United States
$35-$45/hr OnsiteFull Time
Zephyr Rail
Zephyr Rail: Rail engineering and construction-management firm serving freight railroads and commuter and transit agencies.
3+ YOEThree+ years in project administration, document control, or supporting construction management in rail or infrastructure.
MS Office, Procore, Bluebeam
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3w
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Network Infrastructure Engineer
El Segundo, California, United States
$125k-$180k/yr OnsiteFull Time
Oceanus Marine Technologies
Oceanus Marine Technologies: Private maritime technology building software and systems for commercial vessel operators.
3+ YOERequires 3+ years designing, implementing, and securing production networks, hands-on Linux administration, hardware provisioning, industrial deployments, physical-layer expertise, and complex infrastructure troubleshooting.
Linux, Starlink, VSAT, UniFi Network, MikroTik RouterOS, ZEDEDA, LTE, SOC 2, ISO 27001, 401(k)
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1w
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Infrastructure Engineer
Corona or Norco
$115k-$135k/yr OnsiteFull Time
Bowhead
BowheadNYSE: BOW: Federal government contracting and professional services division of UIC.
4+ YOEBachelor's degree in a relevant field, 4 years of system administration experience, 3 years installing patches and managing system updates, IAT Level II certification, and Secret clearance required.
Microsoft Windows, Linux, Unix, Microsoft Office Suite, firewalls, anti-virus, intrusion detection services
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1mo
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System Administrator
Los Angeles, California, United States
$60-$70/hr HybridContract
Cosm
Cosm: Immersive entertainment, media, and technology operating shared-reality venues for sports, entertainment, art, and education.
5+ YOE5+ years infrastructure/system administration experience (media/VFX preferred). Expert Windows/Mac/Linux administration, system imaging, scripting (PowerShell/Bash/Python), render farm and storage management, AWS and monitoring tools.
Windows, Mac, Linux, WDS, WSUS, SCCM, ECM, PDQ Deploy, PowerShell, Bash, Python, HP Anyware, Parsec, Splashtop, Jump Desktop, Nuke, Resolve, Cinema 4D, Houdini, Thinkbox Deadline, AWS Deadline Cloud, RenderMan, LogicMonitor, Grafana, S3, EC2, VPC, Intune, Apple Business, JAMF Pro, Cisco Prime, Arista CloudVision, Aruba Central, Ruckus SmartZone
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1w
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Network Administrator
Rancho Cucamonga, California, United States
$122k-$159k/yr OnsiteFull Time
Cucamonga Valley Water District
Cucamonga Valley Water District: California public water district providing drinking water, wastewater, and related services to Rancho Cucamonga and neighboring communities.
5+ YOERequires 5 years of enterprise systems and LAN/WAN administration experience, a bachelor's degree, CCNA or CCNP, California Class C driver's license, and expertise in networks, cloud infrastructure, Windows servers, security, and Microsoft O365.
SIEM, IPS, NIST, CIS, ISO 27001, COBIT, PCI DSS, Microsoft O365, Active Directory, Windows, LAN, WAN, Intranet, Internet, VMware, Palo Alto, Microsoft
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3w
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Capital Infrastructure Projects Professional
Irvine, California, United States
$137k-$150k/yr FieldFull Time
Jacobs Solutions Inc.
Jacobs Solutions Inc.NYSE: J: Global professional services firm for infrastructure and mission-critical projects.
2+ YOEMaster's in Civil Engineering or related (or Bachelor's + additional experience), 2+ years relevant experience, knowledge of traffic/transportation infrastructure, construction contract administration, and project documentation.
Microsoft Excel, VBA, Microsoft Office, Procore, Bluebeam, ArcGIS, Caltrans CEM forms, Primavera P6
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3mo
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IT System Administrator
Commerce, California, United States
$55k-$59k/yr OnsiteFull Time
Wesley Health Centers
Wesley Health Centers: Nonprofit federally qualified health center serving underserved Los Angeles County residents with healthcare and supportive services.
3+ YOE3+ years Windows server administration; associate degree or equivalent experience; strong AD, EHR, and IT infrastructure skills.
Windows Server, Active Directory, Office 365, NextGen EHR, EDR, Care Sentry, Welligent, Casewatch, antivirus, backup, monitoring
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18h
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Cloud System Administrator
Los Angeles, California, United States
HybridFull Time
Salt Productions
Salt Productions: Salt Productions is a private experiential production agency creating in-person brand experiences and events for clients worldwide.
1+ YOEIT systems administration experience, cloud infrastructure support, networking fundamentals, shell and Python scripting, professional Mac, Windows, or Linux administration, and Google Cloud Platform familiarity.
Google Cloud Platform (GCP), Compute Engine, IAM, Cloud Storage, VPC, Cloud Monitoring, Ansible, Terraform, Grafana, Python, Mac, Windows, Linux, TCP/IP, DNS, VPN, firewalls, routing, SaaS
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3d
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Senior Application Administrator
Los Angeles, California, United States
$85k-$130k/yr OnsiteFull Time
Commonwealth Business Bank
Commonwealth Business BankOTC Markets: CBBI: Private, business-focused community bank serving mid-sized businesses and individuals with deposits, lending, and related banking services.
7+ YOESeven years of IT infrastructure, enterprise software administration, and application support experience in banking or financial services required. Bachelor's degree in a related field preferred; Windows, SQL, governance, and SOX knowledge required.
Windows OS, Windows Server, SQL, SAP BusinessObjects, FIS banking system
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1mo
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IT System Administrator
Los Angeles or El Segundo or Hawthorne
$80k-$100k/yr OnsiteFull Time
Freeform
Freeform: AI-native metal 3D-printing manufacturer serving aerospace, defense, energy, semiconductor, automotive, and other industrial customers.
1+ YOE1+ years system administration experience with on-prem infrastructure, Windows/Linux administration, Active Directory/Azure AD, endpoint management (Intune,GPO), networking, AV support, lifting ability, and security-first mindset.
Kubernetes (k8s), Ansible, PowerShell DSC, AWS, Azure, GCP, Grafana, Prometheus, Python, Bash, PowerShell, Siemens Teamcenter, MATLAB, Visual Studio, Active Directory, Azure AD / Entra ID, Microsoft Intune, Group Policy (GPOs), SAN
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1d
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System Administrator II
Colorado Springs or Irvine or Denver or Indianapolis or Grand Rapids or Lexington or Los Angeles or Louisville or Texas or San Francisco or United States
$105k-$115k/yr OnsiteFull Time
Trace3
Trace3: Private IT consulting provider serving enterprise and commercial organizations with AI, cloud, data, and cybersecurity services.
3+ YOEBachelor's degree or equivalent experience; 3–5 years of system administration experience; Windows/Linux, enterprise infrastructure, cybersecurity, cloud, automation, and compliance experience; Secret clearance eligibility; DoD 8570 IAT Level II certification.
Windows, Linux, Active Directory, DNS, DHCP, Group Policy, VMware vSphere, ESXi, Hyper-V, Azure, AWS, GCC High, PowerShell, Bash, Python, Ansible, SCCM/MECM, Chef, Puppet, STIG, SCC, IAVA, NIST 800-53, FedRAMP, CMMC, RMF
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1w
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CMDB Administrator
Costa Mesa or Coppell
$110k-$146k/yr OnsiteFull Time
Auto Club Enterprises
Auto Club Enterprises: Provider of insurance, travel, financial, and roadside assistance services.
3+ YOERequires 3–5 years of CMDB, ITSM, or infrastructure experience; ServiceNow or BMC Helix proficiency; reconciliation, normalization, data modeling, troubleshooting, documentation, and governance skills.
BMC Helix CMDB, BMC Discovery, SCCM, Flexera, MS-SQL, ServiceNow, PowerShell, Python
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3w
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IT Database Administrator Sr.
Irvine, California, United States
$104k-$174k/yr HybridFull Time
Panasonic Avionics Corporation
Panasonic Avionics Corporation: Private aerospace manufacturer supplying airlines with in-flight entertainment, connectivity systems, and technical services.
5+ YOERequires a related bachelor's degree and/or Microsoft SQL certifications, 5+ years of Microsoft SQL Server administration and enterprise distributed computing experience, and strong PowerShell, T-SQL, Azure, VMware, and database infrastructure skills.
Microsoft SQL Server, SQL Server 2019, Azure SQL, PowerShell, T-SQL, VMware, Microsoft Windows Server, IaaS, PaaS
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