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154 infrastructure administrator jobs at 119 companies in California

3d
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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: Premium veterinarian-informed pet food and nutrition brand portfolio.
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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1mo
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AWS Infrastructure Administrator
San Francisco, California, United States
$140k-$150k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
10+ YOE10+ years experience designing and managing AWS data infrastructure; proficiency with S3, Glue, EMR, Redshift, Athena, Lambda, Kinesis, RDS, Python and SQL; IaC (Terraform/CloudFormation); Spark, Kafka, Airflow; monitoring and security.
S3, Glue, EMR, Redshift, Athena, Lambda, Kinesis, RDS, Python, SQL, Scala, Terraform, CloudFormation, Apache Spark, Kafka, Apache Airflow, AWS Step Functions, CloudWatch, Datadog, Prometheus, Grafana
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2w
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IT Infrastructure Administrator
San Jose, California, United States
$115k-$130k/yr HybridFull Time
Frank Rimerman
Frank Rimerman: Provides accounting, tax, and advisory services to innovative businesses.
3+ YOE3+ years supporting enterprise Windows Server, Microsoft 365/Entra ID, VMware, backup solutions, networking (Cisco/Meraki), PowerShell automation, and LogicMonitor; bachelor\u0002s degree or equivalent experience; relevant industry certifications preferred.
Microsoft Active Directory, Group Policy, DNS, DFS, File Services, Microsoft 365, Exchange Online, Entra ID (Azure AD), OAuth, VMware vSphere, VxRail, Cohesity, AvePoint, Zerto, PKI, Mimecast, SPF, DKIM, DMARC, Microsoft Defender for Office 365, Abnormal Security, Cato SASE, LogicMonitor, PowerShell, Meraki, Cisco Umbrella/OpenDNS
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1w
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Infrastructure & Systems Administrator
El Segundo, California, United States
$80k-$100k/yr OnsiteFull Time
Space Kinetic
Space Kinetic: Developing propellant-free systems for deploying payloads in space.
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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2w
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Network & Infrastructure Administrator
Rancho Dominguez, California, United States
OnsiteFull Time
IDEMIA
IDEMIA: Identity and security solutions using biometrics and cryptography.
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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1mo
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Infrastructure Deployment Administrator
Costa Mesa, California, United States
$129k-$171k/yr FieldFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
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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Network Infrastructure Administrator
Ridgecrest, California, United States
$80k-$100k/yr OnsiteFull Time
Saalex
Saalex: Provides engineering, IT, and mission support for defense agencies.
3+ YOE3+ years supporting enterprise WAN/LAN/BAN, routing/switching/wireless, STIG/system hardening, patching, and vulnerability remediation; strong troubleshooting and communication skills.
Cisco, Aruba, Juniper, Palo Alto, STIG, DISA, NCDOC
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4d
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Systems Administrator II, Infrastructure Operations
San Diego, California, United States
$85k-$105k/yr OnsiteFull Time
Invivoscribe
Invivoscribe: Providing precision oncology diagnostics and molecular testing services.
2+ YOEBachelor’s degree in computer science or related field, typically 2+ years administering enterprise IT infrastructure, with experience in virtualization, storage, backup, recovery, directory services, email, and access administration.
virtualization platforms, enterprise storage systems, backup systems, disaster recovery systems, directory services, email platforms, monitoring and alerting tools
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1w
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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: Manufacturing precision components and assemblies for aerospace and defense
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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4w
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Infrastructure Engineer
San Jose, California, United States
$110k-$160k/yr OnsiteFull Time
Monolithic Power Systems
Monolithic Power SystemsNasdaq: MPWR: Provides energy-efficient integrated power semiconductor solutions for electronics.
Experience in DevOps/Infrastructure engineering supporting 24/7 production; Linux/Windows administration; Python, Bash, Ansible scripting; OpenStack/VMware and storage experience; strong problem-solving and communication.
Python, Bash, Ansible, Linux, Windows, API, OpenStack, VMware, Nimble, Pure, NetApp, Docker, Kubernetes, AWS, Azure, GCP, Prometheus, ELK stack
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1mo
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Infrastructure Engineer
Costa Mesa, California, United States
$109k-$120k/yr HybridFull Time
El Pollo Loco
El Pollo LocoNASDAQ: LOCO: Quick-service restaurant chain specializing in Mexican-style grilled chicken.
3+ YOEBachelor's in CS/related and 3+ years infrastructure administration; strong AWS and SQL skills; VMware, networking, AD/M365, endpoint management, scripting (PowerShell/Python/Bash), and colo/cloud migration experience.
AWS, EC2, Lambda, Aurora, RDS, DynamoDB, VPC, Transit Gateway, S3, IAM, Cost Explorer, CloudFormation, Terraform, Bedrock, VMware vSphere, VMware vCenter, NSX, Cohesity, Meraki, Palo Alto, Prisma, Active Directory, Microsoft Azure AD, Microsoft Entra ID, OneLogin, Microsoft Office 365, Microsoft Exchange Online, Microsoft Teams, Microsoft SharePoint, Microsoft Intune, Mimecast, Ivanti, Atera, SolarWinds HCO, PowerShell, Python, Bash, SQL, CI/CD
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3w
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IT Infrastructure Engineer
Petaluma or Denver
$120k-$145k/yr HybridFull Time
Spheros Environmental
Spheros Environmental: Environmental consulting firm providing integrated science-based sustainability solutions.
8+ YOE8+ years in IT support/systems administration in Microsoft 365 environments; expertise with endpoint security, networking, Azure/on‑prem infrastructure, documentation, and incident response.
Entra, Intune, Veeam, VMware vCenter, Windows Server, Azure Files, Cloudflare One, Unifi, Cisco, SentinelOne, KnowBe4 Defend, Deep Seas, Microsoft 365, Microsoft Defender for Endpoint, Cloudflare WARP, AWS EC2, Jira
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1mo
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Senior Infrastructure Engineer
Carmel-by-the-Sea, California, United States
HybridFull Time
Alter Domus
Alter Domus: Provides administrative and accounting services for alternative investment funds.
7+ YOE7+ years enterprise infrastructure experience with virtualization, Linux and Windows administration, DR, scripting, cloud (Azure/AWS), and Level 3 support skills.
VMware, vSphere, ESXi, vCenter, HA/DRS, Dell PowerFlex, Zerto, Windows Failover Clustering, Azure, AWS, PowerShell, Shell, Linux
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2mo
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Core Infrastructure System Administrator (System Administrator 2) - Fremont, CA
Fremont, California, United States
$100k-$150k/yr HybridFull Time
M.C. Dean
M.C. Dean: Design-build and systems integration for complex, mission-critical infrastructure.
2+ YOEEducation/experience combination required (Bachelor's +2 yrs, Associate +6 yrs, or HS +8 yrs). Requires system administrator experience, 2+ years programming/administrating Physical Access Control Systems, team leadership experience, Windows patching/Active Directory knowledge, basic VLANs/routing, Security+ / CASP / CISSP certification, and MS Off...
Microsoft Excel, Microsoft Word, Microsoft Visio, Microsoft PowerPoint, Windows, Linux, Microsoft Active Directory, VLANS, Physical Access Control Systems
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1w
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Senior Infrastructure Architect
Boston or Santa Barbara or Seattle
$165k-$206k/yr HybridFull Time
Sonos: Develops and sells wireless home audio systems and speakers.
7+ YOERequires 7+ years designing complex infrastructure, a bachelor's degree or equivalent, AWS, IaC, containers, Linux and Windows administration, communication skills, and office work at least 3 days weekly.
Amazon Web Services (AWS), Terraform, Puppet, Ansible, Docker, Kubernetes, Helm, Linux, Windows, Akamai, Python, Git, Jenkins, SQL, Snowflake, Vagrant, Pulumi, Microsoft Azure, Jira
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2mo
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Core Infrastructure System Administrator (System Administrator 3)- Fremont, CA
Fremont, California, United States
$115k-$158k/yr OnsiteFull Time
M.C. Dean
M.C. Dean: Designs and builds cyber-physical systems for mission-critical facilities.
5+ YOESystem administration experience, Windows/Linux server management, AD and patching, 2+ years PACS programming, Security+/CASP/CISSP, networking/VLANs knowledge, team leadership experience, flexible schedule, up to 25% travel.
Windows, Linux, Active Directory, Microsoft Excel, Microsoft Word, Microsoft Visio, Microsoft PowerPoint, VLANs, Physical Access Control Systems
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HPC Systems Administrator (Hardware & Infrastructure Operations)
Stanford, California, United States
$150k-$172k/yr OnsiteFull Time
Stanford University
Stanford University: A private research university providing higher education and research.
3+ YOEManage and maintain large-scale HPC hardware and infrastructure, perform diagnostics and root-cause analysis, collaborate with data center teams, automate provisioning and monitoring; bachelor's degree plus experience required.
Linux, Slurm, Lustre, InfiniBand, DCIM, NVIDIA H200, x86
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2mo
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Project Administrator
Los Angeles, California, United States
$35-$45/hr OnsiteFull Time
Zephyr Rail
Zephyr Rail: Engineering design and construction management for national rail infrastructure.
3+ YOEThree+ years in project administration, document control, or supporting construction management in rail or infrastructure.
MS Office, Procore, Bluebeam
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1w
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Network Infrastructure Engineer
El Segundo, California, United States
$125k-$180k/yr OnsiteFull Time
Oceanus Maritime Technologies: Building the operating platform for the modern maritime world.
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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2w
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System Administrator
Los Angeles, California, United States
$60-$70/hr HybridContract
Cosm
Cosm: Operates immersive entertainment venues and develops shared reality technology.
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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