17 senior it systems administrator jobs at 13 companies in Fairfield, CA
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Senior IT Systems Engineer
San Francisco, California, United States
$130k-$180k/yr OnsiteFull Time
8+ YOERequires 8+ years administering enterprise IT systems and SaaS applications, with expertise in IAM, MDM, Mac OS, device lifecycle management, Jira administration, workflow automation, problem-solving, and documentation.
IAM, Identity and Access Management (IAM), MDM, Mac OS, Jira, Zero Trust Access, EDR, Endpoint Detection and Response (EDR)
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Senior IT System Admin
Fremont, California, United States
$86k-$108k/yr OnsiteFull Time
5+ YOEBachelor's degree in computer science, information technology, or related field and 5+ years in system administration or IT infrastructure, with Windows, Linux, Active Directory, security, monitoring, automation, and project experience.
Windows, Linux, Active Directory, Microsoft Exchange, Microsoft Office 365, IIS, Apache, SAN, NAS, Zabbix, SolarWinds, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, AI, AIOps, OKRs
1w
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IT Operations & Systems Specialist
Marlborough or Hayward
$96k-$126k/yr OnsiteFull Time
5+ YOERequires Microsoft 365 and Active Directory administration, Windows endpoint support, networking, troubleshooting, security alert interpretation, documentation, communication, and independent project ownership.
Microsoft 365, Active Directory, Entra ID, Windows, SIEM, EDR, ITDR, Intune
2mo
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IT Systems Engineer
Washington or San Francisco
$171k-$214k/yr OnsiteFull Time
5+ YOE5+ years IT systems/infrastructure experience; hands-on IAM and SaaS administration (Okta, Jamf, Azure/GCC High); scripting (Python, Powershell, bash); familiarity with FedRAMP High/IL6/CMMC/NIST; active Secret or TS/SCI clearance.
Okta Workflows, Okta, GCC High, Microsoft Azure Gov, Opal, Slack, Jamf, Jira, Terraform, Python, Powershell, bash, SAML, OIDC, SCIM, FedRAMP High, IL6, CMMC 2.0, NIST 800-53, NIST 800-171
1mo
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Electronic Security IT System Administrator (System Administrator 3)- Fremont, CA
Fremont, California, United States
$115k-$158k/yr OnsiteFull Time
5+ YOESystem administrator with 5+ years progressive experience; Windows/Linux/AWS skills, physical access control experience preferred, team management experience, Windows patching/Active Directory knowledge, networking and database familiarity.
Windows, Linux, Red Hat, CentOS, AWS, Docker, Kubernetes, SQL, Cassandra, Mongo, Redis, Windows Active Directory, VLANS, Microsoft Excel, Microsoft Word, Visio, PowerPoint
1mo
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Electronic Security IT System Administrator (System Administrator 3)- Fremont, CA
Fremont, California, United States
$115k-$172k/yr OnsiteFull Time
5+ YOESystem administrator experience with Windows/Linux servers, Active Directory, patching, VLANs/routing, Physical Access Control Systems, team leadership, and proficiency with Microsoft Office; certifications in Windows, AWS, Linux, databases, and networking preferred.
Microsoft Excel, Microsoft Word, Microsoft Visio, Microsoft PowerPoint, Docker, Kubernetes, AWS, Red Hat, CentOS, Linux, Windows 10, Windows 11, Windows Server, Active Directory, SQL, Cassandra, Mongo, Redis, VLANs
4w
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IT System Administrator / Security Analyst
Fremont, California, United States
$125k-$150k/yr OnsiteFull Time
5+ YOE5+ years systems administration experience with 2+ years security focus; Windows/Linux, Active Directory, virtualization, SIEM, vulnerability management, incident response, and strong communication skills.
Active Directory, DNS, DHCP, Group Policy, VMware, Hyper-V, Microsoft 365, Azure, AWS, SIEM, EDR, vulnerability scanners, firewalls, TCP/IP, VLANs, VPNs
2w
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IT Engineer
United States or Denver or San Francisco or Alaska or Arkansas or Delaware or Hawaii or Maine or Mississippi or New Mexico or Oklahoma or South Dakota or Vermont or Wisconsin or Rhode Island
$96k-$125k/yr RemoteFull Time
3+ YOE3+ years in systems administration, IT engineering, or senior IT support; expertise in Okta, macOS administration, automation, Zero Trust, and IT security fundamentals.
Okta Workflows, Jamf, macOS, Okta, Single Sign-On (SSO), Privileged Access Management (PAM), Robotic Process Automation (RPA), Zero Trust, SOC2, HIPAA, HITRUST, API keys, Data Loss Prevention (DLP), OpenAI, AWS, Google Gemini
3d
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Database Administrator (0597U) Berkeley IT, #88217
Berkeley, California, United States
$116k-$168k/yr OnsiteFull Time
7+ YOERequires 7–10+ years of DBA experience, 5+ years in enterprise environments, proficiency in two database systems, SQL, 4+ years of scripting, leadership skills, and a bachelor's degree or equivalent experience.
SQL Server Always On Availability Groups, Oracle, AWS, Azure, TDE (Transparent Data Encryption), IAM, RDS, Azure SQL, OCI, Terraform, Ansible, Flyway, Liquibase, Python, PowerShell, Bash, MSSQL Server, PostgreSQL, MySQL, PERL, ServiceNow, Jira, SolarWinds, Salesforce, PeopleSoft, Java, Ruby, IIS, Apache
2d
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Database Administrator (0597U) Berkeley IT, #88217
Berkeley, California, United States
$116k-$168k/yr OnsiteFull Time
7+ YOERequires 7–10+ years of DBA experience, 5+ years in enterprise environments, proficiency with two major database systems, SQL, 4+ years of scripting, leadership, troubleshooting, communication, and a bachelor's degree or equivalent.
SQL Server Always On Availability Groups, Oracle, AWS, Azure, RPO, RTO, TDE (Transparent Data Encryption), IAM, GDPR, HIPAA, SOX, RDS, Azure SQL, OCI, Terraform, Ansible, Flyway, Liquibase, Python, PowerShell, Bash, NoSQL, MSSQL Server, PostgreSQL, MySQL, PERL, ServiceNow, Jira, SolarWinds, Salesforce, PeopleSoft, Java, Ruby, IIS, Apache
2w
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IT Engineer
San Francisco, California, United States
$112k-$154k/yr OnsiteFull Time
Decagon: Conversational AI platform for automated customer support.
5+ YOE5-7 years IT systems/identity/endpoint experience, hands-on Okta and Mac MDM administration, scripting in Python or Bash, SaaS platform administration, and strong troubleshooting and documentation skills.
Okta, Google Workspace, Slack, Notion, Rippling MDM, Rippling, Workato, Python, Bash, Claude, SSO, SAML, OIDC, SCIM, AWS, GCP, Azure, Terraform, Zapier, Tines
1w
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Senior IT Operations Engineer (Dublin, CA)
Dublin, California, United States
$115k-$135k/yr HybridFull Time
7+ YOERequires 7+ years in IT systems engineering, enterprise support, cloud administration, or AV design; macOS and Windows fleet management; Okta, networking, SOC 2, scripting, partner support, and AV expertise.
Microsoft Intune, Entra ID, Windows Autopilot, BitLocker, Defender for Endpoint, Kandji, PowerShell, Bash, Python, Okta, Google Workspace, Microsoft 365, AWS, Jira, Confluence, VPN, 802.1X, Zoom, Microsoft Teams, Webex, Adobe Premiere, DaVinci Resolve, Audition, Audacity, Pro Tools, OBS, vMix, Wirecast, ATEM Mini, Asana, Linux, FileVault, Gatekeeper, XProtect, SCIM, SOC 2, FCRA, GLBA, ITIL, MDM, SSO, MFA, ZTNA, HVAC, UPS
1mo
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Corporate IT Engineer
San Francisco, California, United States
$140k-$186k/yr OnsiteFull Time
Experience owning corporate IT lifecycle, identity and device management (SSO, MDM, directory), internal support, and scripting/automation (Python, Bash). Security-minded with systems administration experience in fast-growing companies.
Okta, Google Workspace, Jamf, Intune, SSO, MDM, Python, Bash, NVIDIA DGX SuperPOD
1mo
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IT Support Technician II (Onsite)
San Francisco, California, United States
$33-$35/hr OnsiteFull Time
5+ YOE5+ years system administration experience, experience with M365/Intune/EntraID, Active Directory, Salesforce and MSP collaboration; college degree preferred; strong troubleshooting and communication skills.
M365, Intune, EntraID, Salesforce, Microsoft Teams, SharePoint, Vonage, Active Directory, Microsoft Office Suite/365, Windows
1mo
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IT Support Technician II (Onsite)
San Francisco, California, United States
$33-$35/hr OnsiteFull Time
5+ YOE5+ years system administration experience, M365/Intune/EntraID/cloud infrastructure experience, strong troubleshooting, MSP and Salesforce experience preferred, college degree in CS preferred.
MS Teams, Sharepoint, Salesforce, Vonage, Microsoft Office 365, Active Directory, M365, Intune, EntraID
3w
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IT Endpoint Engineer
Denver or Petaluma
$100k-$125k/yr HybridFull Time
8+ YOE8+ years IT support/systems administration with Microsoft 365; experience with Entra, Intune, application packaging; strong documentation and customer-service skills.
Entra, Cloudflare One, Cloudflare WARP, Veeam, VMware vCenter, Windows Server, Azure Files, SentinelOne, Microsoft Intune, PatchMyPC, NinjaOne, PowerShell, Jamf Connect, Apple Business Manager, macOS, Jira, Power Automate, Azure Functions, Entra Lifecycle Management, Microsoft 365, Active Directory
3w
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IT Infrastructure Engineer
Petaluma or Denver
$120k-$145k/yr HybridFull Time
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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