Top Systems Administrator Jobs in Los Angeles, CA

Administer and maintain core insurance enterprise systems, manage change requests and vendor SLAs, support UAT and incident resolution, ensure data privacy compliance, and maintain operational and security documentation.

Install, configure, and support Epic client applications (Hyperspace, Interconnect, print services) across desktops, mobile, and virtual platforms. Monitor performance and security, troubleshoot issues, support Citrix/VMware environments, manage upgrades/patches, document configurations, participate in disaster recovery testing, and provide on-call production support while ensuring compliance with policies and standards.

Provide hands-on IT support and systems administration across endpoints, identity, network infrastructure, collaboration tools, cloud services, and internal apps. Maintain security, compliance, imaging/patching, monitoring, and documentation to support engineering, manufacturing, and business teams in a regulated, government-facing environment.

Provide Tier 1/2 support and maintain servers, networks, virtualization, backups, and Microsoft 365 infrastructure. Troubleshoot hardware/software/connectivity issues, assist with deployments and upgrades, enforce security and compliance, document configurations, and collaborate on long-term infrastructure improvements to ensure stability and performance.

Lead Atlassian administration and integrations by designing, building, and maintaining REST/GraphQL/webhook integrations between SaaS, CRM/ERP, billing, and internal systems. Manage Jira/Confluence in clustered Linux, implement monitoring and security best practices, mentor teammates, troubleshoot stakeholder issues, and execute upgrades and data migrations to improve automation and reliability.

Administer and govern PDM/PLM systems (Autodesk Vault, SolidWorks PDM, PTC Windchill). Ensure engineering data integrity, BOM and item/master alignment, troubleshoot multi-CAD issues, support upgrades, migrations, and governance activities, and collaborate with engineering, IT, manufacturing, and business stakeholders.

Seeking SQL DBA/Systems Analyst for technical support in federal agency. Responsibilities include database management, ESI processing, and supporting eDiscovery applications.

The Systems Administrator is responsible for maintaining, configuring, and ensuring the reliable operation of computer systems, networks, and servers, while providing technical support and implementing security measures.

Manage and improve cloud-based SaaS IT environment, administer M365 and identity systems, operate and tune security platforms (Arctic Wolf, Zscaler, Okta, Mimecast), monitor alerts and lead incident response, oversee helpdesk (Freshservice), manage vendors, enable users through training and documentation, and apply AI and automation to streamline IT operations.

Lead and support design, deployment, administration, and Tier-2/3 support of AWS and hybrid-cloud systems. Maintain Linux/Windows servers, IP networking, automate operations with IaC/configuration management, produce documentation, and troubleshoot mission-critical infrastructure in a secured, fast-paced environment.

Provide Level 2 Linux/Unix systems administration in a 24×7 NOC: troubleshoot OS/service/connectivity issues, perform patching/reimaging, manage packages, own incident remediation, monitor systems, produce reports, maintain documentation, and train Level 1 analysts.

Provide advanced network monitoring, troubleshooting, and incident remediation in a 24×7 NOC. Handle Level 1 escalations, diagnose complex connectivity issues, perform network configuration changes, own Level 2 tickets to resolution, document root causes, produce operational reports, maintain device inventories and diagrams, and create runbooks and training for Level 1 analysts.

Administer and maintain Linux/Unix development, test, and production servers including imaging, patching, package management, and shell-level maintenance. Monitor systems, troubleshoot complex OS/service/connectivity issues, own Level 2 incidents through resolution and root-cause analysis, produce operational reports, maintain documentation/configuration data, create runbooks, and train Level 1 analysts. Support 24x7 operations across rotating shifts and ensure compliance with export-control and authorization requirements.

Provide Level 2 systems administration and network monitoring for development, test, and production servers. Install, upgrade, and license software; troubleshoot host and network issues; perform daily system monitoring, reporting, and record-keeping; recommend and implement solutions; and create user documentation and training materials.

Provide Level 2 Windows-focused NOC support: administer and harden Windows servers, troubleshoot OS/Active Directory/connectivity issues, monitor systems, remediate incidents, manage software/agents, produce reports, maintain documentation, and train Level 1 analysts.

Provide Level 2 Windows systems administration and troubleshooting for development, test, and production servers. Perform patching, re-imaging, GPO configuration, OS hardening, software/agent management, monitoring, incident remediation, root cause analysis, reporting, documentation, and create runbooks to train Level 1 analysts. Support 24×7 operations on rotating shifts.

Provide Level 2 network monitoring, advanced troubleshooting, incident remediation, and configuration support in a 24×7 NOC. Own escalated tickets, document root causes, produce reports, maintain network documentation, and create runbooks for Level 1 training.

Provide Level 2 network monitoring, advanced troubleshooting, and incident remediation in a 24x7 NOC. Support routers, switches, firewalls, VPNs, and load balancers; own Level 2 tickets, document root causes, produce operational reports, update network documentation, and create runbooks for Level 1 analysts. Work rotating shifts and support export-control eligibility requirements.

Provide Level 2 systems administration for development, test, and production servers with a Linux/Unix focus. Monitor network systems, troubleshoot hosts, install/upgrade software, re-image/debug servers, ensure compliance and licensing, produce operational reports, maintain system records, and create user how-to guides and training.

Operate and maintain Linux/Unix development, test, and production servers: patching, re-imaging, package management, monitoring, troubleshooting, and incident remediation. Own Level 2 tickets, perform root cause analysis, produce operational reports, maintain documentation and runbooks, and train Level 1 analysts. Support 24×7 rotating shifts and comply with export-control authorizations.

Provide Level 2 Windows-focused NOC support: administer and harden Windows servers, troubleshoot AD and connectivity issues, perform monitoring and patching, manage software/agents, own incident remediation, produce operational reports, maintain documentation, and train Level 1 analysts.

Perform Level 2 Windows systems administration for development, test, and production servers: troubleshooting AD and server connectivity, patching, re-imaging, GPO configuration, monitoring, incident remediation, reporting, documentation, and training Level 1 analysts.

Provide advanced Linux/Unix administration in a 24×7 NOC: troubleshoot OS/service/connectivity issues, perform re-imaging, patching, package management (yum/apt/rpm), monitoring, incident remediation, runbook creation, documentation, and train Level 1 analysts. Maintain compliance and operational reporting across development, test,and production servers; support rotating shifts.

Provide Level 2 Windows-focused NOC systems administration for development, test, and production servers: re-imaging, patching, GPO configuration, OS hardening, AD and connectivity troubleshooting, monitoring and proactive remediation, software/agent management, incident remediation with root cause analysis, reporting, documentation, and training/runbook creation for Level 1 analysts.

The Cloud Systems & Data Administrator will manage cloud infrastructure, ensure data accuracy and security, optimize system performance, and support EHR systems while collaborating with various teams.