Top Systems Administrator Jobs in Los Angeles, CA

Manage and scale on-premise and cloud infrastructure supporting engineering, manufacturing, and secure programs. Administer Windows and Linux servers, Proxmox virtualization, Microsoft 365 services, networking, backups/DR, monitoring, and CMMC Level 2 security efforts. Automate tasks with PowerShell or Bash and support incident response and system availability.

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 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.

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.

Owns the lifecycle, security, and administration of company devices, Mac MDM, user accounts, endpoint controls, networks, servers, backups, logging, and vulnerability remediation. Supports field deployments and customer-site infrastructure, maintains IT policies and documentation, coordinates shared services with parent-company IT, evaluates new tools, and communicates project risks and tradeoffs to leadership.

Manage and maintain on-prem Linux and Windows infrastructure and hybrid Microsoft 365/Azure services. Support identity, endpoint security, monitoring, and engineering simulation applications. Automate provisioning, contribute to ITSM processes, provide helpdesk escalation, and maintain documentation and SOPs to ensure secure, reliable, scalable systems.

Provide end-to-end systems administration for on-prem and cloud environments: install/configure Windows/Linux servers, firewalls, networks, virtualization, storage, backups, and Java web applications; support customers via tickets and coordinate maintenance and upgrades.

The IT Systems Administrator at AstroForge will build and maintain internal tech infrastructure, support users, manage network and security compliance, and handle hardware lifecycle management.

Lead Salesforce administration for Sales and Service Clouds, manage integrations and data flows, define system roadmaps, optimize business processes, document configurations, and partner cross-functionally to drive scalable GTM system solutions.

The IT Systems Administrator is responsible for supporting and maintaining IT infrastructure, resolving incidents, documenting systems, and ensuring compliance with cybersecurity standards.

Owner of enterprise systems and automations: build and maintain Airtable bases and n8n integrations, write scripts and API/webhook integrations, administer NetSuite, monitor Snowflake pipelines, provide high-touch technical support, and document runbooks.

Lead day-to-day system administration for cloud and on-prem systems: install, configure, maintain, optimize, and secure servers and networks. Perform capacity and performance analysis, automate admin tasks, train staff, manage application networking and load balancing, and conduct vulnerability management while supporting CUI and government security requirements in a fully remote Agile environment.

Leads enterprise Linux architecture, administration, governance, and lifecycle activities for classified government systems. Designs backup, disaster recovery, high-availability, virtualization, containerization, networking, identity, monitoring, and security solutions. Directs system enhancement projects, automation, documentation, and cross-platform operations while resolving complex issues independently. Provides technical mentorship and leadership across teams. Requires on-site work, after-hours support as needed, a current Top Secret clearance with SCI eligibility, IAT Level II certification, and ability to obtain a CI polygraph.

Administer and maintain the school's network, servers, endpoints, MDM, and cloud identity services. Troubleshoot infrastructure and classroom technology, support AV and printers, assist with cybersecurity, backups, disaster recovery, and participate in technology projects and planning.

Administer Epic’s corporate identity, access, endpoints, applications, devices, and employee IT support. Manage onboarding and offboarding, access reviews, authentication and device standards, MDM provisioning, asset inventories, procedures, and audit evidence. Support SOC 2 or similar compliance activities, security reviews, and incident response while partnering with infrastructure and people operations. This is a fully remote, US-based role supporting a global engineering team.

Lead administration of Microsoft 365, Google Workspace, SaaS applications, Azure identity, and cloud infrastructure in a fully cloud-based organization. Provide Level 2/3 service desk escalation, execute migrations and cybersecurity projects, establish IT service processes, manage assets and vendors, and support onboarding, offboarding, incident response, change management, and M&A initiatives. The role partners with IT leadership and may help build and manage a growing internal technical team.

Administers and develops Oracle EPM Cloud and Hyperion financial planning systems. Responsibilities include managing security and user access, maintaining nightly and close processes, troubleshooting integrations, developing enhancements with Groovy and EPM Automate, coordinating patching and regression testing, writing technical specifications and test plans, supporting data governance, analyzing issues, and creating stakeholder training materials. The role collaborates with IT and business teams to deliver reliable, scalable financial systems.

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.

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

Serve as Business Systems Analyst and JIRA Administrator to configure and manage JIRA, support Agile ceremonies, gather and trace system requirements, integrate JIRA with CI/CD and test tooling, report performance metrics and support JPMO planning and Integrated Master Schedule activities. Support transition from waterfall to Agile and provide technical guidance on system implications.

Manage and secure hybrid on‑prem and cloud infrastructure (Azure and AWS). Administer identity, compute, storage, virtualization, monitoring, backups/DR, and security. Support cloud migrations, AI/ML infrastructure, Tier 2/3 troubleshooting, Microsoft 365, documentation, and process improvement.

Owner and administrator of the Agiloft CLM platform: configure workflows, permissions, templates, and integrations. Partner with Legal Operations, IT, and business teams to optimize contract processes, support end users, build reports/dashboards, and maintain data integrity. Expand platform integrations and evolve legal technology capabilities.

Lead and sustain large-scale HPC systems supporting NOAA/NWS forecasting. Manage scheduler/software stack (PBS Pro/Slurm), optimize performance and throughput, troubleshoot multi-node Linux clusters, develop scripts, and support 24/7 operations with occasional travel and on-call duties.

Administer and optimize Salesforce, Gainsight, and Pendo for Brands and Retailers services. Maintain integrations and data consistency, configure AI capabilities, troubleshoot platform and data issues, build scalable automations, and support Services teams to improve adoption and operational efficiency.