Top Systems Administrator Jobs in Los Angeles, CA

The LMS Administrator will manage the learning management system, ensuring course setup, participant access, and data integrity while supporting training logistics and resolving issues in real time.

Manage and optimize pre-sales systems and top-of-funnel tools (Chili Piper, Salesforce, LinkedIn Sales Navigator, Lusha, ZoomInfo). Own lead/account routing, user provisioning, workflows, data quality, integrations, and documentation. Partner with Sales, Marketing Ops, Finance, and Analytics to improve processes, troubleshoot issues, and apply automation/AI to scale pre-sales operations.

Administer and maintain Windows/Linux servers, networking, virtualization, and Azure cloud infrastructure. Manage Active Directory, DNS, DHCP, Group Policy, VPNs, firewalls, SAN/NAS, backups, monitoring, patching, and disaster recovery. Provide high-level escalation support, perform controlled changes, maintain documentation, and collaborate with teams and vendors to improve infrastructure security, performance, and reliability. On-call and after-hours work required.

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.

The Senior IT Systems Administrator oversees the administration, security, and optimization of financial systems, ensuring reliability and compliance while leading system enhancements and integrations.

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

Own and automate IT workflows and SaaS integrations (identity, collaboration, core business apps). Configure SSO and identity protocols, maintain DNS and email security, troubleshoot endpoints and apps, support SOC 2/SOX compliance, document standards, and partner cross-functionally to scale reliable, secure IT systems.

Administer, harden, patch, and troubleshoot Linux servers and workstations for an Army air defense program. Support lab/dev environments, collaborate with engineers, document configurations, and respond to high-priority incidents to restore critical services.