office-365 jobs in San Diego

SAIC seeks an experienced Sr Systems Administrator to manage Windows and Linux servers, Azure cloud services, M365, and on-premises infrastructure for a public sector client. The role requires hands-on administration of IaaS/PaaS services, Active Directory, Exchange, VMware, backup/recovery, and security—with 24/7 on-call rotation support.…See more The ideal candidate will have 5+ years of server administration experience, strong troubleshooting skills, and certifications in Azure or Windows Server administration.

Hands-on IT Infrastructure/System Administrator for a diagnostic company, responsible for maintaining network security, availability, and reliability in a one-person IT environment. Duties include workstation management, end-user support, firewall and backup administration, cybersecurity training, and collaboration with headquarters IT on infrastructure projects.…See more Requires 5+ years of IT experience and proficiency with infrastructure tools such as Office 365, MS SQL Server, VMware, DNS, firewalls (SonicWall, Barracuda), and backup solutions.