Senior Network/System Administrator

Essential Job Functions

• Leads the administration and support of the County's network infrastructure, including switches, routers, firewalls, VPN, and wireless systems.
• Administers servers, storage, virtualization platforms, and enterprise applications, ensuring high availability and performance.
• Manages user accounts, security groups, group policies, and access controls across Active Directory, Microsoft 365, and other enterprise systems.
• Maintains a secure and compliant environment through patch management, system upgrades, and firmware/software updates.
• Implements and enforces network and systems security best practices, including firewalls, intrusion detection/prevention, and multi-factor authentication.
• Serves as escalation point for complex technical issues, working independently and in coordination with other IT staff and vendors.
• Develops and maintains technical documentation, system inventories, and standard operating procedures.
• Collaborates with IT leadership on strategic initiatives, project planning, and technology roadmaps.
• Mentors and provides guidance to junior IT team members.
• Manages vendor relationships and coordinates support for telecommunications, internet, and technology services.