We are looking for an experienced Senior Network Administrator to support and enhance the network environment for an architecture-focused organization in Portland, Oregon. This Long-term Contract position is ideal for a detail-oriented candidate who can maintain reliable connectivity, strengthen security, and improve overall infrastructure performance across enterprise systems. The role requires strong technical depth in routing, firewall administration, cloud-connected environments, and day-to-day network operations.<br><br>Responsibilities:<br>• Oversee the stability, performance, and security of LAN and WAN infrastructure across the organization.<br>• Configure, maintain, and troubleshoot Cisco routers and broader Cisco networking components to ensure dependable connectivity.<br>• Administer Fortinet firewall solutions, including policy updates, access controls, and threat protection measures.<br>• Support SD-WAN operations by monitoring links, optimizing traffic flow, and resolving connectivity issues between sites and services.<br>• Manage Active Directory and related system administration tasks that support network access and user connectivity.<br>• Collaborate with internal teams to address network incidents, implement improvements, and reduce service disruptions.<br>• Assist with Azure-connected networking components and help maintain secure integration between cloud and on-premises environments.<br>• Document network configurations, operational procedures, and technical changes to support ongoing maintenance and compliance.