Senior Network Administrator

Robert Half Technology • Portland, OR, United States • Posted May 05, 2026

Location Portland, OR
Job Type Full-time
Category other-general
Posted May 05, 2026
Description 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.

Responsibilities:
• Oversee the stability, performance, and security of LAN and WAN infrastructure across the organization.
• Configure, maintain, and troubleshoot Cisco routers and broader Cisco networking components to ensure dependable connectivity.
• Administer Fortinet firewall solutions, including policy updates, access controls, and threat protection measures.
• Support SD-WAN operations by monitoring links, optimizing traffic flow,...

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