Senior Network Engineer

The Senior Network Engineer is responsible for the design, implementation, maintenance, and support of the County’s secure and reliable network infrastructure. This role encompasses a broad range of technologies including, but not limited to, local and wide area networks (LAN/WAN), routers, switches, firewalls, VPNs, Wi‑Fi, ISE authentication, and overall network and cyber security.

In addition to core networking duties, the Senior Network Engineer collaborates with the systems team to assist with server infrastructure, enterprise applications, antivirus platforms, patch management, and cloud computing initiatives.

To perform this job successfully, an individual must be able to perform each essential duty and responsibility satisfactorily. The requirements listed below are representative of the knowledge, skill and/or ability required. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential duties and responsibilities.

The following duties are normal for this position. These duties are not to be construed as exclusive or all-inclusive. Other duties may be required and assigned.

• Design, deploy, secure and maintain Wireless and LAN/WAN infrastructure using Cisco Catalyst and Nexus switches and routers.
• Configure and manage Palo Alto firewalls, including security policies, threat prevention, VPN configurations and patching.
• Implement and maintain secure network authentication using Cisco ISE authentication.
• Monitor network performance and security using industry‑standard tools and best practices.
• Troubleshoot and resolve complex network issues to ensure minimal downtime and optimal performance.
• Maintain accurate documentation of network architecture, configurations, and procedures.
• Create and responds to IT Network Team tickets in a timely manner.
• Collaborate and assist the systems team with supporting server environments, enterprise applications, antivirus solutions, and patching processes.
• Provides backup support to other IT staff as needed and contributes to cross‑functional process improvement initiatives.
• Stay current with emerging technologies and recommend improvements to enhance network efficiency, scalability, and security.
• Delivers training and documentation on new network systems and technologies to both IT staff and end users.
• Participate in on‑call rotation and provide after‑hours support as needed.
• Acts as the escalation point for network‑related IT end‑user support issues.
• Actively participates in weekly team meetings to present project updates, collaborate with team members, and discuss job related topics.
• Maintains respectful and cooperative working relationships and demonstrates regular and reliable attendance in accordance with departmental scheduling.
• May be involved in managing and administering VOIP technologies

• Advanced Analytical
  
  Skills:
  
  Proven ability to identify, define, test, and resolve complex issues in large‑scale data networks.
• Effective Communicator:
  Skilled at translating complex technical concepts into clear, understandable terms for non‑technical users.
• Expert Troubleshooter:
  Extensive experience diagnosing and resolving issues across LAN and WAN environments, including applications, computers, networking equipment, and peripherals.
• Network Infrastructure Expertise:
  Senior‑level proficiency in network switching, wireless technologies, and associated configuration and management tools including In‑depth knowledge of VLANs, VTP, port security, and spanning tree protocols.
• Firewall:
  Experience managing complex firewalls and security policies.
• Cybersecurity Awareness:
  Strong knowledge of cybersecurity principles and practices, with a security‑first approach to all responsibilities.
• Project Management & IT Knowledge:
  Comprehensive understanding of IT systems and project management methodologies.
• Cabling and Fiber Optics:
  Good understanding of cabling technologies, including copper and fiber optics, sfp transceivers etc.
• Virtualization:
  Hands‑on understanding and experience with VMware environments.
• Organized & Self‑Motivated:
  Strong…