Network Engineer

Galveston County Human Resources; Galveston (TX); On-site; USD 82,000 - 100,000; Full time

Job summary

Galveston County Human Resources seeks an experienced network engineer to design, implement, secure and maintain the County’s enterprise network and communications. You will serve as the SME for network initiatives, architect data center fabrics and ensure secure, reliable connectivity across sites.

The role requires expertise in Cisco Nexus/Catalyst, firewalls, ISE, IP telephony, QoS and VPNs, with strong collaboration with staff and vendors.

Qualifications

• Four-year degree in Computer Information Systems or equivalent combination of education and experience.
• Minimum seven years of experience in route/switch, wireless and security of LAN/WAN environments.
• Experience with Cisco Nexus and Catalyst platforms, Firepower, ISE and WLAN diagnostics.
• Experience designing, configuring and supporting Cisco IP telephony, VOIP, QoS and Unity/UCCX.

Responsibilities

• Design, engineer, implement and maintain enterprise network and communications infrastructure (LAN/WAN, wireless, VoIP).
• Serve as primary architect and SME for enterprise network initiatives under guidance.
• Design and support Cisco Nexus data center fabrics and core/distribution/access layers.
• Manage SD-WAN edge resiliency with Peplink LTE/5G failover.
• Document network diagrams and maintain on-prem and co-located environments.
• Install, configure and manage routers, switches, firewalls, DNS, DHCP, and VPNs.
• Administer and support Cisco AnyConnect VPN for secure remote access.
• Interface with vendors, staff and management to optimize systems.
• Participate in budget planning for infrastructure upgrades and lifecycle replacement.
• Ensure compliance with regulatory, security and disaster recovery requirements.

Education

Four-year degree in Computer Information Systems

Equivalent combination of education and experience

Tools

Cisco Nexus data center fabrics

Cisco Catalyst switches

Cisco Next-Gen Firewalls with Firepower Threat Defense

Cisco ISE Identity Service Engine

Cisco WLAN products and diagnostic tools

Cisco IP telephony

Cisco TACACS/ISE

OSPF/BGP/EIGRP routing

AD/DNS/DHCP

Peplink SD-WAN

NetMotion Mobility VPN

Job description

General Description

The purpose of this class is to engineer, implement, secure and maintain the County’s enterprise network and communications.

Duties and Responsibilities

The functions listed below are those that represent the majority of the time spent working in this class. Management may assign additional functions related to the type of work of the class as necessary.

• Design, engineer, implement and maintain enterprise network and communications infrastructure, including LAN, WAN, wireless, VoIP, collaboration platforms and co-located data center connectivity.
• With guidance under the Network Services Manager, serve as primary architect and subject matter expert for enterprise network initiatives.
• Design and support Cisco Nexus data center fabrics, including core, distribution and access-layer designs.
• Support resilient edge connectivity and SD-WAN solutions, including Peplink platforms with LTE/5G failover and bandwidth bonding for continuity and emergency operations.
• Design, document and maintain network, telecommunications, data flow, logical, physical, and as-built diagrams, including on-premise and co-located environments.
• Install, configure, support and manage network and security infrastructure, including routers, switches, firewalls, DNS, DHCP, authentication services, and secure inter-site connectivity.
• Engineer and manage redundant connectivity, carrier circuits, private Ethernet links, and BGP-based routing.
• Administers and supports the County’s Cisco AnyConnect VPN infrastructure, ensuring secure, reliable remote access for County staff and partners.
• Research, evaluate and recommend new technologies related to network, telecom, and collaboration.
• Manage structured cabling and fiber infrastructure within data centers, co-located facilities as well as IDF and MDF areas.
• Analyze network performance, availability and capacity; identify bottlenecks, risks and improvement opportunities.
• Troubleshoot complex issues, perform root-cause analysis, and implement long-term corrective action solutions.
• Interface and consult with suppliers, service vendors and staff to maximize the overall efficiency and effectiveness of the systems.
• Maintain telephone systems services including move/add/change/delete, voicemail, auto attendant and integrated voice response.
• Serve as technical liaison with communication carriers, service providers and contractors.
• Participate in the budget process with regard to infrastructure upgrades, carrier services, renewals and lifecycle replacement.
• Ensure network and communication systems meet all regulatory and security requirements; disaster recovery and business continuity.
• Attend meetings, trainings and forums as necessary.
• Perform other duties as assigned.

Minimum Education and Experience Requirements:

Four-year degree in Computer Information Systems; or equivalent combination of education and experience.

Minimum seven years of experience:

• Route/switch, wireless and security of local and wide area networks including system configuration, setup, troubleshooting, implementation, and user support.
• Cisco Nexus data center fabrics
• Cisco Catalyst switches
• Cisco Next-Gen Firewalls with Firepower Threat Defense
• Cisco ISE Identity Service Engine.
• Cisco WLAN products and diagnostic tools.
• Designing, configuration, setup, troubleshooting, implementing and supporting Cisco IP telephony.
• Cisco VOIP, QOS, Call Manager, Unity and UCCX.
• Cisco TACACS/ISE
• OSPF, EIGRP and BGP and other interior/exterior gateway protocols.
• AD, DNS, and DHCP.
• Peplink SD-WAN platforms with LTE/5G failover and edge resiliency
• NetMotion Mobility VPN

Physical Demands/Work Environment:

Physical demands refer to the requirements for physical exertion and coordination of limb and body movement.

Unavoidable hazards refer to the job conditions that may lead to injury or health hazards even though precautions have been taken.

The work is typically performed sitting at a desk or table or while intermittently sitting, standing, bending, crouching, or stooping. The employee occasionally lifts light and heavy objects.

The work is typically performed in an office, but can also be within a data center or MDF/IDF.

Emergency Preparedness Tier Level: 1

Special Certifications and Licenses:

• Complete CJIS Awareness Training Level 4 every two years
• Valid TX Driver’s License
• Must maintain CJIS compliance

Department:

Enterprise Services

Salary:

$90,800.00