Senior Cisco Network Engineer – Enterprise LAN/Backbone

Ethereum Technologies LLC; Mendota Heights (MN); On-site; USD 110,000 - 170,000; Full time

Job summary

Ethereum Technologies in Mendota Heights, MN seeks an experienced Senior Network Engineer to maintain and optimize a Cisco-based enterprise network. You will design, deploy, and troubleshoot LAN and backbone infrastructure, manage complex incidents, and contribute to performance improvements.

The role involves hands-on administration of Cisco devices, routing protocols (BGP/OSPF/EIGRP), network monitoring tools, and documentation.

Qualifications

• 5+ years of network engineering or network operations experience.
• 2+ years of experience administering network monitoring and management tools.
• Strong hands-on experience with Cisco routing and switching technologies.
• Working knowledge of routing protocols including BGP, OSPF, and EIGRP.
• Experience configuring traffic policies and NetFlow.
• Hands-on experience with Cisco DNA Center.
• Experience configuring and deploying Cisco Nexus switches.
• Experience supporting Cisco Aggregation Services Routers (ASR).
• Strong troubleshooting and root cause analysis skills.
• Ability to develop and maintain clear technical documentation.
• Ability to participate in on-call support and travel as required.

Responsibilities

• Configure, administer, and support Cisco routers, switches, and network appliances across enterprise LAN and backbone environments.
• Provision and deploy new Cisco routers and switches.
• Troubleshoot complex network issues and perform root cause analysis for network incidents.
• Support network performance tuning, monitoring, and ongoing administration.
• Assist with network infrastructure upgrades, code evaluations, testing, and production implementations.
• Coordinate network changes and maintenance windows with technical teams and business stakeholders.
• Configure and support routing protocols including BGP, OSPF, and EIGRP.
• Support traffic policies and NetFlow configurations.
• Administer and utilize network monitoring and management platforms such as Cisco DNA Center, NetScout, NetMRI, Broadcom Spectrum, Performance Center, NFA, and Splunk.
• Configure and support Cisco Nexus switches and ASR routers.
• Create and maintain network configuration documentation, operational procedures, and technical standards.
• Ensure networking devices comply with applicable operational and security requirements.
• Participate in production support and an on-call rotation.
• Travel within the supported service territory as needed to troubleshoot or restore network equipment.

Skills

Cisco routing

Cisco switching

Network troubleshooting

Root cause analysis

Documentation

On-call support

Travel readiness

Incident recovery

Tools

NetScout

NetMRI

Broadcom Spectrum

Performance Center

NFA

Splunk

Cisco DNA Center

ASR experience

Job description

Ethereum Technologies in Mendota Heights, MN seeks an experienced Senior Network Engineer to maintain and optimize a Cisco-based enterprise network. You will design, deploy, and troubleshoot LAN and backbone infrastructure, manage complex incidents, and contribute to performance improvements.

The role involves hands-on administration of Cisco devices, routing protocols (BGP/OSPF/EIGRP), network monitoring tools, and documentation.