Network Administrator

Seneca Resources; Richmond (VA); On-site; USD 100,000 - 150,000; Full time

Job summary

Seneca Resources in Virginia is seeking a Contract Network Operations & WAN Engineer to implement and maintain WAN/LAN infrastructure across core and distributed sites using Cisco IOS and NX-OS. The role requires hands-on Cisco routing/switching experience and expertise in SD-WAN, security, and monitoring tools.

The ideal candidate holds a CCNA certification and has approximately 5 years of WAN administration experience in multi-site environments, with willingness to travel across Virginia for

Qualifications

• CCNA certification required.
• Approximately 5 years of network/WAN administration experience in multi-site enterprise.
• Strong Cisco IOS/NX-OS hands-on experience.

Responsibilities

• Implement and maintain WAN/LAN infrastructure across core and distributed sites using Cisco IOS and NX-OS.
• Configure and optimize L2/L3 features including VLANs, trunks, STP, EtherChannel, QoS, OSPF, BGP, and EIGRP.
• Manage and troubleshoot Cisco SD-WAN (vManage/vSmart/vEdge) including templates, policies, device onboarding, software upgrades, and HA cluster operations.
• Maintain and administer Cisco ISE (802.1X NAC, profiling, guest access), Duo MFA, and Cloudflare Zero Trust configurations.
• Operate Cisco Secure Firewalls (ASA/FTD) including rule creation, NAT, VPN policies, and change-controlled deployments.
• Monitoring, Telemetry & Visibility.

Skills

Cisco IOS

NX-OS

L2/L3 Routing

VLANs/Trunks/STP

EtherChannel

QoS

OSPF/BGP/EIGRP

Cisco SD-WAN

Meraki

PowerShell/Python

Monitoring Tools

Travel Ready

Security: ISE/MFA/ZTNA

Firewall ASA/FTD

Job description

Type: Contract (No sponsorship or No C2C)

Must: CCNA Certification

Network Operations & WAN Engineering

• Implement and maintain WAN/LAN infrastructure across core and distributed sites using Cisco IOS and NX-OS platforms.
• Configure and optimize L2/L3 features including VLANs, trunks, STP, EtherChannel, QoS, OSPF, BGP, and EIGRP.
• Manage and troubleshoot Cisco SD-WAN (vManage/vSmart/vEdge) including templates, policies, device onboarding, software upgrades, and HA cluster operations.

Secure Access & Zero-Trust Technologies

• Maintain and administer Cisco ISE (802.1X NAC, profiling, guest access), Duo MFA, and Cloudflare Zero Trust (ZTNA/SWG) configurations.
• Operate Cisco Secure Firewalls (ASA/FTD) including rule creation, NAT, VPN (IPsec) policies, and change-controlled deployments.
• Monitoring, Telemetry & Visibility

Qualifications:

• Approximately 5 years of network/WAN administration experience in multi-site enterprise environments.
• Strong Cisco hands-on experience (IOS, NX-OS).
• Core L2/L3 protocol proficiency: VLANs, trunks, STP, EtherChannel, QoS, OSPF, BGP, EIGRP.
• Daily-operations experience with Cisco SD-WAN (vManage/vSmart/vEdge).
• Experience with cloud-managed networking (preferably Meraki).
• Monitoring tools: ThousandEyes, SolarWinds/PRTG, Splunk.
• Scripting ability (PowerShell, Python, or Bash).
• Ability to travel throughout Virginia for site visits and support after-hours operations.