Senior Network Engineer

Ethereum Technologies; Atlanta (GA); On-site; USD 120,000 - 180,000; Full time

Job summary

Ethereum Technologies is seeking a Senior Network Engineer to design, implement, and maintain our enterprise network infrastructure. The ideal candidate will bring strong Cisco routing/switching skills, firewall management (Palo Alto, Cisco ASA), and cloud networking knowledge to ensure secure, reliable connectivity across LAN/WAN/WLAN.

You will design and troubleshoot routing protocols, manage VPNs (IPsec/SSL), and participate in upgrades and migrations with security and cloud teams.

Qualifications

• Hands-on experience with Cisco routers and switches.
• Expertise in routing and switching technologies.
• Strong knowledge of BGP, OSPF, EIGRP, and TCP/IP.
• Experience with Palo Alto and Cisco ASA firewalls.
• Knowledge of LAN, WAN, WLAN, and VLAN configurations.
• Experience with IPsec VPN and SSL VPN technologies.
• Understanding of DNS, DHCP, NAT, and subnetting.
• Experience with network monitoring tools such as SolarWinds and PRTG.
• Knowledge of network security and access control policies.
• Familiarity with Python or Ansible for network automation.

Responsibilities

• Design, configure, and maintain enterprise LAN, WAN, and WLAN infrastructure.
• Configure and troubleshoot Cisco routers, switches, and wireless controllers.
• Implement routing protocols such as BGP, OSPF, and EIGRP.
• Manage network security policies, firewall configurations, and access controls.
• Configure and maintain Palo Alto and Cisco ASA firewalls.
• Monitor network performance, availability, and connectivity.
• Troubleshoot complex network issues and minimize downtime.
• Implement VPN solutions, including IPsec and SSL VPN.
• Manage VLANs, subnetting, DNS, DHCP, and network segmentation.
• Support network infrastructure upgrades and migration projects.
• Maintain network documentation, diagrams, and configuration standards.
• Collaborate with security, infrastructure, and cloud engineering teams.

Skills

Cisco routing

Routing & Switching

BGP/OSPF/EIGRP

Firewalls

VPN IPsec/SSL

DNS/DHCP

Network monitoring

Python/Ansible

Zero Trust

Tools

SolarWinds

PRTG

Palo Alto

Cisco ASA

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, Other

Job Summary:

We are seeking a skilled Senior Network Engineer to design, implement, maintain, and troubleshoot enterprise network infrastructure. The ideal candidate should have strong expertise in Cisco networking, routing and switching, network security, firewalls, and cloud networking.

Key Responsibilities

Design, configure, and maintain enterprise LAN, WAN, and WLAN infrastructure.

Configure and troubleshoot Cisco routers, switches, and wireless controllers.

Implement routing protocols such as BGP, OSPF, and EIGRP.

Manage network security policies, firewall configurations, and access controls.

Configure and maintain Palo Alto and Cisco ASA firewalls.

Monitor network performance, availability, and connectivity.

Troubleshoot complex network issues and minimize downtime.

Implement VPN solutions, including IPsec and SSL VPN.

Manage VLANs, subnetting, DNS, DHCP, and network segmentation.

Support network infrastructure upgrades and migration projects.

Maintain network documentation, diagrams, and configuration standards.

Collaborate with security, infrastructure, and cloud engineering teams.

Required Technical Skills

Hands-on experience with Cisco routers and switches.

Expertise in routing and switching technologies.

Strong knowledge of BGP, OSPF, EIGRP, and TCP/IP.

Experience with Palo Alto and Cisco ASA firewalls.

Knowledge of LAN, WAN, WLAN, and VLAN configurations.

Experience with IPsec VPN and SSL VPN technologies.

Understanding of DNS, DHCP, NAT, and subnetting.

Experience with network monitoring tools such as SolarWinds and PRTG.

Knowledge of network security and access control policies.

Familiarity with Python or Ansible for network automation.

Preferred Skills

Cisco CCNP or CCIE certification.

Experience with Cisco ACI and SD-WAN.

Knowledge of F5 BIG-IP load balancers.

Familiarity with AWS and Azure networking.

Experience with Wireshark and packet analysis.

Understanding of Zero Trust Network Architecture.

Knowledge of network automation and configuration management.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.