Network Engineer :: Houston, TX :: Full-Time/Permanent

Job Role: Network Engineer L3 Network Operations
Location: Houston, TX (Onsite-Hybrid)
Employment Type: Full-Time/Permanent Job Description Role Summary

We are looking for a Network Operations L3 Engineer to provide advanced operational support, troubleshooting, and implementation for enterprise network infrastructure. The role involves handling complex incidents, leading changes, and acting as an SME for Cisco Firewalls and Routing & Switching environments.

Key Responsibilities

• Provide L3 support for production network environments, including incident resolution, root cause analysis, and preventive actions.

• Troubleshoot and resolve complex network issues related to routing, switching, and firewall technologies.

• Configure, manage, and optimize Cisco Firewalls (ASA, Firepower, and FTD), including:

  • ACLs, NAT, site-to-site and remote-access VPNs.

  • Policy changes, upgrades, and failover scenarios.

• Design, configure, and support Routing & Switching infrastructure.

• Work with routing protocols such as OSPF, BGP, and EIGRP.

• Support switching technologies, including VLANs, STP, HSRP/VRRP, PortChannels, VPC, and EtherChannel.

• Lead and execute network changes, upgrades, migrations, and maintenance activities following ITIL processes.

• Act as an escalation point for L2/NOC teams and mentor junior engineers.

• Participate in problem management, RCA, documentation, and service improvement initiatives.

• Work closely with security, cloud, and application teams during outages and project activities.

• Maintain technical documentation, including HLDs/LLDs, SOPs, runbooks, and change records.

Mandatory Skills

• Cisco Firewalls.

• Cisco ASA, Firepower, and FTD.

• NAT, ACLs, IPsec, and SSL VPN.

• High availability and upgrades.

• Routing & Switching.

• Strong hands-on experience with Cisco routers and switches.

• OSPF, BGP, and EIGRP.

• VLANs, STP, HSRP/VRRP, VPC, and EtherChannel.

• Cisco DC/Branches Routers & Switches.

• Cisco Wireless.

• Cisco SDN Network Administration.

Troubleshooting

• Deep packet-level and protocol-level troubleshooting.

• Handling high-severity incidents in production.

Good-to-Have Skills

• Exposure to Fortinet and Palo Alto firewalls.

• Experience with data center or enterprise networks.

• Monitoring tools such as SolarWinds, PRTG, and ServiceNow (SNOW).

• Basic understanding of cloud networking and Azure/AWS connectivity.

• ITIL process awareness, including Incident, Change, and Problem Management.

• AWS Infrastructure Services.

• Azure Infrastructure Services.