Network Engineer

Key Responsibilities

• Design, configure, and support enterprise switches, routers, and firewalls.
• Implement and maintain AAA, TACACS, and access control mechanisms.
• Support network segmentation and isolation strategies across enterprise environments.
• Configure and troubleshoot routing protocols including static routing, BGP, and OSPF.
• Deploy, support, or integrate network taps and monitoring solutions.
• Analyze PCAP files to troubleshoot traffic flows, security events, and network performance issues.
• Work with Cisco, Juniper, and Palo Alto platforms across network and security infrastructure.
• Support network security monitoring tools and collaborate with security teams on visibility and incident investigation.
• Aid in network hardening, documentation, and operational standards.
• Contribute to automation or scripting initiatives where applicable.

Required Qualifications

• 5+ years of hands-on network engineering experience.
• Strong experience with AAA concepts and TACACS-based authentication.
• Experience designing or supporting network segmentation and isolation.
• Strong switching and routing knowledge.
• Hands-on experience with static routing, BGP, and OSPF.
• Experience configuring and supporting Cisco network infrastructure.
• Experience with Juniper and/or Palo Alto firewalls, routers, or switches.
• Familiarity with network taps and network visibility architecture.
• Experience using network security or network monitoring tools.
• Ability to perform PCAP analysis for troubleshooting and security validation.
• Strong understanding of firewall policies, routing behavior, and traffic flows.
• Ability to work in a production enterprise environment with proper change control.

Preferred / Nice-to-Have Qualifications

• Network automation experience.
• Python or other scripting experience.
• Experience with network IDS in an OT environment.
• Cisco Secure Network Analytics, formerly Stealthwatch.
• Cisco ISE experience.
• CCNA, CCNP, or CCIE certification.
• Experience supporting critical infrastructure, industrial, utility, transportation, or OT/ICS environments.
• Experience integrating network monitoring with security operations workflows.

Tools / Technologies / Systems

• Cisco, Juniper, Palo Alto
• Cisco ISE
• TACACS, AAA
• BGP, OSPF, static routing
• firewalls, routers, switches, network taps
• PCAP, Wireshark
• Cisco Secure Network Analytics, Stealthwatch, IDS
• network monitoring tools, Python

KPIs / Performance Outcomes

• Improve secure network access control through effective AAA/TACACS implementation.
• Maintain reliable routing, switching, and firewall operations across enterprise infrastructure.
• Reduce troubleshooting time through accurate PCAP and traffic-flow analysis.
• Improve network visibility using taps, monitoring tools, and security analytics platforms.
• Support segmentation and isolation efforts that reduce risk and improve compliance.