Sr. Network Engineer

Must be US Citizen or Green Card Holder

Level 3 Network Engineer (Senior)

We are seeking a highly skilled Level 3 Network Engineer to lead the design, implementation, and optimization of our enterprise network. This role serves as the top escalation point for complex issues and plays a key role in network architecture, performance, and security.

Key Responsibilities

• Act as Tier 3 escalation for complex network incidents; perform root cause analysis using packet capture and advanced diagnostics
• Design, implement, and optimize enterprise network infrastructure (routers, switches, VPNs, firewalls)
• Monitor performance, troubleshoot issues, and ensure high availability across systems
• Configure and maintain network hardware/software, including upgrades and security controls
• Develop and enforce firewall rules and security best practices
• Support disaster recovery planning and execution
• Lead network improvement initiatives and support new deployments
• Mentor junior engineers and collaborate across teams
• Participate in on-call rotation and provide occasional onsite support

Qualifications

• 8–10+ years of enterprise networking experience
• Expertise in BGP, OSPF, VXLAN, EVPN, MPLS, and core protocols (EIGRP, HSRP, VRRP, DNS, DHCP)
• Strong experience with Cisco networking (IOS, NX-OS) and firewalls
• Solid understanding of OSI model and advanced troubleshooting methodologies
• Experience with SD-WAN and data center environments
• Proven ability to lead projects and mentor junior staff
• Strong communication skills with both technical and non-technical stakeholders

Preferred

• Experience with Cisco ACI and network segmentation
• Experience with F5 load balancers