Job Description

Job Summary We are currently seeking a highly skilled Core Network Engineer with deep expertise in Enterprise and Data Center Networking to support the design, implementation, optimization, and operational support of its mission-critical network infrastructure. The ideal candidate will have extensive experience with Cisco Nexus, Spine-Leaf architectures, BGP, OSPF, VXLAN/EVPN, MPLS , and large-scale enterprise data center environments. This role requires a hands-on engineer who can troubleshoot complex networking issues, support infrastructure modernization initiatives, and collaborate with Cloud, Security, Systems, and Application teams to ensure highly available, secure, and scalable network services.

• Design, deploy, and support enterprise core and data center network infrastructure.
• Configure and troubleshoot Cisco Nexus, Catalyst, ASR, ISR, and/or Arista networking platforms.
• Support Layer 2 and Layer 3 networking across multiple enterprise and data center locations.
• Implement and maintain routing protocols including BGP, OSPF, EIGRP, and MPLS .
• Design and support modern Spine-Leaf architectures using VXLAN/EVPN technologies.
• Configure and maintain VLANs, VRFs, STP, VPC, MLAG, HSRP, VRRP, and ECMP.
• Perform network capacity planning, hardware refreshes, migrations, and infrastructure upgrades.
• Troubleshoot complex production issues involving routing, switching, latency, packet loss, and network performance.
• Partner with Cloud, Security, Server, Storage, and Application teams to deliver resilient infrastructure solutions.
• Support change management, maintenance windows, incident response, and root cause analysis.
• Create and maintain network diagrams, standards, operational procedures, and technical documentation.
• Participate in on-call production support as required.

• 8+ years of hands-on experience as a Core Network Engineer in large enterprise environments.
• Strong experience supporting enterprise Data Center Networking infrastructure.
• Deep understanding of: TCP/IP Routing & Switching BGP OSPF EIGRP MPLS VXLAN/EVPN Spine-Leaf Architecture VLANs VRFs STP/RSTP/MST VPC/MLAG HSRP/VRRP Multicast Experience with Cisco Nexus 9000/7000/5000 platforms.
• Experience with Cisco Catalyst and Cisco ASR/ISR routers.
• Strong understanding of enterprise network security fundamentals including ACLs, VPNs, segmentation, and firewall integration.
• Experience with DNS, DHCP, NAT, QoS, and load balancing.
• Experience using network monitoring and troubleshooting tools such as SolarWinds, Wireshark, ThousandEyes, or similar.
• Strong analytical, troubleshooting, and problem-solving skills.
• Excellent communication and cross-functional collaboration skills.

• Experience with Cisco ACI.
• Cloud networking experience in AWS and/or Azure.
• Network automation using Python, Ansible, or Terraform.
• Experience supporting hybrid cloud connectivity.
• CCNP Enterprise or CCIE certification preferred.
• Experience in Financial Services, Insurance, or other large enterprise environments.

For applications and inquiries, contact:hirings@openkyber.com

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