We are hiring a Senior Routing & Switching Engineer
Experience: 8+
Mode: Hybrid
Location: Bangalore
Notice Period: Immediate to 15 Days
Certification
CCIE mandatory
Primary Focus
Cisco Nexus/Catalyst/ASR/8300, Aruba CX and Juniper switching
Role Summary
Senior network engineer responsible for implementation, migration and troubleshooting of enterprise and data-center routing/switching infrastructure across Cisco, Aruba and Juniper platforms. The role requires strong architecture awareness and hands-on execution during complex network cutovers.
Key Responsibilities / Implementation Scope
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Design, configure and implement Layer 2/Layer 3 connectivity across data center, campus, branch, management, DMZ and external routing environments.
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Configure and migrate Cisco Nexus switching, including Nexus 9504 core, Nexus 9348 access and Nexus 93180YC platforms used in DMZ/access roles.
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Configure and support Cisco Catalyst 8000/9000 platforms, Cisco ASR 1002 and Cisco 8300 series external routers.
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Configure and migrate Aruba switching platforms including CX 6200, CX 6300, CX 8320 and related hardware such as JL479A and JL658A.
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Support Juniper switching where present, including legacy EX3300 and EX2200 devices identified in the environment.
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Implement and troubleshoot BGP, OSPF, static routing, route redistribution, route filtering, VRFs, HSRP/VRRP and policy-based routing as required.
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Configure VLANs, trunks, STP/RSTP/MST, EtherChannel/LACP, port-channels, inter-VLAN routing and network segmentation.
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Support connectivity integration with firewalls, load balancers, wireless, NAC, voice, cloud and security platforms.
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Perform hardware refreshes, network migrations and site/data-center cutovers with pre-checks, rollback procedures and post-change validation.
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Conduct packet-level troubleshooting, routing-path analysis, interface/error analysis and root-cause investigation for complex connectivity incidents.
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Prepare implementation plans, MOPs, test scripts, rollback plans, low-level designs and as-built documentation.
Required Technical Skills
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Required Hands-on Experience Cisco Nexus
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Nexus 9504, 9348 and 93180YC; NX-OS operations, VLAN/VRF, vPC/port-channel concepts and data-center switching.
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Cisco Routing / Switching
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Catalyst 8K/9K, ASR 1002, Cisco 8300 series; enterprise LAN/WAN and external routing.
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Aruba Switching
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Aruba CX 6200/6300/8320 and relevant models such as JL479A/JL658A.
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Juniper Switching
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Juniper EX3300 and EX2200 operational support and migration exposure.
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Routing Protocols
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BGP, OSPF, static routing, route redistribution/filtering, VRF, HSRP/VRRP and policy-based routing.
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Layer 2 / Segmentation
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VLANs, 802.1Q trunking, STP/RSTP/MST, EtherChannel/LACP, port-channel, inter-VLAN routing and segmentation.
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Troubleshooting
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Packet capture, routing-path analysis, latency/loss analysis, interface errors, convergence and incident RCA.
Certification Requirements
Mandatory: Active CCIE certification is mandatory. CCIE Enterprise Infrastructure is preferred; legacy CCIE Routing & Switching is acceptable where valid/relevant.
Preferred / Advantageous: Additional Cisco data-center, Aruba switching or Juniper certifications are advantageous.
Required Deliverables
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Low-level network design and port/VLAN/routing configuration workbook
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Implementation runbooks and MOPs
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Network migration/cutover and rollback plans
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Connectivity and failover test scripts with results
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As-built diagrams/configurations and operational handover documentation
