Senior L3 Network Engineer Cisco and Aruba

We are hiring a Senior L3 Network Engineer Cisco & Aruba Specialist with 7+ years of enterprise networking experience to support enterprise network modernization and IT/OT connectivity initiatives.

The role requires strong hands-on expertise in Cisco and Aruba networking, Layer 3 routing, switching, enterprise wireless, NAC, network segmentation, and complex network troubleshooting.

Key Responsibilities

• Design, configure, manage, and optimize enterprise Cisco and Aruba network infrastructure.
• Manage complex Layer 3 routing environments using BGP, OSPF, EIGRP, VRFs, and VLAN segmentation.
• Troubleshoot routing instability, network latency, packet loss, failover issues, and performance bottlenecks.
• Manage high-availability network infrastructure supporting business-critical operations.
• Administer Aruba wireless infrastructure, Aruba Central, and Aruba ClearPass.
• Configure NAC policies, secure wireless access controls, and device profiling.
• Support enterprise-to-OT connectivity and secure network segmentation.
• Support firewall routing integrations with Palo Alto Networks.
• Manage VPN, site-to-site connectivity, and edge routing services.
• Act as the L3 escalation point for critical and production-impacting network incidents.
• Use SolarWinds and Cisco DNA Center for network monitoring and performance management.
• Perform root cause analysis and implement post-incident remediation.
• Collaborate with Network Security, OT Security, Infrastructure, and Systems Engineering teams.

Must-Have Skills

• 8+ years of enterprise networking experience.
• Strong hands-on L3 routing and switching expertise.
• Advanced experience with Cisco IOS/XE/NX-OS.
• Strong experience with Aruba networking and ArubaOS-CX.
• Excellent knowledge of BGP, OSPF, EIGRP, VLANs, and VRFs.
• Strong enterprise wireless networking experience.
• Experience with Aruba Central and/or Aruba ClearPass.
• Strong network troubleshooting and incident-resolution capabilities.
• Experience integrating enterprise networks with firewall/security infrastructure.
• Ability to independently handle complex network escalations.

Good to Have

• Industrial, manufacturing, or OT networking experience.
• Purdue Model architecture knowledge.
• Industrial DMZ / iDMZ experience.
• Palo Alto Networks exposure.
• SD-WAN and enterprise WAN optimization experience.
• SolarWinds and Cisco DNA Center experience.
• CCNP / CCIE certification.
• Aruba ACMP / ACDP certification.

Location: Hyderabad
Employment: Full-Time
Work Model: On-site / Hybrid