Senior Network Engineer / Network Security Engineer (Cisco SDA, ACI, Palo Alto)

Job Summary

We are seeking a highly skilled Senior Network Engineer with deep expertise in Cisco SDA, Cisco ACI, Palo Alto Firewalls, and enterprise networking technologies. The ideal candidate will handle advanced (L3/P1) troubleshooting, network design, security implementation, and operational support across LAN, WAN, Data Center, and security environments.

Key Responsibilities

• Network Architecture & Implementation
  • Implement and support: Cisco SDA (DNA Center, ISE, fabric onboarding), Cisco ACI (APIC, EPGs, contracts, fabric design)
• Firewall & Security Management
  • Administer Palo Alto Firewalls: Security policies, NAT, routing VPN (IPSec, site-to-site, remote access), Panorama and threat prevention
• Wireless Network Management
  • Manage enterprise WLAN environments: Cisco / Aruba
  • Perform: RF optimization, Roaming troubleshooting, High-density deployments
• VPN & Connectivity
  • Design and troubleshoot: IPSec VPNs, Multi-vendor VPN environments
• Infoblox (DDI) Administration
  • Manage: DNS, DHCP, IPAM
  • Handle: Grid management, Failover and high availability
• Advanced Troubleshooting (L3/P1)
  • Lead troubleshooting of critical issues across: LAN / WAN / Data Center / Security
  • Perform: Real-time packet analysis using Wireshark
  • Drive resolution during high-pressure incidents
• Operations & Support
  • Manage: Network devices and upgrades
  • Support: Incident resolution and root cause analysis
  • Assist L1/L2 teams in resolving issues
• Collaboration & Leadership
  • Lead technical troubleshooting calls
  • Coordinate with cross-functional teams
  • Communicate technical issues effectively to stakeholders

Required Skills

• Networking (Core): TCP/IP, BGP, OSPF, VLANs, QoS, Multicast
• Cisco Technologies: Cisco SDA (DNA Center, ISE), Cisco ACI (APIC, EPGs, Contracts)
• Security: Palo Alto Firewalls (PAN-OS, Panorama), IPSec VPN
• Wireless: Enterprise WLAN (Cisco / Aruba)
• DDI: Infoblox (DNS, DHCP, IPAM)
• Tools: Wireshark (packet capture & analysis)
• Soft Skills: Strong troubleshooting skills, Communication & stakeholder management, Ability to work under pressure

Experience Required

7–12+ years of experience in: Network Engineering / Network Security. Strong hands-on experience in: Cisco & Palo Alto environments.

Preferred Skills

Multi-vendor network environments, Automation exposure (good to have), Experience in high-availability and enterprise networks.