Senior Network Engineer

Overview:

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