Network Engineer - L3 Support

Cisco Switches, Access Points, Wireless Controllers, Palo Alto, Azure, Infoblox, Microsoft DNS/DHCP, Load Balancers (F5, Azure), Cisco ISE, TACACS

Description

GSPANN is hiring a Network Engineer – L3 Support with expertise in advanced enterprise networking, infrastructure automation, and cloud integration. This full-time role involves handling escalations, leading root-cause analysis, and optimizing hybrid network environments across global operations.

Location: Hyderabad / Gurugram

Role Type: Full Time

Published On: 3 July 2025

Experience: 8+ Years

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Description

GSPANN is hiring a Network Engineer – L3 Support with expertise in advanced enterprise networking, infrastructure automation, and cloud integration. This full-time role involves handling escalations, leading root-cause analysis, and optimizing hybrid network environments across global operations.

Role and Responsibilities

• Coordinate with Original Equipment Manufacturers (OEMs) such as Cisco, Palo Alto Networks, and Microsoft to resolve issues within defined Service Level Agreements (SLAs).
• Oversee and optimize enterprise network infrastructure, including firewalls (Palo Alto – Cloud and On-Premise, Microsoft Azure Firewall), Cisco switches, and access points.
• Support wireless LAN controllers and Cisco Digital Network Architecture Center (DNAC) for centralized wireless management.
• Manage network authentication platforms like Cisco Identity Services Engine (ISE) and Terminal Access Controller Access-Control System (TACACS).
• Handle load balancers across environments, including F5 and Microsoft Azure.
• Maintain DDI (DNS, DHCP, IPAM) services using Infoblox and Microsoft Domain Name System (DNS) / Dynamic Host Configuration Protocol (DHCP).
• Administer cloud networking setups on Microsoft Azure and Amazon Web Services (AWS).
• Manage the commissioning and decommissioning of physical and virtual network assets.
• Design and implement automation for real-time health monitoring and incident healing.
• Automate processes across asset lifecycle management, patching, upgrades, and provisioning.
• Execute batch jobs and integrate scripting to streamline operational tasks.
• Contribute to Infrastructure as Code (IaC) adoption and FinOps (Financial Operations) initiatives.
• Maintain seamless 24/7/365 network operations across global environments.
• Execute expedited change requests and fulfill service tickets with minimal business impact.
• Lead efforts around capacity planning, performance tuning, and network availability optimization.
• Maintain and enforce Standard Operating Procedures (SOPs), hardening policies, and patch compliance.
• Track licenses, warranties, and vendor contracts to ensure proactive renewals and compliance.
• Support Disaster Recovery (DR) readiness by conducting routine backup restoration drills.
• Follow ITIL (Information Technology Infrastructure Library) aligned processes such as Incident, Problem, Change, Configuration, Availability, and Service Level Management.
• Drive continuous service improvement initiatives across network infrastructure and operations.
• Mentor and train L0–L2 engineers to build technical depth and support maturity.
• Lead upgrades and refresh projects to maintain supported versions of hardware and software.
• Serve as the final escalation point for Level 0 to Level 2 (L0–L2) teams on all network-related incidents.
• Lead root-cause analysis (RCA) and manage problem resolution for recurring or high-impact issues.
  
  

Skills And Experience

• 8+ years of experience in enterprise network engineering roles.
• Expertise in Cisco networking technologies, including switches, access points, and DNAC.
• Hands-on with next-generation firewalls such as Palo Alto Networks and Microsoft Azure Firewall.
• Manage DDI solutions using Infoblox and Microsoft DNS/DHCP.
• Support enterprise wireless LANs and associated controllers.
• Operate effectively within cloud networking environments including Microsoft Azure and AWS.
• Develop and maintain automation scripts using Python, Ansible, or similar tools.
• Use network monitoring, asset management, and orchestration tools to drive operational efficiency.
• Demonstrate deep understanding of ITIL processes and large-scale enterprise IT operations.