Network Engineer

GSPANN is looking for Network Engineer - L3 Support.

Experience: 8+ Years

Job location: Hyderabad/Gurugram

Required skills: Cisco switches, APs, wireless controllers, Palo Alto and Azure firewalls, Infoblox, Microsoft DNS/DHCP, Load balancers (F5, Azure), Cisco ISE, TACACS.

We are seeking a highly experienced L3 Network Engineer to lead the resolution of complex network issues, drive proactive infrastructure improvements, and support strategic initiatives across on-premises and cloud environments. This role involves deep technical expertise in firewalls, switches, wireless infrastructure, cloud networking, and automation. The L3 Engineer will serve as a senior escalation point, mentor junior staff, and collaborate with OEMs and cross-functional teams to ensure optimal performance, availability, and security of the network.

Key Responsibilities:

Advanced Troubleshooting & Escalation

• Act as the final escalation point for L0-L2 teams for all network-related incidents.
• Lead root cause analysis and problem management for recurring or high-impact issues.
• Coordinate with OEMs (Cisco, Palo Alto, Microsoft, etc.) to resolve issues within SLA.

Infrastructure Management

• Manage and optimize:
• Firewalls (Palo Alto Cloud & On-Prem, Azure Firewall)
• Cisco Network Switches & Access Points
• Wireless Controllers & DNAC
• Network Authentication Services (Cisco ISE, TACACS)
• Load Balancers (F5, Azure)
• DDI Services (Infoblox, MS DNS/DHCP)
• Cloud Networking (Azure, AWS)
• Oversee commissioning/decommissioning of physical and virtual assets.

Automation & Tooling

• Design and implement automation for:
• Health monitoring and incident healing
• Asset lifecycle management
• Patching and upgrades
• Batch job execution and provisioning
• Contribute to Infrastructure as Code (IaC) and FinOps initiatives.

Operational Excellence

• Ensure 24/7/365 monitoring and operations across global time zones.
• Execute expedite changes and fulfill service requests with minimal disruption.
• Lead capacity, performance, and availability management efforts.

Governance & Compliance

• Maintain and enforce:
• SOPs, hardening documents, and patching policies
• License, warranty, and contract tracking
• DR and backup restoration drill plans
• Support ITIL-aligned processes: Incident, Problem, Change, Configuration, Availability, and Service Level Management.

Continuous Improvement & Leadership

• Drive continuous service improvement initiatives.
• Mentor and train L0-L2 engineers.
• Lead upgrade and refresh projects to maintain supported versions and hardware.

Required skills:

• 8+ years of experience in enterprise network engineering.
• Expert-level knowledge of:
• Cisco networking (Switches, APs, DNAC)
• Palo Alto and Azure firewalls
• Infoblox, Microsoft DNS/DHCP
• Wireless LAN and controllers
• Cloud networking (Azure, AWS)
• Strong scripting and automation skills (Python, Ansible, etc.).
• Experience with monitoring, asset management, and orchestration tools.
• Deep understanding of ITIL processes and enterprise operations