Senior Network Engineer (L3)

GSPANN is hiring a Senior Network Engineer (L3) to lead enterprise network operations and design, focusing on resolving critical incidents, modernizing infrastructure, strengthening security, and automating routine network tasks.

• Lead technical direction for enterprise-wide network infrastructure and operations.
• Manage the troubleshooting and resolution of complex Priority 1, Priority 2, and Priority 3 (P1, P2, and P3) network incidents.
• Drive detailed Root Cause Analysis (RCA) for recurring and critical network issues.
• Design, review, and optimize routing, switching, firewall, load balancing, wireless, and SD-WAN solutions.
• Lead network modernization, transformation, and optimization initiatives.
• Optimize network architecture by reviewing designs and recommending improvements to performance, scalability, and reliability.
• Ensure resolution of advanced networking issues related to Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), Enhanced Interior Gateway Routing Protocol (EIGRP), Virtual Local Area Networks (VLANs), Spanning Tree Protocol (STP), Multiprotocol Label Switching (MPLS), SD-WAN, Virtual Private Networks (VPNs), Quality of Service (QoS), firewalls, wireless, and high-availability technologies.
• Design and review firewall policies, VPN architectures, and network segmentation strategies.
• Drive Zero Trust initiatives, Network Access Control (NAC) deployments, security hardening, and compliance remediation activities.
• Lead firmware upgrades, operating system upgrades, hardware refresh projects, and lifecycle management activities.
• Optimize infrastructure through capacity planning, capacity forecasting, trend analysis, and performance tuning to improve network reliability.
• Develop and implement automation solutions using Python, PowerShell, Ansible, and Representational State Transfer (REST) Application Programming Interfaces (APIs) for configuration deployments, health checks, compliance validation, backups, and provisioning.
• Implement and optimize monitoring solutions using SolarWinds, LogicMonitor, Splunk, Grafana, PRTG, and Cisco DNA Center.
• Build dashboards, refine alerting mechanisms, and drive proactive monitoring practices.
• Support Level 2 (L2) Network Engineers through mentoring and technical guidance.
• Lead Major Incident Management (MIM) calls and technical review meetings.
• Ensure operational excellence by reviewing change requests and RCA reports.
• Collaborate with vendors and third-party support teams on escalations and issue resolution.
• Support on-call rotations as a Level 3 (L3) escalation resource.

• Hold a Cisco Certified Network Professional (CCNP) Enterprise certification.
• Holding a Cisco Certified Internetwork Expert (CCIE) Enterprise, Palo Alto Networks Certified Network Security Engineer (PCNSE), Fortinet Network Security Expert (NSE), F5 Administrator, or Information Technology Infrastructure Library (ITIL) Foundation certification is an advantage.
• Bring 8+ years of experience in enterprise network engineering and operations.
• Demonstrate strong expertise in routing and switching technologies, including BGP, OSPF, EIGRP, VLANs, STP, Hot Standby Router Protocol (HSRP), and Virtual Extensible LAN (VXLAN).
• Work with Cisco Catalyst, Cisco Nexus, Aruba, and Juniper networking platforms.
• Manage enterprise firewall solutions such as Palo Alto, Fortinet, Cisco Firepower, and Check Point.
• Apply strong knowledge of SD-WAN, MPLS, VPNs, and WAN optimization solutions.
• Work with wireless networking technologies, including Cisco Wireless LAN Controller (WLC) and Aruba Wireless.
• Bring expertise in load balancing technologies such as F5 BIG-IP and Citrix Application Delivery Controller (ADC).
• Demonstrate hands-on experience with Microsoft Azure networking, including Azure ExpressRoute, Azure VPN Gateway, and hybrid cloud connectivity.
• Develop, implement, and manage network monitoring and observability platforms.
• Apply a strong automation background using Python, Ansible, PowerShell, Git, and REST APIs.
• Demonstrate proven experience handling major incidents, performing RCAs, and driving infrastructure improvements.
  Bring experience leading network refresh, modernization, and transformation programs.
• Demonstrate the ability to mentor junior engineers and act as a technical escalation point.
• Apply strong stakeholder management, documentation, and communication skills.
• Bring experience working in large-scale global enterprise environments.