Network Operations Engineer

Senior Network Engineer (L3) Enterprise Networking & Security Location: Noida Experience: 710 Years Employment Type: Full-Time About the Role We are seeking a highly skilled Senior Network Engineer (L3) to join our enterprise networking team and support the design, implementation, optimization, and troubleshooting of complex global network environments. The ideal candidate will possess deep expertise in routing, switching, SDWAN, network security, and enterprise infrastructure operations, with the ability to manage critical incidents and drive network transformation initiatives. This role offers exposure to large-scale enterprise networks, advanced security technologies, network modernization programs, and collaboration with global stakeholders. Key Responsibilities Network Design & Operations Design, implement, and maintain enterprise network infrastructure across data centers, branch offices, cloud, and hybrid environments. Manage and support Cisco routers, switches, wireless infrastructure, Palo Alto firewalls, and WAN technologies. Configure, optimize, and troubleshoot routing and switching environments involving BGP, OSPF, EIGRP, MPLS, VLANs, VSS, and network segmentation. Support SDWAN deployments, primarily Versa SDWAN, including configuration, implementation, and troubleshooting. Incident Management & Troubleshooting Perform advanced L2/L3 troubleshooting for complex network incidents. Conduct packet analysis, root cause analysis, and performance diagnostics. Ensure timely resolution of incidents while adhering to defined SLAs and operational standards. Participate in major incident management and escalation processes. Network Security Implement and manage enterprise security solutions including: Palo Alto Firewalls Cisco ASA Firewalls Site-to-Site VPNs Remote Access VPNs Network Access Controls Maintain firewall policies, security standards, and network segmentation strategies. Support security and compliance requirements, including PCI-regulated environments. Performance & Optimization Monitor network performance and availability across global environments. Drive proactive improvements to network stability, reliability, and bandwidth optimization. Support capacity planning and IP address management activities. Recommend architecture enhancements and costoptimization opportunities. Documentation & Collaboration Maintain accurate network documentation, architecture diagrams, SOPs, and incident reports. Collaborate with global teams, vendors, and business stakeholders for network enhancements and issue resolution. Provide technical leadership, mentoring, and knowledge sharing for junior engineers. Automation & Innovation Contribute to network automation initiatives using Python, Ansible, and related tools. Identify opportunities to improve operational efficiency through automation and process optimization. Required Skills & Experience Networking 7+ years of handson experience in enterprise network engineering or L3 network operations. Strong expertise in: BGP OSPF EIGRP MPLS Routing & Switching VLANs VSS WAN Technologies SDWAN Handson experience with SDWAN technologies. Versa SDWAN experience strongly preferred. Security Strong experience with: Palo Alto Firewalls Cisco ASA VPN Technologies Firewall Policy Management Network Security Operations Wireless & Infrastructure Experience with enterprise wireless controllers and wireless networking environments. Exposure to large-scale enterprise and data center networks. Troubleshooting Expertise in: L3 troubleshooting Packet captures and analysis Root Cause Analysis (RCA) Incident and Problem Management Preferred Qualifications Experience supporting PCIcompliant or highly regulated environments. Exposure to cloud networking and hybrid infrastructure environments. Experience with network automation using Python and/or Ansible. Knowledge of network monitoring and management tools. Relevant certifications are highly desirable: CCNP Enterprise CCIE Enterprise Infrastructure Palo Alto Certifications (PCNSE) Versa Certifications Preferred Background Candidates from the following environments are preferred: Large Enterprises Global Capability Centers (GCCs) ProductBased Organizations Managed Network Services Providers Enterprise NOCs supporting global customers