About the RoleOperations & Uptime Maintain and support Routing and Switching, Cisco Catalyst/Nexus, Juniper EX, Cisco Routers, Juniper MX, and firewalls (Fortinet, Palo Alto PAN‑OS, Cisco ASA/FTD, Juniper SRX, Check Point). Ensure 99.9%+ availability through proactive monitoring, capacity planning, and preventive maintenance.ResponsibilitiesOperations & UptimeMaintain and support Cisco Catalyst/Nexus, Juniper EX, Cisco Routers, Juniper MX, and firewalls (Fortinet, Palo Alto PAN‑OS, Cisco ASA/FTD, Juniper SRX, Check Point).Ensure 99.9%+ availability through proactive monitoring, capacity planning, and preventive maintenance.Incident Response & TroubleshootingTriage, isolate, and resolve L2/L3 connectivity, security policy, NAT, VPN, HA failover, and performance issues.Perform root cause analysis (RCA) and implement corrective/preventive actions.Configuration ManagementMaintain standardized, secure configurations (hardening baselines, AAA/TACACS+/RADIUS, Syslog,



NTP).Version control for configs; follow change management (ITIL) with rollback plans.Monitoring & ObservabilityImplement SNMP/NETCONF/REST APIs, Syslog, NetFlow/sFlow/IPFIX, and platform-specific telemetry.Define alert thresholds for CPU, memory, interfaces, PSU/temperature, VPN/HA state, and security events.Security & ComplianceEnforce firewall policies, segmentation (VLANs/VXLAN), micro/macro segmentation standards.Patch and upgrade devices, validate against compliance benchmarks (e.G., CIS).Automation & ScriptingUse Python/Ansible (or vendor tools) for backups, audits, bulk changes, and compliance checks.Documentation & Knowledge SharingMaintain network diagrams, IPAM, runbooks, RCA reports, and standards.Provide training and collaborate across NOC/Infra/Security/Application teams.QualificationsAny DegreeExperience3 Years to 6 Years

📌 Senior Network Engineer (Noida)
🏢 Tata Consultancy Services
📍 Noida