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naukri

Network Engineer L3

Star
Jubail, KSA
Senior
6 days ago
Network MonitoringNetwork ConsultantNetwork SecurityLead Network EngineerNetwork Operations Engineer
Free

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Network MonitoringNetwork ConsultantNetwork Security
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1. Network Design & Architecture

  • Own HLD/LLD for enterprise LAN/WAN, DC, and cloud connectivity
  • Design redundant, scalable topologies — spine-leaf, hub-spoke, SD-WAN
  • Define IP addressing, VLAN structure, routing domains, and segmentation strategy

2. Escalation & Incident Ownership

  • Final escalation point for L1/L2 — you close it, not pass it
  • Lead P1/P2 bridge calls, drive RCA, own post-mortem
  • Coordinate with NOC, security, and vendors during major incidents

3. Routing & Switching (Advanced)

  • Manage and tune BGP policies, OSPF areas, MPLS/VRF, redistribution
  • Handle complex STP issues, VPC/MLAG, LACP, and trunk failures
  • Own inter-DC and ISP peering configurations

4. Security & Compliance

  • Enforce segmentation — VRF, VLAN isolation, firewall zones
  • Review and approve ACLs, firewall rules, NAC policies
  • Support audits — PCI, ISO 27001, NIST alignment on network layer

5. Cloud & Hybrid Networking

  • Own AWS/Azure network integration — VPN Gateway, ExpressRoute, Transit Gateway
  • Design and troubleshoot hybrid connectivity — on-prem to cloud routing
  • Collaborate with cloud architects on network policy

6. Automation & Tooling

  • Build and maintain automation — Python, Ansible, Netmiko
  • Automate config backups, compliance checks, provisioning workflows
  • Integrate with ITSM/IPAM/NMS platforms

7. Monitoring & Performance

  • Own network observability — NetFlow, SNMP, syslog pipelines
  • Proactive capacity planning — identify bottlenecks before they become incidents
  • Define and track SLAs, latency, packet loss thresholds

8. Documentation & Change Management

  • Maintain accurate network diagrams, IP plans, and runbooks
  • Author and review RFCs/change records — no undocumented changes
  • Keep post-mortems and lessons-learned documented

9. Vendor & Stakeholder Management

  • Own TAC cases — Cisco, Palo Alto, Juniper, Fortinet
  • Evaluate new hardware/software — PoC, testing, recommendation
  • Present technical decisions to management and non-technical stakeholders

10. Mentorship & Leadership

  • Technically guide L3 engineers — knowledge transfer, not just answers
  • Conduct design and config peer reviews
  • Set team standards — naming conventions, hardening baselines, change process

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