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Network L3 Support_P_3rd Nov

10 years

0 Lacs

gurugram haryana india

Posted:1 day ago| Platform: Linkedin logo

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Skills Required

network support cisco troubleshooting routing switching security analyze configuration aggregation monitoring resolve reliability audits compliance collaboration mentoring training documentation management vpn tuning ospf bgp ipsec dashboard solarwinds dhcp snmp ntp qos segmentation technology certifications mobility communication

Work Mode

Remote

Job Type

Full Time

Job Description

Key Responsibilities:

  • L3 Network Support & Troubleshooting:

  • Provide advanced (Level 3) support for escalated incidents related to Cisco Firewalls, Meraki Switches, and Aruba Wireless networks.
  • Perform deep-dive troubleshooting for routing, switching, wireless, and security-related issues.
  • Analyze root causes and implement permanent fixes for recurring problems.

  • Configuration & Maintenance:

  • Configure, manage, and maintain

    Cisco ASA / Firepower / FTD

    firewalls including VPNs, ACLs, and NAT policies.
  • Manage

    Meraki MS series switches

    —VLANs, trunking, L3 routing, link aggregation, and port security.
  • Deploy and support

    Aruba Wireless

    infrastructure including controllers, access points, and wireless SSIDs.

  • Monitoring & Performance Optimization:

  • Monitor network health using tools like

    Meraki Dashboard

    ,

    Aruba Central

    , and

    SolarWinds

    .
  • Identify and resolve performance bottlenecks and connectivity issues.
  • Optimize configurations to improve reliability, redundancy, and security.

  • Security & Compliance:

  • Manage network security configurations and policies.
  • Conduct periodic audits and ensure compliance with organizational security standards.

  • Collaboration & Documentation:

  • Collaborate with L2 teams for escalations and provide mentoring or training as needed.
  • Maintain updated documentation on configurations, network diagrams, and standard operating procedures.

  • Technical Skills Required:


    • Firewalls:

      Cisco ASA / Firepower / FTD (Policy Management, VPN, NAT, Access Control)

    • Switching:

      Cisco Meraki MS Series (L2/L3 switching, VLANs, Spanning Tree, EtherChannel)

    • Wireless:

      Aruba Access Points & Controllers (SSID management, radio tuning, roaming, authentication)

    • Routing Protocols:

      OSPF, BGP, EIGRP

    • VPN Technologies:

      IPsec, SSL VPN, Remote Access VPNs

    • Monitoring Tools:

      Cisco Meraki Dashboard, Aruba Central, SolarWinds, PRTG

    • Other:

      DNS, DHCP, SNMP, NTP, QoS, Network Segmentation, HA/Redundancy Concepts


    Qualifications:

    • Bachelor’s degree in Computer Science, Information Technology, or related field.
    • 7–10 years of hands-on experience in enterprise network support (L3 level).

    • Certifications Preferred:

    • Cisco Certified Network Professional (

      CCNP Security / CCNP Enterprise

      )
    • Meraki Certified (CMNA/CMNO)
    • Aruba Certified Mobility Professional (

      ACMP

      ) or equivalent
    • Strong problem-solving and analytical skills.
    • Excellent communication and documentation skills.

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