Network L3 Support_P_3rd Nov

20 hours ago

Gurgaon, Haryana, India TalentOnLease Full time ₹ 12,00,000 - ₹ 36,00,000 per year

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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