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Senior Network Support Lead – L3 (Cisco & Fortinet)

SRI Tech Solutions

New York, New York • 3d ago

Easy Apply

Full-time

Depends on Experience

Network Support Lead – L3 (Cisco & Fortinet)

SKANDA SOLUTIONS LLC

New York, New York • Yesterday

Easy Apply

Full-time, Third Party

110,000 - 130,000

Job Details

Skills

Fortinet
Aruba
Cisco Certifications
Cisco
ITIL
Juniper
OSPF
Python
VLAN
Wireless Communication
WAN
VoIP
Firewall
Data Link Layer
Cisco IOS

Summary

Senior Network Support Lead – L3 (Cisco & Fortinet)

Position Overview

Lead L3 network support, advanced troubleshooting, firewall management, network security, and infrastructure optimization. Own critical incident resolution, support network architecture and migrations, and mentor junior engineers.

Key Responsibilities

Handle L3 escalations involving OSPF, BGP, VLANs, STP, QoS, NAT, ACLs, and VPNs.
Lead P1/P2 incidents, root cause analysis, and packet analysis using Wireshark, FortiAnalyzer, and Syslog.
Manage Fortinet FortiGate firewalls, security policies, NAT, VPNs, UTM profiles, and HA.
Review HLD/LLD designs for network upgrades, migrations, segmentation, and new sites.
Optimize network performance, capacity, reliability, and security.
Develop automation scripts using Python, Bash, and EEM for backups, compliance, and monitoring.
Lead network changes, firewall migrations, routing redesigns, and upgrades, including RFCs and rollback plans.
Coordinate with Cisco/Fortinet TAC, ISPs, and cross-functional teams.
Maintain network documentation, SOPs, runbooks, and configuration standards.
Mentor L1/L2 engineers and improve operational processes.

Required Qualifications

10–12 years of networking experience, including 3–4 years in L3/senior escalation roles.
Strong hands-on experience with Cisco IOS/XE, NX-OS, OSPF, BGP, VLANs, STP, and EtherChannel.
Expertise in Fortinet FortiGate/FortiOS and Meraki wireless.
Experience with SD-WAN, VXLAN, Cisco DNA Center (DNAC), and Cisco ISE.
Strong knowledge of network security, VPNs, QoS, segmentation, and high availability.
Experience with NMS/SNMP monitoring, Syslog, and packet capture tools.
Working knowledge of Python, Bash, and EEM automation.
CCNA certification or equivalent hands-on experience.
Strong troubleshooting, incident management, communication, and mentoring skills.

Preferred Qualifications

CCNP Enterprise certification.
Fortinet NSE 4 or higher certification.
Experience with Aruba Wireless, Extreme Networks, or Juniper.
Knowledge of SIP, VoIP, and voice troubleshooting.
ITIL v4 Foundation certification (optional).

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

Dice Id: 10354711
Position Id: 9119661
Posted 3 days ago

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Contact the job poster

Siva Gandreddi

Recruiter @ SRI Tech Solutions

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New York, New York

•

Yesterday

Job Title : Network Support Lead L3 (Cisco & Fortinet)Location: Brooklyn NY (Onsite)Required Qualifications1012 years of networking experience, including 34 years in L3 or senior escalation roles.Extensive hands-on experience with Cisco IOS/XE and NX-OS.Strong expertise in routing protocols, including OSPF and BGP, and switching technologies, including VLANs, STP, and EtherChannel.Strong experience with Fortinet FortiGate (FortiOS) and Meraki wireless.Experience with SD-WAN, VXLAN, Cisco DNA Ce

Easy Apply

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