HTC Global Services · 3 hours ago
Network Support Lead - L3
Brooklyn, NY
Full-time
Onsite
Senior Level, Lead/Staff
10+ years expHTC Global Services is seeking an experienced Network Support Lead (L3) to provide advanced technical leadership and serve as the final escalation point for complex network issues. The role involves troubleshooting, architecture support, firewall management, and mentoring junior engineers in a high-pressure environment.
Information TechnologyInsuranceSoftware
Responsibilities
Act as final L3 escalation for complex network issues involving QoS, OSPF, BGP, VLANs, STP, port channels, NAT, ACLs, and VPNs
Perform advanced packet and traffic analysis using tools such as Wireshark, FortiAnalyzer, and Syslog
Lead P1/P2 incident bridge calls, drive root cause analysis, and ensure timely resolution
Contribute to and review HLD/LLD for new sites, migrations, segmentation initiatives, and firewall architectures
Validate designs for scalability, security, and adherence to enterprise standards
Recommend improvements across routing, switching, wireless, and security domains
Manage and optimize Fortinet FortiGate environments, including policies, NAT, UTM profiles, VPNs, routing, and HA
Audit firewall rules to ensure least-privilege access and compliance
Support segmentation, hardening, and compliance initiatives
Perform capacity planning, traffic analysis, and performance tuning
Monitor network health and proactively address chronic or systemic issues
Implement long-term preventive and resiliency measures
Develop and maintain automation scripts (Python, Bash, EEM) to streamline operations
Automate configuration backups, compliance checks, and monitoring integrations
Lead major network changes, upgrades, firewall migrations, and routing redesigns
Prepare RFCs, rollback plans, risk assessments, and post-change reports
Coordinate with application, infrastructure, security, and ISP teams
Work with ISPs and OEMs (Cisco, Fortinet) on escalations, TAC cases, and hardware issues
Validate circuit performance and support last-mile troubleshooting
Maintain network diagrams, SOPs, configuration standards, and runbooks
Improve L1/L2 documentation and operational processes
Mentor L1/L2 engineers and promote best practices in troubleshooting and operations
Contribute to training plans, standards, and continuous improvement initiatives
Qualification
Required
10–12 years of networking experience, including 3–4 years in L3 or senior escalation roles
CCNA or equivalent hands-on experience (required)
Extensive hands-on experience with Cisco IOS/XE and NX-OS
Strong expertise in routing (OSPF, BGP), switching (VLANs, STP, EtherChannel)
Strong experience with Fortinet FortiGate (FortiOS) and Meraki wireless
Experience with SD-WAN, VXLAN, Cisco DNaC and Cisco ISE
Solid understanding of network security, VPNs, QoS, and segmentation
Experience with NMS/SNMP monitoring, Syslog, and packet capture tools
Working knowledge of automation and scripting (Python, Bash, EEM)
Strong analytical and structured troubleshooting approach
Excellent communication during high-severity incidents
Proactive, detail-oriented, and automation-focused
Strong collaboration and mentoring mindset
Ability to perform occasional lifting of network equipment (up to 50 lbs), if required
Preferred
CCNP Enterprise (strongly preferred)
Fortinet NSE 4 or higher (preferred)
Aruba Wireless
Extreme Networks
Juniper Networks
Voice and unified communications technologies, including SIP, VoIP call flows, and basic voice troubleshooting (e.g., call quality, latency, jitter, packet loss)
ITIL v4 Foundation
Benefits
Group Health (Medical, Dental, and Vision)
Paid Time Off
Paid Holidays
401(k) matching
Group Life and Disability insurance
Professional Development opportunities
Wellness programs
A variety of other perks
Company
HTC Global Services
HTC Global Services Inc., is a global provider of Information Technology and Business Process Services and Solutions.
10001+ employees
H1B Sponsorship
HTC Global Services has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (361)
2024 (367)
2023 (440)
2022 (314)
2021 (227)
2020 (438)
Funding
Current Stage
Late StageTotal Funding
$1.2MKey Investors
Michigan Economic Development Corporation
2024-12-10Grant· $1.2M
Leadership Team
Gunasekaran Nadar
CHIEF FINANCIAL OFFICER
Girish Arora
Vice President, Financial Services and Insurance
Recent News
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