JobTitle : Lead Network & Security Engineer (L3 Architect)
SRI Tech Solutions Inc.
Buffalo, NY, United States
18 days ago
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Role details
Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience level
Expert
Experience required
3 years minimum
Working hours
Regular working hours
Job source
Tech stack
Bash Shell
Border Gateway Protocol
Cisco IOS
Cluster Analysis
Data Centers
Network Address Translation
EtherChannel
Monitoring of Systems
Virtual Private Networks (VPN)
Python (Programming Language)
Network Security
Network Monitoring
+18 more
Routing
Cisco Nexus Switches
Open Shortest Path First (OSPF)
Overlay Transport Virtualization
Runbook
Virtual Local Area Networks
Wide Area Networks
Scripting
Nx-os
Firewalls (Computer Science)
Amazon Virtual Private Cloud (VPC)
Juniper
Data Center Networking
SolarWinds (Software)
Palo Alto Networks
Fortinet
Cisco
Network Optimization
Job description
Take ownership of complex enterprise network and security environments while leading L3 support, architecture reviews, and infrastructure assessments. This role combines hands-on engineering with technical leadership across Cisco data center networking, Fortinet and Palo Alto firewalls, network optimization, and automation initiatives., * Lead enterprise network and firewall assessments across Fortinet and Palo Alto environments
- Perform advanced L3 troubleshooting for routing, switching, VPN, QoS, NAT, ACL, and network performance issues
- Support Cisco Nexus data center architecture including NX-OS, VPC, VXLAN/EVPN, and HA designs
- Review firewall governance, security policies, SD-WAN posture, and segmentation strategies
- Configure and support SolarWinds and other network monitoring/discovery tools
- Lead major network changes, migrations, upgrades, and change management activities
- Develop network standards, documentation, runbooks, and configuration templates
- Mentor L1/L2 engineers and act as the final technical escalation point
Requirements
- 10-12 years of networking experience with 3-4 years in an L3 or Architect-level role
- Extensive hands-on experience with Cisco IOS/XE, NX-OS, and Cisco Nexus platforms
- Strong expertise with Fortinet FortiGate and Palo Alto Networks firewalls
- Experience with SolarWinds or comparable monitoring tools, including network discovery
- Strong knowledge of OSPF, BGP, VLANs, STP, EtherChannel, SD-WAN, VPNs, and HA clustering
- Working knowledge of automation and scripting using Python, Bash, or EEM
- CCNA or equivalent hands-on experience, * CCNP Enterprise
- Fortinet NSE 4 or higher
- Aruba Wireless, Extreme Networks, or Juniper Networks experience
- ITIL v4 Foundation
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