Senior Network Security Engineer (Permanent WFH and Night Shift)

SUMMARY

We are looking for an experienced Senior Network Security Engineer to join our global network infrastructure team. This role manages network operations and security for a cloud service provider with five data centers in the United States. It supports multi-tenant cloud environments, including firewalls, VPNs, and secure connectivity between cloud platforms and customer on prem networks.

• Firewall and Security Management
• Deploy and manage multi-tenant firewalls using Cisco ASA, Cisco FTD, and Fortinet
• Operate and manage large-scale virtual firewall environments, including virtual Cisco ASA instances and firewall contexts.
• Design, configure, and troubleshoot IPSec Site to Site and Remote Access VPNs
• Support secure VPN connectivity for customers between cloud and on prem systems
• Data Center Network Operations
• Manage daily network operations across multiple data centers
• Operate Layer 2 and Layer 3 networks with high availability designs
• Manage core and access switching using Cisco Nexus 9000 and vPC
• Maintain inter data center connectivity using MP BGP and MPLS L2/L3 VPNs
• Manage multiple 10G+ internet links with BGP peering across different ISPs.
• Multi-Tenant Routing & Switching: BGP (Traffic Engineering, Route Reflectors), MPLS, VRF segmentation
• Support and maintain Cisco ASR, Nexus, and Catalyst platforms
• Troubleshoot packet loss, latency, routing, VPN, and L2/L3 issues
• Perform system upgrades, patching, and lifecycle management
• Work with ISPs and MPLS providers for connectivity issues and escalations
• Next-Gen MSP Architecture: Multi-tenant, automated, large-scale SD-WAN deployment and centralized edge cloud architecture.
• Architecture & Scalability
• Contribute to next-generation MSP architecture
• Support large-scale, multi-tenant SD-WAN deployments
• Participate in centralized edge and cloud network architecture design

• 10+ years of hands-on experience in cloud, enterprise or service provider networks.
• Deep experience with firewalls: Cisco ASA, Firepower/FTD, Fortinet FortiGate.
• Experience with high-end Cisco platforms (ASR, Nexus 9000, Catalyst).
• Strong knowledge of routing & switching fundamentals and advanced protocols: BGP, OSPF, EIGRP, STP, VLANs, MPLS services.
• 10+ years of hands-on experience in cloud, enterprise, or service provider network environments
• Strong expertise with firewall technologies: Cisco ASA, Cisco Firepower/FTD, Fortinet FortiGate
• Deep experience with Cisco platforms (ASR, Nexus 9000, Catalyst)
• Strong knowledge of networking protocols and technologies:
• BGP, OSPF, EIGRP
• MPLS (L2/L3 VPNs)
• VLANs, STP, VRFs
• Proven troubleshooting and problem-solving skills in complex environments

• Should be willing to accept a long-term work-from-home arrangement.
• Should be amenable to a permanent night shift schedule.