Sr. Network Engineer

About the role

We are seeking an experienced Senior Network & Security Engineer to join our global network infrastructure team. This remote, full‑time position manages network operations and security for a cloud service provider operating five U.S. data centers. You will support multi‑tenant cloud environments, firewalls, VPNs, and secure connectivity between cloud platforms and customer on‑premises networks.

Key responsibilities

• Deploy and manage multi‑tenant firewalls (Cisco ASA, Cisco FTD, Fortinet FortiGate) and large virtual firewall environments (200+ Cisco ASAv instances).
• Design, configure, and troubleshoot IPSec site‑to‑site and remote‑access VPNs, NAT, ACLs, and network segmentation.
• Manage daily network operations across multiple data centers, operating Layer 2/Layer 3 networks with high‑availability designs.
• Maintain core and access switching using Cisco Nexus 9000 and vPC, and inter‑data‑center connectivity with MP‑BGP and MPLS L2/L3 VPNs.
• Handle multiple 10G+ internet links with BGP peering across different ISPs, and support Cisco ASR, Nexus, and Catalyst platforms.
• Troubleshoot packet loss, latency, routing, VPN, and L2/L3 issues; perform system upgrades, patching, and lifecycle management.
• Coordinate with ISPs and MPLS providers for connectivity issues and escalations.

Required profile

• 10+ years of hands‑on experience in cloud, enterprise, or service‑provider networks.
• Deep experience with Cisco ASA, Firepower/FTD, and Fortinet FortiGate firewalls.
• Extensive work with high‑end Cisco platforms (ASR, Nexus 9000, Catalyst).
• Strong knowledge of routing and switching fundamentals and advanced protocols: BGP, OSPF, EIGRP, STP, VLANs, MPLS services.
• Effective communication and collaboration skills with global teams.
• Degree in Computer Science, Engineering, or a related field (preferred).

Required skills

• Cisco ASA
• Cisco Firepower/FTD
• Fortinet FortiGate
• Cisco ASAv
• IPSec Site‑to‑Site VPN
• Remote‑Access VPN
• NAT
• Access Control Lists (ACLs)
• Network segmentation
• Cisco Nexus 9000
• vPC
• MP‑BGP
• MPLS L2/L3 VPN
• BGP
• OSPF
• EIGRP
• STP
• VLANs
• Cisco ASR
• Cisco Catalyst
• 10G+ internet links
• Packet loss and latency troubleshooting
• Routing, VPN, L2/L3 troubleshooting
• System upgrades and patching

What we offer

• Work with cutting‑edge enterprise and cloud technologies.
• Collaborate with diverse global teams.
• Contribute to high‑impact projects with significant technical depth.