Senior Network Infrastructure Engineer for AI‑Driven Infra

fal; United States; Remote; USD 120,000 - 210,000; Full time

Job summary

fal is building a global networking fabric for a scalable AI platform. You will design, deploy, and operate public and private networks across data centers and cloud environments, focusing on performance, security, and reliability.

The role demands 5+ years of production network experience, strong Linux networking, BGP mastery, IPAM and private peering. You will automate provisioning and monitoring, and collaborate with teams to meet connectivity requirements.

Qualifications

• 5+ years building and operating production network infrastructure.
• Strong Linux networking: routing tables, policy routing, network namespaces, bonding, VLANs, bridges, firewalling, NAT, conntrack.
• Deep BGP knowledge: route selection, communities, filtering, convergence, multipath, troubleshooting.
• Experience managing ASNs, public IP space, BGP announcements, IPAM, RPKI/ROAs, IRR records.
• Experience designing private IPv4/IPv6 address plans and preventing cross-customer/region conflicts.

Responsibilities

• Design, build, validate, and operate public and private networks across the public platform and private compute clusters
• Use AI aggressively to automate and accelerate network provisioning, configuration, validation, monitoring, and recovery
• Manage ASNs, public IP prefixes, and private address space (allocation, registration, announcement, lifecycle)
• Build and operate BGP routing: route policies, communities, filtering, traffic engineering, and failover
• Announce customer and company IP ranges from physical infrastructure and cloud providers, including BYOIP integrations
• Establish private peering with customers, partners, data centers, internet exchanges, and cloud providers
• Build private and overlay networks using VXLAN, IPsec, WireGuard, and Tailscale
• Operate DNS networking patterns including anycast DNS and mDNS
• Tune the Linux networking stack for high throughput, low latency, and large connection counts
• Build network observability and diagnostics using metrics, logs, flow data, active probes, and packet captures
• Develop reusable tooling, standards, documentation, and runbooks
• Collaborate with customers and internal teams to translate connectivity, security, isolation, and performance requirements into sound network designs

Skills

Linux networking

BGP

IPAM

VXLAN

IPsec/WireGuard/Tailscale

DNS

Ansible

Performance tuning

Troubleshooting

Networking hardware

Python or Go

Tools

Arista

Juniper

Job description

fal is building a global networking fabric for a scalable AI platform. You will design, deploy, and operate public and private networks across data centers and cloud environments, focusing on performance, security, and reliability.

The role demands 5+ years of production network experience, strong Linux networking, BGP mastery, IPAM and private peering. You will automate provisioning and monitoring, and collaborate with teams to meet connectivity requirements.