Senior/Staff Software Engineer, Network Infrastructure

Highlights

• Build public and private networks linking fal data centers and clouds.
• Power serverless platform and custom compute clusters at global scale.
• Make fal's network fast, reliable, secure, and easy to operate.

What they offer

• Equity
• Comprehensive benefits package
• Health, dental, and vision insurance (US)
• Regular team events and offsites
• Learning and growth opportunities

Ideal candidate

Seasoned network infrastructure operator with 5+ years in production who automates aggressively and sweats performance and reliability. You enjoy owning complex connectivity problems end-to-end and collaborating with customers on secure, isolated designs.

Requirements

• 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
• Production VXLAN overlay network experience
• Production IPsec, WireGuard, or Tailscale experience
• Experience with anycast DNS and mDNS
• Experience with private peering and cloud provider interconnects
• Linux networking performance tuning: congestion control, queue disciplines, socket buffers, MTU, NIC offloads, RSS/RPS/XPS, IRQ affinity
• Packet-level troubleshooting: iproute2, tc, ethtool, tcpdump, Wireshark, mtr
• Ansible or equivalent network configuration automation
• EVPN as a VXLAN control plane
• FRRouting, BIRD, or similar software-routing platforms
• AWS Direct Connect, Google Cloud Interconnect, Azure ExpressRoute
• Internet exchanges, cross-connects, route servers, colocation networking
• DDoS detection, mitigation, scrubbing, BGP-based traffic diversion
• eBPF, XDP, DPDK
• NetBox, Nautobot, Nornir
• Authoritative or recursive DNS infrastructure at scale
• Network hardware: Arista, Juniper, Cisco
• Kubernetes networking, service load balancing, CNI
• Python or Go