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Senior/Staff Software Engineer, Network Infrastructure

fal.ai· Engineering
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Remote$180k - $250kFull-timePosted 2mo ago

About the role

fal is building a generative media infrastructure and the role focuses on designing, building, and operating public and private network infrastructure across fal's data centers and cloud environments, with emphasis on high-performance Linux networking, BGP, private connectivity, and observability to support a scalable, secure, and reliable platform.

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

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
  • 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

Skills

Required:Public and private networking design and operationLinux networking

Benefits

  • Interesting and challenging work
  • A lot of learning and growth opportunities
  • Visa sponsorship and relocation assistance to San Francisco
  • Health, dental, and vision insurance (US)
  • Regular team events and offsites
Last updated Oct 17, 2026. Interested? Apply on the company site.

About fal.ai

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