Senior Platform & Networking Engineer (NixOS)

Anduril; Irvine (CA); On-site; USD 220,000 - 292,000; Full time

Job summary

Anduril Industries in Irvine is seeking a Senior Software Engineer to own the NixOS-based overlay that defines base images and common services across multiple tower variants. You will also own the end-to-end network topology for secure, high-assurance deployments, including VLANs, NAT, firewall policy, and carrier-board mappings.

You’ll drive consolidation of legacy configurations into a single, verifiable overlay, and support the real-time messaging layer as it migrates to a next-gen bus.

Qualifications

• 4+ years of professional software engineering with substantial time in Linux systems, embedded platforms, or infrastructure work.
• Deep, practical networking knowledge: VLANs, bridging, routing and policy routing, DHCP, multicast, NAT, and firewalling, plus fluency with ip, tcpdump, and Wireshark for diagnosing real traffic.
• Strong experience with declarative configuration management and reproducible builds.
• Nix or NixOS is what we use and what we most want to see; adjacent depth in Bazel, Buildroot, Yocto, or infrastructure-as-code tooling (Terraform, Ansible, Pulumi) is a solid substitute.
• Proficiency in Rust or C++, enough to read and modify the services that sit on top of the platform, not just the configuration that deploys them.
• Comfort operating and troubleshooting real hardware: serial consoles, provisioning and reflashing, boot problems, and remote debugging of systems you cannot physically reach.
• Demonstrated ability to define a technical interface that other teams build against, and to hold that line through code review and documentation rather than authority.
• US person status required, with eligibility to obtain and maintain a US security clearance.

Responsibilities

• Own the shared base of our NixOS overlay: system modules, compute platform definitions, common tower services, and the image definitions that every product variant composes from.
• Own the tower network topology end to end: VLAN and subnet allocation, bridging, link ranking and failover across heterogeneous backhaul, NAT and firewall policy, and the physical-port-to-payload mapping for each carrier board.
• Define and enforce the integration contract that business line teams use to add network-attached payloads, so their additions extend the platform instead of diverging from it.
• Drive the consolidation of legacy, per-product configurations into the common overlay, with build-time checks that keep them from drifting back apart.
• Support and extend our real-time messaging layer as services migrate from the legacy pub-sub bus to its next-generation replacement, including the topic and schema contracts that define who owns which data.
• Debug problems that cross every layer at once: kernel and device tree, systemd unit ordering, Nix evaluation, link-layer configuration, and the sensor daemons on top.

Skills

Linux systems

Networking

Rust or C++

System design

Serial debugging

Security clearance

Tools

NixOS

Bazel

Buildroot

Yocto

Terraform

Ansible

Pulumi

JetPack (NVIDIA)

Job description

Anduril Industries in Irvine is seeking a Senior Software Engineer to own the NixOS-based overlay that defines base images and common services across multiple tower variants. You will also own the end-to-end network topology for secure, high-assurance deployments, including VLANs, NAT, firewall policy, and carrier-board mappings.

You’ll drive consolidation of legacy configurations into a single, verifiable overlay, and support the real-time messaging layer as it migrates to a next-gen bus.