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Senior Software Engineer, Tactical Networking

Anduril - Costa Mesa, CA, United States - In-office - posted 2026-09-14

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Salary: USD 191,000 - 253,000 / annual

Anduril Industries is a defense technology company building advanced military systems powered by Lattice OS, an AI-powered operating system for real-time command and control. The Tactical Networking Team builds and operates Layer 3 networking infrastructure that connects autonomous systems and operators across denied, degraded, intermittent, and limited (DDIL) network environments. In this role, you will design and implement Layer 3 networking for DDIL environments, including VPN tunnel management, dynamic routing, and multi-path failover across tactical radios, satellite, and wired transports. You'll build radio integration layers that abstract diverse tactical waveforms behind a unified networking interface, and design QoS scheduling and traffic shaping to ensure mission-critical data flows under severe bandwidth constraints. You will architect PKI infrastructure for the Lattice mesh, including certificate authorities, automated issuance and renewal, revocation (CRL/OCSP), and secure node bootstrapping. You'll design certificate lifecycle management that handles rotation and re-keying across nodes with intermittent connectivity, and implement zero-trust identity verification across all mesh communication paths. Network observability is treated as a first-class citizen—you'll build Prometheus metrics, Grafana dashboards, eBPF-based instrumentation, and CLI tooling for topology inspection, link health, and certificate status. You'll also debug complex networking issues from packet captures on deployed assets to cloud infrastructure, and build network management and orchestration systems for real-time topology configuration and adaptation. Security is foundational to everything the team builds. Every link in the Lattice mesh is authenticated and encrypted, backed by a purpose-built PKI that handles certificate issuance, rotation, and revocation across thousands of intermittently connected nodes. The team designs to meet rigorous government compliance standards while remaining operationally practical for warfighters in the field. REQUIREMENTS: - 3+ years of professional software engineering experience - Proficiency in a systems programming language (Rust, C, C++, or Go) - Strong understanding of Layer 3 networking: IP routing, tunneling (WireGuard, IPsec), TCP/UDP, socket programming - Experience building distributed or networked systems (SDN/SD-WANs, VPNs, routing daemons, network control planes, or similar) - Understanding of cryptographic fundamentals: symmetric/asymmetric encryption, digital signatures, certificate chains, TLS - Experience designing or operating PKI systems (certificate authorities, ACME, EST, or custom issuance protocols) - Familiarity with asynchronous programming models - Comfort with network debugging tools (tcpdump, Wireshark, iproute2) - Must be eligible to obtain and maintain an active U.S. Secret security clearance PREFERRED QUALIFICATIONS: - Experience with FIPS 140-2/140-3 validated cryptographic modules - Experience with post-quantum cryptography (PQC) algorithms, migration strategies, and CSNA 2.0 compliance - Familiarity with HSMs or TPMs for key protection - Experience with dynamic routing protocols (OSPF, BGP) or software-defined networking - Experience integrating with tactical radio systems or military waveforms - Familiarity with Kubernetes networking (CNI plugins, service mesh, network policies)

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