Senior Software Engineer, Distributed Networking (DSB)

Mosaic.tech; Seattle (WA); On-site; USD 191,000 - 253,000; Full time

Benefits offered by this job

Equity grants

Competitive benefits

Job summary

Anduril Industries is seeking a Software Engineer to join the Data Distribution team, building the Distributed Service Bus that connects thousands of assets in contested environments. You will design and implement core networking infrastructure with a focus on reliability and low latency for DDIL networks.

The role emphasizes strong systems programming, distributed systems expertise, and security-minded development.

Qualifications

• 5+ years of professional software engineering experience.
• Proficiency in a systems programming language (Rust, C, C++, or Go).
• Strong understanding of networking fundamentals: TCP/UDP, socket programming, MTU, multicast, TLS/mTLS.
• Experience building or maintaining distributed systems (message buses, RPC frameworks, consensus protocols, or similar).
• Familiarity with asynchronous programming models (async/await, event loops, futures).
• Comfort working with Protocol Buffers and/or gRPC.
• Ability to read packet captures and use network debugging tools (tcpdump, Wireshark, etc.)
• Must be eligible to obtain and maintain a U.S. Secret security clearance.

Responsibilities

• Design and implement new features for the Distributed Service Bus, including gossip protocols, OSPF-style link-state routing, and flow control mechanisms.
• Build and extend the gRPC proxy layer that enables existing services to communicate transparently over the DSB mesh.
• Debug complex distributed networking issues spanning tactical radios, UDP/TCP transports, and mesh routing — from packet captures on deployed assets to cloud infrastructure.
• Collaborate with product teams across business lines to deploy DSB onto new hardware platforms and support migrations from legacy communication buses.
• Design and implement protocol-level optimizations for bandwidth-constrained RF links, including compression, prefix routing, and priority-based QoS scheduling.
• Write RFCs and technical design documents for new protocol features and API surfaces.
• Build deterministic simulation harnesses that allow the same production code to run in fully reproducible test environments.
• Improve observability through Prometheus metrics, Grafana dashboards, and CLI tooling (dsbtool) for live mesh inspection and debugging.
• Contribute to the security posture of the communication layer, including packet signing (ECDSA), FIPS compliance, and end-to-end encryption.

Skills

Rust

C/C++/Go

Networking fundamentals

Distributed systems

Async programming

Protobufs/gRPC

Security clearance

Tools

Protobufs

gRPC

tcpdump/Wireshark

Kubernetes

Job description

Anduril Industries is seeking a Software Engineer to join the Data Distribution team, building the Distributed Service Bus that connects thousands of assets in contested environments. You will design and implement core networking infrastructure with a focus on reliability and low latency for DDIL networks.

The role emphasizes strong systems programming, distributed systems expertise, and security-minded development.