Senior Software Engineer, Network Simulation

New

SimSpaceCybersecurity

Remote - U.S.Full-TimeSenior

Salary$165K - $225K; $165K – $225K • Offers Equity • Offers Bonus

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Job Details

Deep expertise in Linux kernel networking and eBPF program development, including XDP, TC hooks, BPF map types, and kernel-space packet processing.
Strong systems programming skills (C or Rust for eBPF; Go or Python for control-plane agent and tooling).
Solid understanding of real-world internet routing (BGP, ASN topology, CIDR allocation, inter-AS peering).
Experience designing systems with well-defined control plane and data plane separation.
Demonstrated technical leadership setting architectural direction and driving engineering quality.
Comfort working at the intersection of research and production engineering.
Familiarity with Kubernetes as a deployment environment.
Experience with network simulation, traffic shaping, or cyber range infrastructure is a plus.
Prior work in cybersecurity, defense, or government-adjacent environments is a plus.

Own the end-to-end architecture of the eBPF-based routing simulation layer, including XDP and TC hook point design and BPF map structure.
Design and build the control-plane topology database and the pipeline for compiling real-world internet topology data.
Architect the in-range proxy agent to bridge the control plane to individual cyber ranges.
Define the interface contract between the control plane and in-range agents, ensuring robust topology update propagation and lifecycle management.
Serve as technical lead, making architectural decisions, conducting design reviews, and maintaining engineering quality.
Mentor engineers on systems design, kernel-level debugging, and engineering rigor.
Collaborate with adjacent platform teams on the operational model for a multi-tenant service.

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