Senior Software Engineer, Network Simulations

🕒 il y a 1 mois

🇺🇸 États-Unis – Télétravail

💵 $160 000 - $225 000 / an

⏰ Temps Plein

🟠 Senior

🛜 Ingénieur Réseau / Administrateur de Réseau

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SimSpace

Site WebLinkedInTous les Emplois

201 - 500 employés

Fondée en 2015

💼 Conseil

🎖️ Défense

🔒 Cybersecurity

🔥 Financement dans la dernière année

💰 €39 000 000 Venture Round - SimSpace en 2025-10

Consulting • Defense • Cybersecurity

SimSpace est une entreprise de cybersécurité qui propose une plateforme de simulateur cyber réaliste et intelligente pour former, tester et valider les équipes de sécurité, les outils et les agents IA. Sa plateforme permet des exercices de tir réel, l'émulation de menaces (chaîne de destruction complète et atomique), la validation des contrôles et des workflows agentiques, ainsi que des tests de reprise après sinistre et de conformité. Elle est utilisée par les entreprises et les clients gouvernementaux pour renforcer leur préparation et leur résilience face aux cybermenaces. Fondée par des experts du Cyber Command des États-Unis et du MIT Lincoln Laboratory, SimSpace se concentre sur l'amélioration des compétences individuelles, le renforcement des équipes et l'évaluation des défenses pilotées par l'IA dans des simulations réalistes et proches de la production.

Description

• Own the end-to-end architecture of the eBPF-based routing simulation layer, including XDP and TC hook point design, BPF map structure, and synthetic ICMP TTL-exceeded generation that makes traceroute and MTR behave correctly against the simulated topology • Design and build the control-plane topology database and the pipeline that compiles real-world internet topology data into a form that in-range agents can consume and apply • Architect the in-range proxy agent: the lightweight component that bridges the persistent control plane to individual cyber ranges, applying topology configuration locally and handling DNS delegation and traffic forwarding • Define the interface contract between the control plane and in-range agents, including topology update propagation, graceful degradation when control plane connectivity is interrupted, and agent lifecycle management • Serve as technical lead for the team — making daily architectural decisions across the full service scope, conducting design reviews, and maintaining engineering quality across all four engineering roles on the team • Partner with other Engineers on novel simulation challenges, bring independent judgment to architectural tradeoffs, and shape the technical roadmap • Mentor engineers on the team, raising the bar on systems design, kernel-level debugging, and engineering rigor • Collaborate with adjacent platform teams on the operational model for a long-lived, multi-tenant service serving active cyber range deployments

🎯 Exigences

• Deep expertise in Linux kernel networking and eBPF program development, including XDP, TC hooks, BPF map types, and the tradeoffs involved in kernel-space packet processing • Strong systems programming skills — C or Rust for eBPF program development, and Go or Python for the control-plane agent and tooling layer • Solid understanding of real-world internet routing — BGP, ASN topology, CIDR allocation, inter-AS peering — sufficient to model it faithfully without running routing software • Experience designing systems with well-defined control plane and data plane separation, particularly where distributed components may have intermittent connectivity to a central controller • Demonstrated technical leadership: you have set architectural direction and driven engineering quality across a team, whether as a tech lead, principal, or senior-plus individual contributor • Comfort at the intersection of research and production engineering — this role involves taking a proof of concept and building it into something that runs reliably at scale • Familiarity with Kubernetes as the deployment environment for both control plane services and distributed agent components • Experience with network simulation, traffic shaping, or cyber range infrastructure is a strong plus • Prior work in cybersecurity, defense, or government-adjacent environments is a plus due to SimSpace’s customer base.

🏖️ Avantages

• Comprehensive medical, dental, and vision benefits, plus savings plans—coverage starts on day one! • Access to company-paid counseling, coaching, and resources for you and your family through Spring Health. • Plan for your future with a 401(k)-retirement savings plan featuring a company match. • Take the time you need with unlimited vacation and dedicated health & wellness days. • Paid leave plans to support you and your loved ones during life’s most important moments. • Equity stock options at hire, with annual performance-based grants. • Earn $1,500–$3,500 for every qualified hire through our employee referral program. • Full- and partial- subsidized membership plans and equipment discounts to help you reach your personalized fitness goals. • Access a LinkedIn Learning membership to prioritize your personal and professional development. • Monthly reimbursements for meaningful connections with teammates through our SocialSpace Community. • Legal plan coverage, pet insurance, wellness reimbursements, and more to simplify life’s details.