Job Overview
Location
Remote - U.S.
Job Type
Full-time
Category
Software Engineering
Date Posted
June 16, 2026
Full Job Description
đź“‹ Description
- • As a Senior Software Engineer in Network Simulations at SimSpace, you will serve as the technical lead for the internet simulation platform, designing and building a kernel-level eBPF-based system that replicates real-world internet routing behavior without virtual routers, enabling realistic cyber range environments for defense and enterprise clients.
- • You will own the end-to-end architecture of the eBPF-based routing simulation layer, design the control-plane topology database and in-range proxy agents, define interface contracts, and drive technical decisions across the team while mentoring engineers and collaborating with platform teams on operational models for multi-tenant cyber range deployments.
- • SimSpace is an AI Proving Ground founded by experts from U.S. Cyber Command and MIT Lincoln Laboratory, trusted by governments and enterprises to deliver adaptive, AI-ready defenses through realistic live-fire simulations that compress cyber readiness cycles from months to days, with a culture centered on human-centered values, continuous learning, and innovation.
- • In this role, you will take a patent-pending proof of concept into production-grade scale, shape the technical roadmap of a novel simulation system, deepen expertise in kernel networking and internet topology modeling, and grow as a technical leader in a mission-driven organization focused on securing the digital world.
🎯 Requirements
- • Deep expertise in Linux kernel networking and eBPF program development, including XDP, TC hooks, BPF map types, and kernel-space packet processing tradeoffs
- • Strong systems programming skills in C or Rust for eBPF development, and Go or Python for control-plane agent and tooling
- • Solid understanding of real-world internet routing (BGP, ASN topology, CIDR, inter-AS peering) sufficient to model it faithfully without running routing software
- • Experience designing systems with control plane and data plane separation, particularly with distributed components and intermittent controller connectivity
- • Demonstrated technical leadership in setting architectural direction and driving engineering quality across a team
- • Comfort transitioning from research to production engineering, taking proof of concept to reliable, scalable systems
- • Familiarity with Kubernetes as a deployment environment for control plane services and distributed agents
- • Experience with network simulation, traffic shaping, or cyber range infrastructure (strong plus)
- • Prior work in cybersecurity, defense, or government-adjacent environments (plus)
🏖️ Benefits
- • Competitive base salary range of $160,000 - $225,000 with annual performance-based bonuses
- • Comprehensive medical, dental, and vision benefits starting day one, plus savings plans
- • Company-paid mental health support via Spring Health for employees and families
- • 401(k) retirement plan with company match
- • Unlimited vacation and dedicated health & wellness days
- • Paid parental leave for important life events
- • Equity stock options at hire with annual performance-based grants
- • Employee referral rewards of $1,500–$3,500 per qualified hire
- • Subsidized Peloton membership and equipment discounts
- • LinkedIn Learning access for continuous skill development
- • Monthly reimbursements for team connections via SocialSpace Community
- • Additional perks: legal plan, pet insurance, wellness reimbursements
Skills & Technologies
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About SimSpace Corporation
SimSpace Corporation provides cyber range software that lets enterprises model, test and train on replica networks. Its platform continuously mirrors production environments, offering on-demand labs for red/blue teams, compliance validation and workforce development. Fortune 500, defense and MSSP customers use the solution to reduce security risk, accelerate incident response and measure cyber readiness. Founded in 2015 and headquartered in Boston, the company is privately held and backed by venture investors focused on critical infrastructure protection.
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