Senior Software Engineer, Network Simulations
SimSpace Corporation3 months ago
Base Salary
$165k - $225k/yr
Responsibilities
- Own the end-to-end architecture of the eBPF-based routing simulation layer, including XDP and TC hook design, BPF map structures, and synthetic ICMP TTL-exceeded generation.
- Design and build the control-plane topology database and pipeline for compiling real-world internet topology data.
- Architect lightweight in-range proxy agents for local topology configuration, DNS delegation, and traffic forwarding.
- Define control-plane and agent interface contracts, topology update propagation, graceful degradation, and agent lifecycle management.
- Serve as technical lead through architectural decisions, design reviews, and engineering-quality ownership across the team.
- Mentor engineers in systems design, kernel-level debugging, and engineering rigor.
- Partner with engineers and adjacent platform teams on simulation challenges and the operational model for a long-lived, multi-tenant service.
Requirements
- Deep expertise in Linux kernel networking and eBPF program development, including XDP, TC hooks, and BPF map types.
- Strong systems programming skills with C or Rust for eBPF development and Go or Python for control-plane agents and tooling.
- Solid understanding of BGP, ASN topology, CIDR allocation, and inter-AS peering.
- Experience designing systems with control-plane and data-plane separation across distributed components with intermittent central-controller connectivity.
- Demonstrated technical leadership and experience setting architectural direction and driving engineering quality across a team.
- Ability to take research or proof-of-concept work into reliable production systems at scale.
- Familiarity with Kubernetes as a deployment environment for control-plane services and distributed agents.
- Experience with network simulation, traffic shaping, or cyber range infrastructure is a strong plus.
- Prior cybersecurity, defense, or government-adjacent experience is a plus.
Benefits
- Base salary range of $160,000-$225,000 plus potential annual performance bonuses.
- Medical, dental, vision, and savings-plan benefits beginning on day one.
- Company-paid counseling, coaching, and family resources through Spring Health.
- 401(k) retirement savings plan with company match.
- Unlimited vacation and dedicated health and wellness days.
- Paid parental leave.
- Equity stock options at hire and annual performance-based grants.
- Employee referral rewards of $1,500-$3,500 per qualified hire.
- Subsidized Peloton memberships and equipment discounts.
- LinkedIn Learning membership and professional development opportunities.
- Monthly reimbursements for meaningful teammate connections through the SocialSpace Community.
- Legal plan coverage, pet insurance, wellness reimbursements, and other perks.
- The role may be remote or office-based, with collaboration across departments and time zones.
Tech Stack
About SimSpace Corporation
SimSpace builds cyber ranges and a live-fire simulation platform used by governments, militaries, and large enterprises to train cyber teams, validate defenses, and test AI agents. The company sells software and expert services for training, threat emulation, and technology evaluation in replicas of production environments. Founded in 2015 by veterans of U.S. Cyber Command and MIT Lincoln Laboratory, SimSpace is privately held and headquartered in Orlando, Florida.