SimSpace

4 open remote positions

SimSpace is an AI Proving Ground that enables organizations to train, test, and outmaneuver adversaries through realistic, live-fire simulations. Founded in 2015 by experts from U.S. Cyber Command and MIT Lincoln Laboratory, the company fosters a culture of continuous learning and professional growth with a human-centered philosophy.

Salary Distribution 4 of 4 jobs

PTO Distribution 2 of 4 jobs

Unlimited PTO 2 jobs (50%)

Benefits Overview 4 of 4 jobs

Dental (4) Medical (4) Vision (4) 401(k) (3) Equity (2) LinkedIn Learning (2) Parental Leave (2) Flexible PTO (1) Mental Health (1) Peloton (1) Peloton Wellness (1) Stock Options (1)

Open Positions

Backend Senior Software Engineer, Attack and User Emulation Team (AUE)

$185,000–$260,000/yr
US

  • Architect and deliver scalable microservices for cybersecurity range simulations, driving technical standards across systems.
  • Design and implement AI-enabled platform capabilities to support intelligent emulation behaviors and autonomous workflows.
  • Mentor engineers, lead complex initiatives, and establish best practices in system reliability, API design, and security-first engineering.

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Senior Software Engineer, Network Simulation

$160,000–$225,000/yr
US Unlimited PTO

  • Design and build a kernel-level simulation layer that reproduces worldwide internet routing behavior without virtual routers.
  • Serve as technical lead for a newly formed team, setting architectural direction and mentoring peer engineers.
  • Partner with a Principal Engineer and Engineering Manager to take a proof-of-concept eBPF architecture into production.

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Engineering Manager

$160,000–$220,000/yr
US Unlimited PTO

  • Lead and grow a full-stack engineering team, owning delivery of end-to-end product features from React frontend through Kotlin backend services.
  • Guide architecture, unblock hard problems, and make smart trade-offs while staying close to technical decisions.
  • Drive cross-team execution, partner with product management, and continuously improve Agile practices to enhance velocity and quality.

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