SimSpace serves as an AI Proving Ground where organizations can confidently train, test, and outmaneuver adversaries in any environment. Trusted by allied governments, militaries, enterprises, and research institutions worldwide, SimSpace enables adaptive, AI-ready defenses that stay ahead of evolving threats. Founded in 2015 by experts from U.S. Cyber Command and MIT Lincoln Laboratory, the platform unifies training, testing, and validation in a realistic, live-fire simulation—helping teams evaluate security investments, optimize performance, and compress cyber readiness cycles from months to days.
Why join SimSpace? We are an organization that is focused on building our culture and mindfully enhancing our atmosphere every day which is why we have collaborated on an integral value system. Our governing philosophy of being Human Centered is deeply embedded within our value system. We apply this philosophy to every one of our internal team members, external clients, and their customers.
How Do We Work? We believe that people are at the center of everything we do. SimSpace fosters a culture of continuous learning, curiosity, and professional growth. That belief shows up in action: in-house training, internal and external learning platforms, cyber conferences, industry events, and dedicated time for skill development. Our people are empowered to shape their careers - and it shows. Year over year, SimSpace consistently outperforms industry benchmarks in internal mobility, promotions, and total rewards growth.
Who Thrives Here? We are a team of innovators, protectors, and problem-solvers. We believe diversity of thought and experience fuels better solutions, and we’re committed to building teams that reflect the communities we serve. Whether you’re remote or office-based, you’ll collaborate with talented colleagues across departments and time zones, united by the mission to create a safer digital world.
We invite you to apply today!
SimSpace is seeking a Staff Engineer to provide technical leadership for the Range Against the Machine team. RATM creates and maintains reusable virtual-machine templates and the standardized cyber ranges used across the SimSpace platform and by customers. The work spans range architecture, networking, operating systems, virtualization, cybersecurity, automation, and representative enterprise and industrial environments.
This is a hands-on Staff-level role. You will solve selected complex problems directly while increasing the team's ability to deliver independently through architecture, standards, automation, documentation, mentoring, and delegated technical ownership. Success means improving the system and the team's leverage—not becoming the permanent owner of every difficult problem.
WHAT THE TEAM OWNS
- Reusable range architectures, blueprints, configuration bundles, and approved custom range capabilities.
- Virtual-machine images and their build, validation, versioning, patching, release, deprecation, and replacement lifecycle.
- Ansible-based configuration automation and repeatable patterns for secure, supportable range construction.
- Representative network, identity, infrastructure, application, and security environments that support defensive operations, offensive workflows, automated attacks, user emulation, tool integration, training, exercises, and approved customer use cases, including ICS/OT where required.
- Quality, documentation, and supportability of team-owned repositories and artifacts, plus bounded integration solutions when range requirements expose platform gaps.
WHAT YOU'LL DO
- Set technical direction for reusable cyber ranges and make explicit trade-offs among realism, security, reliability, scalability, usability, performance, maintainability, customer outcomes, and near-term delivery.
- Improve Ansible and Packer architecture, standards, and automation so configurations and images are modular, idempotent, testable, versioned, secure, dependency-aware, safe in their handling…