Staff Software Engineer, Greyspace (Fully Remote)

SimSpace; United States; Remote; USD 180,000 - 240,000; Full time

Job summary

SimSpace is seeking a seasoned backend engineer to lead the technical design and development of Greyspace, our simulated internet for cyber training. You will shape architecture, APIs, and service boundaries with partner teams.

The role focuses on building reliable distributed services, implementing realistic network behavior, and driving observability with Kubernetes, Linux, and CI/CD practices. Leadership across multi-disciplinary initiatives is essential to drive mission-ready outcomes.

Qualifications

• 8+ years building distributed applications with strong networking fundamentals.
• Proficiency in modern backend languages, Kubernetes, Linux, and CI/CD.
• Experience leading complex technical initiatives across teams.

Responsibilities

• Lead the design and development of Greyspace, a simulated internet for cyber training.
• Shape architecture, APIs, and service boundaries with partner teams.
• Design and build services for configuring and managing simulated internet environments.
• Drive reliability through automated tests, observability, and operational readiness.

Skills

Distributed systems

Networking fundamentals

Backend development

Technical leadership

Cross-team collaboration

Tools

Kubernetes

Linux

CI/CD pipelines

Job description

• Lead the technical design and development of Greyspace, a simulated internet for cyber training.
• Shape architecture, APIs, and service boundaries with partner teams.

Key Responsibilities:

• Design and build services for configuring and managing simulated internet environments.
• Implement realistic network behavior across DNS, TLS, web, and mail, ensuring isolation and safety.
• Drive reliability through automated tests, observability, and operational readiness.

Required Experience:

• 8+ years building distributed applications with strong networking fundamentals.
• Proficiency in modern backend languages, Kubernetes, Linux, and CI/CD.
• Experience leading complex technical initiatives across teams.

SimSpace

SimSpace provides a realistic cyber range platform for training, testing, and validating AI-ready defenses. Founded in 2015 by U.S. Cyber Command and MIT Lincoln Laboratory experts, it values human-centered culture and continuous growth.