Istari digital

Cybersecurity Engineer – Classified Infrastructure (Customer Success)

Anywhere Full Time

Security Clearance: Active TS required with SCI eligibility (Polygraph a plus)

About Istari Digital

Istari Digital delivers a model-based digital engineering platform used by defense and aerospace organizations to design and operate mission-critical systems. Our platform is deployed into classified and high-security environments, where cybersecurity is foundational—not optional.

Role Overview

We are hiring a Cybersecurity Engineer to support customer deployments in classified environments, ensuring Istari’s platform operates securely, compliantly, and reliably in real-world mission systems.

This role sits within Customer Success and focuses on hands-on system and infrastructure security—not just documentation or policy.

Depending on your background, you may lean more toward:

  • System hardening (Windows/Linux)

  • Secure network infrastructure (classified environments)

In this role YOU will be the difference between a platform that looks secure on paper, and one that actually works inside real classified mission environments.