Cybersecurity Engineer – Classified Infrastructure (Customer Success)

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

Requirements

• Active TS clearance with SCI eligibility
• Security+ (required) — CISSP, CISM, or CASP+ preferred
• 4+ years of hands-on experience in cybersecurity, system administration, or network engineering
• Direct experience with NIST 800-53 / 800-171, DISA STIGs, and operating in classified environments (SIPR, JWICS, SAP)
• Strong experience securing Windows and/or Linux systems, and designing or supporting secure network architectures in classified environments

Benefits

• Generous Paid Time Off
• 401k Matching
• Retirement Plan
• $116,000 - $174,000 a year (may be additionally eligible for stipend, one time incentive, or % differential for clearance)