Cybersecurity Engineer – Classified Infrastructure (Customer Success)

Deploy and secure Istari’s platform in:

Implement and validate:

Perform hands-on security work, including:

Design, configure, or support secure network architectures, including:

Segmentation, boundary defense, and routing in classified environments

Troubleshoot and resolve:

Security configuration issues

Connectivity and compliance blockers

Work directly with:

Customer security teams (ISSO, ISSM, AO, SCA)

Program and infrastructure teams

Provide feedback to engineering on:

Real-world deployment constraints

Security gaps and improvements

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:

Experience operating in:

Strong experience securing:

Hands-on System Patching, STIG implementation and validation

Experience running scans, remediating findings, and managing POA&Ms

Experience designing or supporting:

Knowledge of:

Network segmentation, boundary defense, and secure connectivity

Familiarity with STIGs for network devices and infrastructure

You started in a technical role (SysAdmin, Network, SOC) and moved into security

You’ve done real, hands-on work—not just compliance oversight

You’re comfortable working:

In deploying emerging technology into real-world classified environments

Under time pressure to meet deployment or mission deadlines

You stay long enough to see systems through deployment and accreditation

You’re comfortable in a startup environment—scrappy, fast-moving, and collaborative

You’re willing to do the work needed to get across the finish line, even when it’s manual