Sr. Cybersecurity Engineer (ISSE / Product Security Engineering)

Implement NIST 800-53 / 800-171 security controls directly into system design and platform architecture

Lead system hardening and secure configuration across platform components

Embed security into the engineering workflow (DevSecOps)

Perform:

System Patching

STIG implementation and validation

Vulnerability scanning (ACAS/Nessus)

POA&M management and remediation tracking

Partner with engineering teams to:

Secure APIs, services, and data pipelines

Enforce least privilege, identity, and access controls

Support deployment into:

SIPR / JWICS / SAP environments

Identify and remediate security gaps before they reach customer environments

Active TS clearance with SCI eligibility

DoD 8570/8140 certification (Security+ minimum; CISSP/CASP+/CISM preferred)

5+ years in cybersecurity with hands-on implementation experience

Direct experience with:

NIST 800-53 / 800-171

DISA STIGs

ACAS/Nessus

Background in:

Systems Administration, Network Engineering, or SOC → transitioned into security

Experience working in:

Classified environments (SIPR, JWICS, SAP)

You’ve actually hardened systems—not just documented controls

You can move between:

Low-level system configuration

High-level security architecture decisions

You are comfortable doing manual, in-the-weeds work when needed to hit deadlines

Track record of stability (2+ years per role preferred)

Comfortable in a startup environment

Willing to own problems end-to-end, not just your lane