Cybersecurity Engineering & Architecture

Shaun Rieth possesses deep technical fluency across secure systems engineering, enterprise architecture, compliance management, and cybersecurity operations. His capabilities span both technical and regulatory domains, including secure deployments, vulnerability mitigation, and audit readiness.

Directed security engineering assessments for 300+ Windows and Linux national security systems supporting U.S. nuclear deterrence.
Managed eMASS accreditation across multiple systems, ensuring timely ATOs under NIST and FedRAMP controls.
Developed a mitigation strategy for over 20,000 vulnerabilities, earning an “Excellent” audit rating.
Created a data-driven IT risk scoring tool using Six Sigma methods, reducing assessment timelines by 30%.
Engineered over 150 enterprise-class technical solutions, from virtual environments to emergency power systems.

Testimonials

"We are currently developing an ATO for a new IS, pioneering the use of NIST 800-53r5 security controls within the Air Force. Starting from scratch, with no established processes, templates, or control transfers, this team provided key insights and developed system policies, enabling us to complete the required artifacts in under three months – half the typical timeframe and with significantly fewer resources."
- Wing Information System Security Manager

"Shaun possesses an exceptionally deep and practical understanding of the intricate cybersecurity landscape. His extensive experience in designing, implementing, and managing robust informaton security frameworks is truly commendable."
- Chief, Cyber Plans and Policy