Spencer Shimko
Technical Director at Sealing Technologies, a Parsons Company
Easton, Maryland, United States
Summary
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Senior🎓
Top SchoolSpencer Shimko is a Technical Director with over 20 years of defensive cybersecurity experience designing and deploying high-assurance solutions for the U.S. Department of Defense and critical infrastructure. He combines hands-on expertise in cross-domain solutions, multi-tenant HPC, SELinux/Android security, and DoD compliance (NIST 800-53/171/223 and RTB) with strategic leadership of engineering teams and business development. As founder of Quark Security and a long-time practitioner at Tresys, he has translated research in access control and information flow into deployable classified mobile and Linux platforms, culminating in acquisition by SealingTech. Known for mentoring engineers and improving technical processes, he has led teams of 25+ and driven lab-based security assessments and certification efforts. Spencer’s work blends rigorous threat- and risk-driven architecture with pragmatic product delivery, and he often surfaces subtle policy and IPC issues that other teams overlook. Based in Easton, MD, he remains active in publishing and presenting on CDS, IPC, and secure OS design.
16 years of coding experience
19 years of employment as a software developer
UMBC
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (104)
security-hardening10
stig10
bash10
security-automation10
security10
automation10
websec10
cybersecurity10
linux10
information-security10
ups10
ansible10
pci-dss10
application-security10
oval10
Programming languages (9)
Github contributions (5)
sealingtech/CLIP
Jan 2012 - May 2019
SealingTech's Certifiable Linux Integration Platform
Contributions:1 review, 892 commits, 28 PRs in 7 years 5 months
securityintegration-platformlinuxquark
sshimko/SPAN
Oct 2017 - Oct 2019
SELinux Policy Analysis Notebook
Contributions:2 pushes, 3 branches in 2 years
policysecuritynotebookrisk-assessmentselinux
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