Garret Seppala
Cyber Security Engineer III - Secure Software at Pacific Northwest National Laboratory
Richland, Washington, United States
Summary
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Senior🎓
Top SchoolGarret Seppala is a Cyber Security Engineer III at Pacific Northwest National Laboratory with nine years of experience building secure, mission-focused software for national security. He leads end-to-end design and delivery of client-facing tools, serving as principal investigator on projects that span network anomaly detection, cyber-physical simulations, and real-time control systems. Proficient in Python, JavaScript/TypeScript, C#, and CI/CD tooling, he combines full-stack development with hands-on infrastructure work—docker, cloud, VMs, and embedded PLC integration. Known for mentoring junior engineers and running reproducible development pipelines, he also scopes schedules and budgets to align technical efforts with program goals. Outside the lab he channels his curiosity into modding video games, reflecting a practical creativity that informs his approach to problem solving.
9 years of coding experience
Bachelor of Science in Software Engineering Technology, Graduated Summa Cum Laude, Bachelor of Science in Software Engineering Technology, Graduated Summa Cum Laude at Oregon Institute of Technology
English
Github Skills (7)
energy7
validating7
scanning6
security4
prototypes4
infrastructure3
architectures3
Programming languages (1)
Github contributions (5)
garretseppalapnnl/ssass-e
May 2021 - May 2022
SSASSE software is responsible for validating, and verifying innovative safe scanning methodologies, models, architectures, and prototypes to safely assess operational technology (OT) installed in critical energy infrastructure.
Contributions:2 PRs, 82 pushes, 2 branches in 1 year
architecturescriticalsecurityinfrastructureinnovative
pnnl/ADR
Mar 2019 - Apr 2020
Contributions:45 pushes, 3 branches in 1 year
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