Stephen Shaffer

Bel Air, Maryland, United States

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Summary

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Senior

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Stephen Shaffer is a security-focused technology advisor and principal security engineer with eight years of experience applying data engineering, data science, and risk quantification to vulnerability management across healthcare and consumer-tech environments. He has driven program-level security transformations—implementing risk scoring, large-scale data pipelines, and configuration hardening—at organizations including Moderna, Peloton, and CMS cloud programs. As EPSS SIG co-chair he helps shape community practices around exploit prediction, and he combines hands-on tooling, research, and published code with practical compliance delivery. Based in Bel Air, MD, he blends a criminology background with an MS in Cybersecurity to approach risk from both behavioral and technical angles, and he’s known for turning complex security requirements into auditable, data-driven programs.

8 years of coding experience

10 years of employment as a software developer

Master of Science, Cybersecurity, Master of Science, Cybersecurity at University of Maryland Global Campus

Bachelor of Arts, Criminology and Criminal Justice, Bachelor of Arts, Criminology and Criminal Justice at University of Maryland

Stackoverflow

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Github Skills (37)

graph10

terraform9

aws9

terragrunt8

terraform-module8

hashicorp8

infrastructure8

hcl8

infrastructure-as-code8

terraform-cloud8

devops8

docker-container7

declarative7

amazon-ec27

amazon6

Programming languages (4)

ShellGoRubyPython

Github contributions (5)

t0sche/cvss-bt

Nov 2023 - Mar 2025

Enriching the NVD CVSS scores to include Temporal & Threat Metrics

Contributions:1 release, 1 review, 28 PRs in 1 year 4 months

samtekinc/CIS-hardening-macOS-BigSur

Jun 2021 - Oct 2021

Contributions:22 commits in 3 months

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