Zach Giezen
Application Security Guru
Louisville, Colorado, United States
Summary
👤
Senior🎓
Top SchoolZach Giezen is an application security specialist with over 10 years of hands-on experience in malware analysis, reverse engineering, and software assurance, currently serving as an Application Security Guru and running his own consulting practice. He leads red team operations, authors internal security tooling, and acts as a PKI custodian and encryption expert, bridging offensive testing with practical SDLC policy and firewall policy design. Zach’s background includes executive security leadership as a former CSO and certifications through ISC2 (CISSP/CSSLP), reflecting a strong blend of governance and technical depth. Based in Louisville, Colorado, he brings an uncommon combination of deep reverse-engineering skills and governance-minded SDLC practice to help organizations harden applications end-to-end.
10 years of coding experience
Horizon High School Thornton ColoradoCISSP - CSSLP, Security - Software Assurance, CISSP - CSSLP, Security - Software Assurance at ISC2
Github Skills (29)
linux9
jenkins8
pressure8
terragrunt8
pulumi8
nix7
sensor7
opentofu7
cnc-controller7
webservice7
location7
accelerometer7
magnetometer7
docker7
golang6
Programming languages (5)
Github contributions (5)
RPiClass/RPiWebService
Apr 2016 - Feb 2022
Sensor webservice to provide Gyroscope, Accelerometer, Magnetometer, Temperature, Barometric pressure, Humidity, geo location, and Video
Contributions:2 PRs, 9 pushes, 2 branches in 5 years 10 months
barometric-pressuregeowebservicehumiditypressure
denver-cfman/nixos-systems
Feb 2025 - Jul 2026
Nix system configs
Contributions:53 PRs, 262 pushes, 67 branches in 1 year 5 months
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