John Cartrett
Summary
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SeniorJohn Cartrett is a Principal-level offensive security leader with 11 years of hands-on experience building and running red, purple, and advanced penetration testing practices across enterprise and consulting environments. He has scaled teams and programs from startup offerings to multi-million-dollar practices, led large Red Team operations, and served as a global SME while managing people, margins, and client-facing risk discussions. Deeply technical and curious, he contributes to Metasploit—improving scanners and error handling—and is known for post-exploitation creativity and data exfiltration tradecraft. Based in Greater Houston, he pairs strategic program leadership with daily red-team ops and mentorship, routinely translating complex adversary tactics into actionable detection and remediation guidance.
11 years of coding experience
Github Skills (8)
ruby10
meta-framework10
penetration-testing10
scanning10
vulnerability-scanners10
meta10
metasploit10
fest7
Programming languages (6)
Github contributions (5)
rapid7/metasploit-framework
Nov 2016 - Mar 2019
Metasploit Framework
Role in this project:
Security Engineer
Security EngineerContributions:11 commits, 6 PRs, 20 comments in 2 years 3 months
Contributions summary:John primarily focused on modifying existing Metasploit modules, likely to improve their functionality or address identified issues. The commits demonstrate the user's ability to identify and fix bugs, and refactor code within several auxiliary scanner modules. Contributions included modifications to output formatting and improving error handling across different modules, including HTTP and SMB scanners.
metasploit
jnqpblc/Misc-Python
May 2019 - Sep 2022
Contributions:31 commits, 37 pushes, 1 branch in 3 years 4 months
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