Peter Mosmans
Security Engineer at Go Forward
Netherlands
Summary
👤
SeniorPeter Mosmans is a Security Engineer and lead pentester with 12 years of hands-on experience securing web applications across design, development, testing, and operations. He advises on threat modeling, embeds automated security tests into CI/CD (DevSecOps), and conducts thorough web penetration tests while translating findings for non-technical stakeholders. An experienced trainer and presenter, he builds workshops and documentation to transfer knowledge and standardize security practices across teams. His open-source contributions include refactoring and hardening the widely used testssl.sh TLS/SSL testing tool, showing attention to detail in vulnerability detection and tooling reliability. Colleagues describe him as passionate, adaptable, and precise—equally comfortable inspiring people or diving into legacy code to remove fragile methods. Based in the Netherlands, he combines practical tooling improvements with long-term process improvements to make web security repeatable and measurable.
12 years of coding experience
Github Skills (19)
ssl10
tls1210
scripting10
testing10
tls1310
mtls10
security-testing10
script10
openssl10
libtls10
sh10
shell10
crypt8
block-cipher8
caesar-cipher8
Programming languages (20)
Github contributions (5)
testssl/testssl.sh
Nov 2014 - Jun 2016
Testing TLS/SSL encryption anywhere on any port
Role in this project:
Security Engineer
Security EngineerContributions:19 commits, 18 PRs, 92 comments in 1 year 7 months
Contributions summary:Peter's contributions primarily focus on improving the security testing capabilities of the `testssl.sh` tool. They refactored significant portions of the codebase, moving specific status messages to dedicated functions related to various vulnerabilities (e.g., Heartbleed, CRIME, POODLE). The user also fixed bugs, addressed typos, and updated the tool to incorporate the latest git commit information for troubleshooting purposes. Furthermore, the user removed legacy methods and updated/corrected several functions.
rc4drownopenssltlsanywhere
PeterMosmans/ansible-role-compact-box
Nov 2015 - Sep 2017
Contributions:30 commits, 22 pushes, 1 branch in 1 year 10 months
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