Martijn Katerbarg
CA B S MIME Working Group Vice-Chair at CA/Browser Forum
Stockholm, Sweden
Summary
👤
Senior🎓
Top SchoolMartijn Katerbarg is a PKI and WebPKI specialist with 15+ years of hands-on experience across SSL/TLS, signing certificates, validation and compliance roles at Xolphin and Sectigo. As CA/B Forum S/MIME Working Group Vice‑Chair and current Senior Compliance Engineer at Sectigo, he blends policy leadership with technical implementation and auditing. A seasoned PHP developer and pen‑test enthusiast, Martijn pairs practical programming skills with deep security expertise and a home-lab mindset. Dutch-born and Stockholm‑based, he has led country operations, sales engineering, and technical support—making him as comfortable in customer-facing roles as in standards development. Notably, he combines long-term product experience with active involvement in shaping S/MIME practices used across the industry.
10 years of coding experience
5 years of employment as a software developer
Drenthe College
Github Skills (30)
x50910
forum10
security9
browser9
pki9
linter9
mime9
api8
code-signing8
ansible-collections7
signing7
php7
mozilla6
routeros6
certificate6
Programming languages (7)
Github contributions (5)
XolphinMartijn/smime
Jun 2022 - Sep 2024
Contributions:2 PRs, 16 pushes, 6 branches in 2 years 4 months
sslrouteroscertificatemimeworking-group
xolphin/xolphin-api-.net
May 2017 - Dec 2022
.Net wrapper for the Xolphin SSL API
Contributions:2 releases, 1 review, 3 PRs in 5 years 8 months
apissl
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