Tomas Zellerin
Security Operations Center Architect & Lead
Prague, Prague, Czechia
Summary
👤
Senior🎓
Top SchoolTomas Zellerin is a Security Operations Center Architect and lead with 12 years of hands-on experience across security consulting, SOC design, and operations for banks, payment systems, and large multinationals. Trained as a physicist, he pivoted into programming and then into IT risk and security consulting at KPMG, blending deep technical testing (including PCI and penetration testing) with client-facing advisory work. He has led service improvement and troubleshooting teams at Wincor/Diebold Nixdorf, designed internal SOC content at Noibit, and improved security posture at Fortuna Entertainment Group. Comfortable working independently or as a technical lead, Tomas excels at translating complex operational details into practical, auditable controls and cleaner processes. A pragmatic problem-solver, he’s as likely to dive into accounting systems’ gory details as to streamline SOC playbooks and monitoring pipelines.
12 years of coding experience
5 years of employment as a software developer
Gymnazium JatečníMaster's, Master's at Charles University
Stackoverflow
406reputation
1kreached
8answers
1question
Github Skills (77)
common-lisp10
pentesting10
injection10
database9
elisp9
python9
lisp-interpreter9
sylvester9
sql-injection9
ssl-certificate9
sqlmap9
lisp9
interaction9
sql8
emacs8
Programming languages (6)
Github contributions (5)
zellerin/emacs.d
Jul 2017 - May 2020
Contributions:101 pushes, 2 branches in 2 years 10 months
zellerin/http2
Apr 2022 - Jan 2023
HTTP/2 implementation in Common Lisp
Contributions:187 commits, 2 PRs, 156 pushes in 9 months
common-lisphttp2
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