Ondřej Borýsek
Cyber Security Engineer, Senior at T-Mobile Czech Republic a.s.
Brno, Southeast, Czechia
Summary
👤
Senior🎓
Top SchoolOndřej Borýsek is a Senior Cyber Security Engineer with a decade of hands-on experience building cloud-native threat intelligence and automation for T‑Mobile Czech Republic and Deutsche Telekom’s Cyber Defense Center. He combines formal academic training in information security with practical roles in network monitoring, incident analysis, and solo server administration for non-profits, giving him rare visibility into both enterprise-scale and grassroots operational challenges. A Python programmer and self-hosting enthusiast, he automates infrastructure and security workflows from cloud architectures to home lab setups. He has taught low-level programming and cryptography seminars, underscoring an ability to translate complex technical concepts for learners and stakeholders. Colleagues rely on him for pragmatic, auditable solutions that bridge packet-level visibility and cloud automation.
10 years of coding experience
Master's degree, Computer and Information Systems Security/Information Security, Master's degree, Computer and Information Systems Security/Information Security at Masaryk University BrnoCyber Security, Cyber Security at Università degli Studi di CagliariGymnázium, Brno, třída Kapitána Jaroše 14Norwegian University of Science and Technology
English, Czech
Stackoverflow
91reputation
5kreached
9answers
0questions
Github Skills (95)
penetration-testing10
transmission10
security10
docker-container10
collaboration10
infosec10
torrent10
vulnerabilities10
pentest10
report-generator10
audit10
openvpn10
pentesting10
vpn9
tunnel9
Programming languages (14)
Github contributions (5)
TLSInventory/backend
Jul 2020 - Dec 2022
This is backend of application TLSInventory - a monitoring system for web certificates and SSL/TLS configurations.
Contributions:2 releases, 7 reviews, 12 PRs in 2 years 5 months
letsencryptssltlscertificatesssl-tls
TLSInventory/frontend
Jul 2020 - Dec 2022
This is frontend of application TLSInventory - a monitoring system for web certificates and SSL/TLS configurations.
Contributions:1 release, 19 PRs, 83 pushes in 2 years 5 months
ssltlscertificatesssl-tlsssl-certificate
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