He works as Lead lead penetration tester at IstroSec. He focuses on red teaming, social engineering and application testing. Previously, he worked as a Penetration tester at CSIRT.SK and then as Head of Offensive Department at a private company. He is interested in bug bounty and responsible disclosure, where he found multiple CVEs in web applications, mobile applications, IoT systems and automotive. He holds multiple certifications - GIAC Cloud Penetration Tester (GCPN), Offensive Security Certified Professional (OSCP), Offensive Security Wireless Professional (OSWP), Certified Red Team Professional (CRTP), and Certified Red Team Expert (CRTE).