- IT systems architectStrong knowledge in complex server acrhitectures in heterogeneous environment (Windows, UNIX). Server virtualization, Internet/Intranet services, mobile solutions, unified communication, datacenter opartions management, business continuity & disaster recovery management- IT operations - Network managerSwitching & routing, IP security, VoIP technology,Wan accelereation- IT securityImplementing enterprise security solutions, responsible for vulnerability assessments. Establishing enetrprise security through policies. Firewalls, IDS, IPS, mobile security- Project Manager for web based business applications participating in the complete product development lifecycle. Knowledge in architecting and managing ASP/Dotnet, Java platforms. Management of complex projects relating to It systems and network architectures. Responsible for telecommunication services- appassionate about IT security and interested in all emerging technologies in offensive and defensive security. I like writing and speaking about IT security and bug hunting, especially in Windows environments. Author of several CVE's , ranked in top 100 Microsoft Most Valuable Security Researcher 2022