Ioannis S.

Ioannis S. is a seasoned network security professional with extensive experience in IP network security engineering and technical support. Currently serving as a Sr. IP Network Security Engineer at ING since August 2021, Ioannis previously held roles at A10 Networks, LeaseWeb, and Nokia, where responsibilities included firewall configuration, troubleshooting, and network design within complex IPv4/IPv6 environments. Academic qualifications include an MSc in Advanced Networking and a Postgraduate Diploma in Networking from The Open University, along with multiple certifications in Cisco technology. Ioannis began a career in customer service and technical support, demonstrating a strong foundation in both network engineering and client relations.