10/25/2026 updated
Premium member
100 % availableSr. Network Engineer
Praha 9, Czech Republic
Worldwide
IT, electronics, managementAbout me
Over 12 years of experience with designing, operating and troubleshooting complex networks and doing transformation or acquisition project works. Leading the consultation activities with focused on result and customer satisfaction.
Cisco Certified Network AssociateCisco Certified Network ProfessionalVirtual Private Networks (VPN)VirtualizationFirewalls (Computer Science)CiscoVMware
Proficient with SD-WAN [Viptela, Velocloud, Fortinet, Silverpeak], LAN, campus networking incl WLC based WiFi [mainly Cisco], experience with F5 BIG IP, Vmware ESXi and VNF, security design and management of firewalls [Palo, Cisco, Fortinet, Checkpoint], DC routing based on Nexus 7/9/K and ACI.
Zscaler Zero Trust, LAN, WAN, wireless, firewall, security, operations, Cisco, Fortinet, Velocloud, VMware, virtualization, CCNA, CCNP, CCDP, Meraki, ITILv3
keywords for technologies:
routing + protocols, switching, BGP, OSPF, EIGRP, MPLS, VPN, FHRP, ISR, ASR 1K, Nexus 5/7/9, Catalyst, design, DMVPN, IPAM, Infoblox, F5 + load balancing, AWS, Azure, ZTN, Entra ID, AD
Experience
Professional experience10+ years
Freelancer since2022
Languages
EnglishFluentPolishGoodCzechNative speaker
Project history
Transformed 400 sites to SDWAN and lead activities to change WAN ISP circuits and optimize HA on global scale, including DCs and cloud
LAN, WAN transformation [DMVPN > SDWAN, LAN segmentation]
Certificates
ZDTA
Zscaler2026
CCDP
Cisco2018
ITIL
ITIL PeopleCert2017
CCNP
Cisco2015