10/31/2026 updated
100 % available
Network Architect | Senior Network & Security Engineer
Markvartice, Czech Republic
Only remote
Cisco CCNA, CCNP, CCDP, Juniper JNCIP-ENT, JNCIP-SP, Fortinet NSE 4, Checkpoint CCSA & CCSECisco Certified Entry Networking TechnicianCisco Certified Internetwork ExpertCisco Certified Internetwork Expert Security (CCIE Security)Cisco Certified Internetwork ProfessionalCisco Certified Network AssociateCisco Certified Network Associate Security (CCNA Security)Cisco Certified Network ProfessionalCisco Certified Security ProfessionalCertified Wireless Network AdministratorCisco PIXCisco Certified Design AssociateCisco HardwaresCisco RoutersCisco Systems VPN ClientComplex Networks
I can resolve network issues in your organization, keep your network secure, monitor health and security. Recommend changes and upgrades that make sense, tailored to your needs.
I'm open to long term cooperation as well as one time help.
From design to implementation – corporate networks of any size, data centers, and cloud environments.
I can augment your company’s internal team with an experienced network and security specialist. I will identify vulnerabilities, develop solutions, and ensure your network operates reliably and securely—without unnecessary expenses.
With 24 years of industry experience, I have built and overhauled networks ranging from those of local ISPs to the global infrastructures of multinational corporations. While I specialize in Fortinet and Cisco, I am also highly proficient with Palo Alto, Check Point, Juniper, MikroTik, and other platforms.
HOW I CAN HELP
Corporate network design and implementation – LAN, WAN, corporate Wi-Fi, and VPN solutions for branch offices and data centers.
Network security and firewalls – infrastructure protection, firewall management, threat monitoring, secure remote access.
WAN modernization – replacing costly dedicated lines with modern architectures that reduce expenses while simplifying network management and security.
Cloud and data center connectivity – secure hybrid networks and the integration of on-premises infrastructure with cloud services.
Network management and oversight – monitoring, maintenance, and rapid incident resolution.
Support for internal IT – providing senior-level expertise where your team may lack it, including emergency intervention.
Experience
Professional experience10+ years
Freelancer since2020
Languages
EnglishFluentCzechNative speaker
Project history
Lead global network infrastructure (Cloud, LAN, WAN, WLAN, Security)
Deployment of Palo Alto - Prisma Access SASE (Strata Cloud Manager)
Infobolox SAAS desing and implementation (DHCP/DNS/IPAM)
Responsible for design and implementation of global WAN utilizing Fortinet ADVPN as well as LAN and WLAN design and configuration standards used globally at all sites and datacenters.
Design und Leitung der globalen Migration von Managed MPLS WAN zu einer In-House Cisco DMVPN-Loesung ueber das Internet in 8 Monaten. Erhebliche Kostenreduzierung, Steigerung des WAN-Durchsatzes und Verbesserung der Netzwerkverfuegbarkeit. Management von 300+ Netzwerkgeraeten weltweit mittels Bash/Expect-Scripting. Administration der Cisco WLC-Umgebung mit 1000+ Access Points und Cisco ASA + AnyConnect VPN.