My focus is Network Security Engineering, mainly working with Palo Alto Networks, Fortigate and Juniper.
Aktualisiert am 21.04.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 01.05.2026
Verfügbar zu: 100%
davon vor Ort: 0%
Palo Alto Firewall
Fortigate
Juniper

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

2 years 1 month
2024-04 - now

Configuration and management of a regulated government infrastructure

Network Security Engineer
Network Security Engineer
Configured and managed regulated government infrastructure consisting of 100+ Palo Alto NGFWs via Panorama and DC-core FortiGate following strict change processes in a multi-time-zone operational model
  • Palo Alto Networks expertise:
    • Managed and optimized Panorama at scale, including template stacks, device groups, and standardized policy deployment for multi-site segmentation
    • Configured and troubleshot IPsec VPNs with static routing
    • Implemented GlobalProtect VPN with RADIUS authentication against FortiAuthenticator
    • Migrated security policies from port-based to App-ID for improved visibility and security
    • Configured and enforced Zero Trust segmentation, URL Filtering, and SSL Decryption policies
    • Designed a migration approach from static routing to BGP in a lab environment (not implemented due to policy constraints)
  • Configured enterprise LAN switching (Aruba, HP, Cisco Nexus) including RPVSTP+, VLAN trunking and access/core designs
  • Configured FortiWeb (server pools, VIPs, security policies, traffic inspection)
  • Collaborated with SOC teams on threat response, incident investigation (Rapid7, FortiSIEM, SentinelOne)
  • Managed Forcepoint Web Security and Email Security solutions for 1500+ government users
  • Administered VMware ESXi, Proxmox environments (VM provisioning, maintenance, and custom service deployments)
  • Designed and implemented Ansible automation workflows for Aruba switch upgrades
CALLUS
Bratislava (Slovakia)
3 years
2021-05 - 2024-04

Designed and deployed small LAN networks

Network Engineer
Network Engineer
  • Configured Juniper SRX firewalls (routing, security policies, IPsec VPNs)
  • Deployed and maintained Juniper CX L2 enterprise switching
  • Designed and deployed small LAN networks (Juniper, Ubiquiti, Zyxel)
  • Deployed small Docker-based projects for testing labs with newly developed network solutions
  • Maintained 3-node Proxmox cluster for customer VMs (CentOS, Ubuntu, Windows Server)
  • Administered Windows AD domains (GPOs, OU structure, domain security)
  • Managed internal Microsoft Exchange and O365 services (mailboxes, distribution groups, and mail flow)
  • Coordinated support team on user onboarding/offboarding, resource allocation and access management
Thiss Tech
Bratislava (Slovakia)

Aus- und Weiterbildung

Aus- und Weiterbildung

2 years 9 months
2022-09 - 2025-05

Study - Computer Systems and Telecommunications

Slovak University of Technology (STUBA), Bratislava (Slovakia)
Slovak University of Technology (STUBA), Bratislava (Slovakia)

Kompetenzen

Kompetenzen

Top-Skills

Palo Alto Firewall Fortigate Juniper

Produkte / Standards / Erfahrungen / Methoden

Profile
Dynamic Palo Alto Specialist with extensive experience delivering sane, scalable solutions in high-pressure environments. While I feel the most confident about Palo Alto NGFWs, I remain a versatile multi-vendor engineer capable of solving any complex networking challenge.

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

2 years 1 month
2024-04 - now

Configuration and management of a regulated government infrastructure

Network Security Engineer
Network Security Engineer
Configured and managed regulated government infrastructure consisting of 100+ Palo Alto NGFWs via Panorama and DC-core FortiGate following strict change processes in a multi-time-zone operational model
  • Palo Alto Networks expertise:
    • Managed and optimized Panorama at scale, including template stacks, device groups, and standardized policy deployment for multi-site segmentation
    • Configured and troubleshot IPsec VPNs with static routing
    • Implemented GlobalProtect VPN with RADIUS authentication against FortiAuthenticator
    • Migrated security policies from port-based to App-ID for improved visibility and security
    • Configured and enforced Zero Trust segmentation, URL Filtering, and SSL Decryption policies
    • Designed a migration approach from static routing to BGP in a lab environment (not implemented due to policy constraints)
  • Configured enterprise LAN switching (Aruba, HP, Cisco Nexus) including RPVSTP+, VLAN trunking and access/core designs
  • Configured FortiWeb (server pools, VIPs, security policies, traffic inspection)
  • Collaborated with SOC teams on threat response, incident investigation (Rapid7, FortiSIEM, SentinelOne)
  • Managed Forcepoint Web Security and Email Security solutions for 1500+ government users
  • Administered VMware ESXi, Proxmox environments (VM provisioning, maintenance, and custom service deployments)
  • Designed and implemented Ansible automation workflows for Aruba switch upgrades
CALLUS
Bratislava (Slovakia)
3 years
2021-05 - 2024-04

Designed and deployed small LAN networks

Network Engineer
Network Engineer
  • Configured Juniper SRX firewalls (routing, security policies, IPsec VPNs)
  • Deployed and maintained Juniper CX L2 enterprise switching
  • Designed and deployed small LAN networks (Juniper, Ubiquiti, Zyxel)
  • Deployed small Docker-based projects for testing labs with newly developed network solutions
  • Maintained 3-node Proxmox cluster for customer VMs (CentOS, Ubuntu, Windows Server)
  • Administered Windows AD domains (GPOs, OU structure, domain security)
  • Managed internal Microsoft Exchange and O365 services (mailboxes, distribution groups, and mail flow)
  • Coordinated support team on user onboarding/offboarding, resource allocation and access management
Thiss Tech
Bratislava (Slovakia)

Aus- und Weiterbildung

Aus- und Weiterbildung

2 years 9 months
2022-09 - 2025-05

Study - Computer Systems and Telecommunications

Slovak University of Technology (STUBA), Bratislava (Slovakia)
Slovak University of Technology (STUBA), Bratislava (Slovakia)

Kompetenzen

Kompetenzen

Top-Skills

Palo Alto Firewall Fortigate Juniper

Produkte / Standards / Erfahrungen / Methoden

Profile
Dynamic Palo Alto Specialist with extensive experience delivering sane, scalable solutions in high-pressure environments. While I feel the most confident about Palo Alto NGFWs, I remain a versatile multi-vendor engineer capable of solving any complex networking challenge.

Vertrauen Sie auf Randstad

Im Bereich Freelancing
Im Bereich Arbeitnehmerüberlassung / Personalvermittlung

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