Cybersecurity Network Security Specialist [M/F]

Stackmine is engaged in maintaining, developing, and securing critical network infrastructure and cloud environments for an organization with high cybersecurity requirements.

• Minimum 5 years of experience in corporate network administration and security problem-solving.
• Strong knowledge of network technologies including TCP/IP, routing, DNS, DHCP, NTP, VPN, Wi-Fi, 802.1X/EAP, SSL/TLS, PKI, and network security principles.
• Practical experience with Palo Alto Networks solutions (Panorama, GlobalProtect), Cisco infrastructure, and network access control systems (NAC).
• Experience designing, implementing, and maintaining Microsoft Azure cloud environments including VNets, NSG, Private Link, Site-to-Site VPN, and hybrid connections.
• Knowledge of modern security architectures such as Zero Trust, SASE/SSE, microsegmentation, Web Application Firewall (WAF), and Load Balancing.
• Strong analytical and communication skills, independence, responsibility, teamwork ability, readiness for occasional business travel in Europe, and possession of category B driving license.
• Advanced English language proficiency.

• Administration, monitoring, and troubleshooting of network security solutions.
• Managing Palo Alto Networks environment including Panorama and GlobalProtect.
• Maintaining and developing Cisco-based network infrastructure.
• Managing security policies, analyzing firewall rules, and identifying potential security gaps.
• Designing, implementing, and maintaining VPN connections and remote access solutions.
• Operating and integrating NAC solutions and 802.1X/EAP technologies.
• Advanced network traffic diagnostics, packet analysis, and troubleshooting network and security layers.
• Providing L2 operational support for users and IT teams.
• Creating and updating technical documentation and operational procedures.
• Collaborating with infrastructure, security teams, and external vendors.
• Identifying optimization opportunities and proposing security improvements.

The candidate must be willing to travel occasionally within Europe and hold a category B driving license.