Senior Global Network Security & Firewall Engineer

Sii Poland; Łódź; On-site; PLN 180,000 - 240,000; Full time

Job summary

Sii Poland is seeking an experienced IT security specialist to join the team responsible for global security infrastructure. You will support and maintain firewalls, WAF, VPN, and collaborate with IT teams worldwide.

You will monitor security resources, ensure their integrity, and provide early incident response in a fast-paced environment. The role requires 5+ years in IT security, experience with enterprise firewalls, Azure tools, SIEM, and basic automation.

Qualifications

• Minimum 5 years of IT security experience.
• Experience with enterprise-class firewalls and VPN, WAF, and IPS/IDS.
• Familiarity with Azure security tools and SIEM platforms.
• Strong networking knowledge and basic automation skills (Python/PowerShell/API).
• Excellent English (B2/C1) and Polish language skills.
• Willingness to travel for a deployment trip to Switzerland.
• Analytical thinking and strong teamwork in a dynamic setting.

Responsibilities

• Maintain and manage security infrastructure components (firewalls, WAF, VPN).
• Monitor health and performance of security resources.
• Provide level 1 and 2 security incident support.
• Collaborate with security engineering to enforce best practices.
• Maintain up-to-date technical documentation.
• Coordinate with local and international IT teams for operational synergy.
• Support continuous improvement of security operations processes.

Skills

English proficiency

Analytical thinking

Teamwork

Communication

Python

PowerShell

API automation

Networking knowledge

Tools

Palo Alto

Fortinet

Cisco ASA/Firepower

Azure Firewall

NSG

Sentinel

Defender

SIEM

TCP/IP

Routing

Switching

VLAN

Python

PowerShell

API

Job description

Sii Poland is seeking an experienced IT security specialist to join the team responsible for global security infrastructure. You will support and maintain firewalls, WAF, VPN, and collaborate with IT teams worldwide.

You will monitor security resources, ensure their integrity, and provide early incident response in a fast-paced environment. The role requires 5+ years in IT security, experience with enterprise firewalls, Azure tools, SIEM, and basic automation.