Senior Global Network Engineer — Azure & Security

ISS Tech Team; Warszawa; Hybrid; PLN 180,000 - 300,000; Full time

Job summary

ISS Tech Team in Warsaw, Poland, is seeking a Senior Network Engineer to design, operate and continuously improve our global network and cloud connectivity. You will contribute to secure, scalable infrastructure across regions, working in a hybrid environment with international teams.

The role focuses on Palo Alto, Cisco Meraki, UniFi and Azure networking, with emphasis on automation, documentation and operational excellence to ensure high availability and strong security for the business

Qualifications

• Strong hands-on experience in network engineering within complex enterprise or global network environments.
• Solid experience with next-generation firewalls, especially Palo Alto Networks.
• Practical experience with Cisco Meraki network environments.
• Practical experience with UniFi network components.
• Strong Azure networking skills, including experience with cloud connectivity and hybrid network environments.
• Strong knowledge of VPN technologies, including site-to-site VPN and remote access VPN.
• Solid experience with IPsec-based connectivity.
• Strong understanding of routing concepts, including static and dynamic routing.
• Practical experience with BGP.
• Good understanding of network security principles and secure network design.
• Experience in troubleshooting complex network issues across LAN, WAN, firewall, VPN, routing and Azure connectivity environments.
• Ability to work in English within an international team.

Responsibilities

• Design, operate, maintain and continuously improve the global network and cloud connectivity infrastructure across multiple regions and business units.
• Design, support and manage network environments based on technologies such as Palo Alto, Cisco Meraki, UniFi and Microsoft Azure networking services.
• Troubleshoot complex network and cloud connectivity issues, including LAN, WAN, firewall, VPN, routing and Azure networking topics.
• Contribute to global network and cloud projects, including standardization, lifecycle management, migrations and rollouts.
• Support secure connectivity between on-premises environments and Microsoft Azure, including VPN and routing‑related configurations.
• Support the development and implementation of network automation to improve efficiency, consistency and reliability.
• Work closely with international IT teams, cloud teams, security teams, service providers and local stakeholders.
• Ensure high availability, performance and security of business‑critical network and connectivity services.
• Create and maintain technical documentation, network standards and operational procedures.
• Provide technical guidance and act as an escalation point for complex network, firewall, VPN and Azure connectivity topics.
• Identify opportunities to improve network operations, monitoring, automation and service quality.

Skills

Network engineering

English communication

Troubleshooting

collaboration

Tools

Palo Alto Networks

Cisco Meraki

UniFi

Microsoft Azure networking

VPN

IPsec

BGP

Job description

ISS Tech Team in Warsaw, Poland, is seeking a Senior Network Engineer to design, operate and continuously improve our global network and cloud connectivity. You will contribute to secure, scalable infrastructure across regions, working in a hybrid environment with international teams.

The role focuses on Palo Alto, Cisco Meraki, UniFi and Azure networking, with emphasis on automation, documentation and operational excellence to ensure high availability and strong security for the business