Must have

• Network

• Security

• Firewall

• DNS

• DHCP

• IPAM

• VPN

• Microsoft Azure

• Polish (B2)

• English (B2)

Nice to have

• NDR

Requirements description

• Extensive experience (typically 5–8+ years) in network and perimeter security engineering in complex, multi-site or hybrid environments
• Proven expertise with Next-Generation Firewalls (NGFW), including policy design, traffic analysis, and security feature implementation (preferably Palo Alto or Check Point)
• Strong understanding of network infrastructure components and services: DNS, DHCP, IPAM, VPN, routing, and switching
• Hands-on experience with cloud networking and security (Microsoft Azure preferred; AWS/GCP experience beneficial)
• Ability to architect secure connectivity solutions, including segmentation, access control, and encryption mechanisms
• Analytical and conceptual thinking, with the ability to challenge existing solutions and propose well-reasoned alternatives
• Experience working in regulated environments (Healthcare, Manufacturing, or similar) and knowledge of compliance frameworks (ISO 27001, NIS2, GDPR)
• Excellent communication skills with the ability to collaborate effectively across global teams

Nice to Have:

• Experience with Network Detection and Response (NDR) tools and integrations
• Knowledge of Web Application Firewall (WAF) configuration and management
• Familiarity with firewall analyzer and compliance auditing tools
• Scripting or automation experience (Python, PowerShell, Ansible) for policy management and reporting
• Professional certifications such as PCNSE, CCNP Security, GIAC GCFW, Azure Network Engineer Associate, or CISSP

Offer description

As Fresenius Digital Technology, we are an integral part of the Fresenius Group, responsible for the IT of the healthcare group and its business segments. We ensure a frictionless interface of IT and business operations so that all employees in production, logistics, and other areas can work efficiently and without interference.

The Senior Security Network Engineer plays a key role in designing, securing, and continuously improving the company’s global network infrastructure. This position combines deep technical expertise with strategic insight, ensuring that all network components and connections — both on-premise and in the cloud — are aligned with modern cybersecurity standards and business requirements.

The Senior Engineer serves as a subject-matter expert for network and perimeter security, leading initiatives to strengthen resilience, reduce risk, and support secure digital transformation across the organization.

Your responsibilities

1. Perform advanced analysis of the network environment, identifying vulnerabilities, misconfigurations, and optimization opportunities in firewall and network security policies
2. Design, implement, and maintain secure network architectures, covering LAN/WAN, hybrid cloud connectivity, and remote access solutions
3. Provide expert-level operational support for critical network security platforms, ensuring availability, scalability, and compliance with internal and external standards
4. Lead or co-lead projects related to the rollout of network security solutions, segmentation frameworks, or zero-trust network initiatives
5. Develop and maintain security baselines, technical guidelines, and best practices for network and perimeter security
6. Collaborate closely with architecture, infrastructure, and cloud teams to integrate network security controls into enterprise systems

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