Senior Network & Firewall Engineer

Senior Network & Firewall Engineer (Check Point) (100%)

m/f/d, Zürich Grossraum

For our client in Zurich , we are looking for an Senior Network & Firewall Engineer (Check Point)

In this project , you will take on a key role in managing, securing, and optimizing a highly complex, business-critical network infrastructure within a Software as a Service (SaaS) environment serving multiple financial institutions . You will ensure the stability, security, and performance of enterprise network and firewall environments, with a particular focus on Check Point technologies, advanced networking, and high availability . Working closely with infrastructure, cloud, and security teams, you will contribute to the continuous improvement of secure and reliable network solutions.

Your Tasks:

• Administration, configuration, maintenance, and troubleshooting of Check Point Next Generation Firewalls (NGFW)
• Management of Check Point Security Management, SmartConsole, Security Gateways , and firewall policies
• Configuration and optimization of NAT, VPN connectivity, firewall rules, and network segmentation
• Operation and continuous improvement of complex enterprise network infrastructures in a business-critical SaaS environment
• Analysis and resolution of advanced network issues involving TCP/IP, BGP, OSPF, VLANs, routing, and switching
• Implementation and maintenance of high-availability solutions , including Check Point ClusterXL
• Execution of firewall upgrades, migrations, patching, and security hardening activities
• Ensuring secure connectivity and network isolation across multiple customer environments
• Troubleshooting of network performance, availability, and connectivity issues
• Participation in incident management, root cause analysis, and change management processes
• Collaboration with infrastructure, cloud, security, and application teams on network optimization and modernization initiatives

Your Profile:

• Professional experience in Network Engineering, Network Security, or Firewall Administration
• Extensive hands-on experience with Check Point Firewalls , including configuration, administration, policy management, and troubleshooting
• Strong expertise in enterprise networking, routing, switching, and network security
• In-depth knowledge of TCP/IP, BGP, OSPF, VLANs, NAT, IPsec VPNs, and network segmentation
• Proven experience working with large-scale, complex network infrastructures
• Experience supporting high-availability, security-critical production environments
• Good understanding of multi-tenant environments , secure customer connectivity, and network isolation
• Experience in banking, financial services, FinTech, or enterprise SaaS environments is highly desirable
• Knowledge of Check Point VSX, Multi-Domain Security Management (MDSM), and ClusterXL is an advantage
• Check Point certifications (CCSA/CCSE) are an advantage
• Experience with cloud networking (AWS/Azure) and network automation tools such as Python, Ansible, or Terraform is a plus
• Strong analytical and troubleshooting skills with a structured, independent, and solution-oriented approach
• Excellent communication skills and ability to collaborate with cross-functional technical teams
• Fluent English skills are required, German language skills are an advantage