Senior Network & Firewall Engineer (Check Point)

Job description

* IT - Software Engineering * Zürich Grossraum * Contracting * Vollzeit * 01.12.2026 - 12 months (with possibility of extension) * TCP/IP, BGP, VPN **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