Network Infrastructure / Security Engineer

Our client is a medium-sized IT company based in Switzerland, grouping over 100 employees and ensuring the design and evolution of critical environments for a network of multi-site partners. In the context of strengthening its Infrastructure department, we are looking for a Senior Network/Security Infrastructure Engineer.MISSION DESCRIPTIONWithin the network team, you contribute to the support, evolution, and maintenance of LAN, WAN, and distributed multi-site infrastructures. Your responsibilities will include:• Designing, implementing, and maintaining complex network architectures• Developing and implementing security policies and procedures• Collaborating with other teams to ensure seamless integration of new technologies• Troubleshooting and resolving technical issues in a timely manner• Staying up-to-date with the latest developments in networking and security technologies• Participating in on-call rotation for 24/7 support• Providing expert-level guidance and training to junior engineers• Developing and maintaining documentation for network architectures, configurations, and procedures• Collaborating with other teams to ensure compliance with industry standards and regulations. REQUIREMENTS• Bachelor's or Master's degree in Computer Science, Network Engineering, or related field• At least 5 years of experience as a Senior Network/Security Engineer• Strong understanding of networking protocols (TCP/IP, DNS, DHCP, etc.)• Experience with network security technologies (firewalls, VPNs, IDS/IPS, etc.)• Familiarity with cloud-based infrastructure and services (AWS, Azure, Google Cloud, etc.)• Knowledge of virtualization technologies (VMware, Hyper-V, KVM, etc.)• Strong analytical and problem-solving skills• Excellent communication and collaboration skills• Ability to work in a fast-paced environment with multiple priorities• Certification in CompTIA Network+, Cisco CCNA, or similar is an asset. BENEFITS• Competitive salary• Comprehensive health insurance• Generous pension plan• 20 days of annual leave• Flexible working hours• Opportunities for professional growth and development• A dynamic and supportive work environment.