Network Security EngineerLocation: Brussels, Belgium (Hybrid/On-site)Contract: 6 Months (Extension possible) Sector: Manufacturing Languages: Fluent French or Dutch (English a plus) Start: ASAPOverviewWe are seeking an experienced Network Security Engineer to support a manufacturing client in Brussels. This is a hands-on role focused on securing, supporting, and optimising enterprise network and security infrastructure across IT and production environments.ResponsibilitiesDesign, implement, and support secure network infrastructureManage firewalls, VPNs, routing, switching, and network segmentationSupport security technologies including IDS/IPS, NAC, and secure remote accessMaintain and improve IT/OT network security and segmentationInvestigate incidents, perform vulnerability remediation, and support security hardeningCollaborate with infrastructure and operations teams on security initiativesSupport documentation, change management, and continuous improvementRequired SkillsStrong network security engineering experienceExpertise in TCP/IP, DNS, DHCP, BGP, OSPFHands-on experience with Cisco, Palo Alto, Fortinet, Check Point or similarStrong knowledge of firewalls, VPNs, IDS/IPS, and network segmentationExperience in enterprise or manufacturing/OT environments preferredKnowledge of ISO 27001, NIST, or IEC 62443 is a plusDesirableZero Trust or cloud security exposure (Azure/AWS)Automation/scripting (Python, Ansible)Certifications such as CCNP Security, PCNSE, CISSPProfileHands-on and practical approachStrong troubleshooting and communication skillsFluent in French or Dutch (mandatory)