Location: Antwerp
Experience: 8+ Years
No. of Positions: 2
Job Type: Full-time
Start Date: ASAP
We are looking for an experienced Operations Manager – OT Infrastructure / Senior Network & Security Engineer with strong expertise in Cisco networking and Palo Alto firewall technologies.
The ideal candidate will be responsible for end-to-end L3 support, operational management, troubleshooting, and governance of enterprise network and network security environments across datacenter, branch, hybrid, and OT infrastructure landscapes.
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Provide L3 support for enterprise network infrastructure including Cisco routers, switches, WAN/LAN, datacenter, and branch connectivity
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Troubleshoot advanced networking issues involving:
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Routing & Switching
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VLANs & Trunking
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STP
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HSRP / VRRP
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ACLs
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BGP / OSPF / Static Routing
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Packet Loss & Latency
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Link Flaps & Asymmetric Routing
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Support network migrations, cutovers, onboarding activities, and service changes
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Monitor network utilization, interface errors, and overall network performance
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Provide L3 support for Palo Alto firewall environments
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Manage firewall policies, NAT, VPN, policy tuning, and traffic flow analysis
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Troubleshoot firewall-related issues impacting application communication and connectivity
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Support Panorama-managed environments and firewall governance activities
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Coordinate implementation of security controls aligned with enterprise standards
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Lead P1/P2 incident handling for network and security-related services
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Act as escalation point for major outages and recurring service issues
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Conduct root cause analysis and define corrective/preventive actions
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Execute planned changes with proper validation, rollback planning, and governance
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Ensure service restoration checks and change documentation are completed
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Manage operational activities across networking and security domains
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Drive SLA compliance, escalation handling, and operational prioritization
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Mentor L1/L2 engineers and support knowledge transfer initiatives
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Coordinate with customers, ISPs, OEMs, cloud teams, and internal technical teams
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Maintain SOPs, network diagrams, firewall documentation, and implementation standards
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Support audit, compliance, vulnerability remediation, and hardening initiatives
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Identify opportunities for optimization, standardization, and operational improvements
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8+ years of experience in enterprise network and network security operations
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Strong hands-on expertise in Cisco networking technologies
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Strong hands-on expertise in Palo Alto firewalls
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Good understanding of:
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Routing & Switching
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VLANs, Trunking, STP
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OSPF / BGP
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ACLs
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NAT & VPN
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Network Segmentation
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Firewall Policy Evaluation
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Packet Flow Analysis
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Experience in enterprise datacenter, branch, and hybrid network environments
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Strong troubleshooting skills across networking and security layers
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Excellent incident management and stakeholder coordination skills
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Strong analytical, documentation, and reporting capabilities
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Ability to independently handle L3 escalations and high-priority incidents
Note: For this position, Dutch and English communication proficiency mandatory.
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Exposure to cloud connectivity and cloud security integrations
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Experience with monitoring tools and security log analysis
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Scripting or automation exposure for operational efficiency
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ITIL process understanding
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Vendor coordination and escalation management experience
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Familiarity with OT or industrial infrastructure environments
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Competitive salary package and long-term project opportunities
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Opportunity to work on enterprise-scale network and security environments
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International and collaborative work culture
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Exposure to modern networking, cybersecurity, and hybrid infrastructure technologies
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Career growth and leadership opportunities
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High-impact operational role with strong ownership and technical decision-making exposure
If this opportunity excites you, send your application to
[email protected] with the subject
“Application for Operations Manager – OT Infrastructure / Senior Network & Security Engineer | Antwerp | Full Time”.
