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.
- Provide L3 support for enterprise network infrastructure including Cisco routers, switches, WAN/LAN, datacenter, and branch connectivity
- Troubleshoot advanced networking issues involving:
- Routing & Switching
- VLANs & Trunking
- STP
- HSRP / VRRP
- ACLs
- BGP / OSPF / Static Routing
- Packet Loss & Latency
- Link Flaps & Asymmetric Routing
- Support network migrations, cutovers, onboarding activities, and service changes
- Monitor network utilization, interface errors, and overall network performance
- Provide L3 support for Palo Alto firewall environments
- Manage firewall policies, NAT, VPN, policy tuning, and traffic flow analysis
- Troubleshoot firewall-related issues impacting application communication and connectivity
- Support Panorama-managed environments and firewall governance activities
- Coordinate implementation of security controls aligned with enterprise standards
- Lead P1/P2 incident handling for network and security-related services
- Act as escalation point for major outages and recurring service issues
- Conduct root cause analysis and define corrective/preventive actions
- Execute planned changes with proper validation, rollback planning, and governance
- Ensure service restoration checks and change documentation are completed
- Manage operational activities across networking and security domains
- Drive SLA compliance, escalation handling, and operational prioritization
- Mentor L1/L2 engineers and support knowledge transfer initiatives
- Coordinate with customers, ISPs, OEMs, cloud teams, and internal technical teams
- Maintain SOPs, network diagrams, firewall documentation, and implementation standards
- Support audit, compliance, vulnerability remediation, and hardening initiatives
- Identify opportunities for optimization, standardization, and operational improvements
- 8+ years of experience in enterprise network and network security operations
- Strong hands-on expertise in Cisco networking technologies
- Strong hands-on expertise in Palo Alto firewalls
- Good understanding of:
- Routing & Switching
- VLANs, Trunking, STP
- OSPF / BGP
- ACLs
- NAT & VPN
- Network Segmentation
- Firewall Policy Evaluation
- Packet Flow Analysis
- Experience in enterprise datacenter, branch, and hybrid network environments
- Strong troubleshooting skills across networking and security layers
- Excellent incident management and stakeholder coordination skills
- Strong analytical, documentation, and reporting capabilities
- Ability to independently handle L3 escalations and high-priority incidents
Note: For this position, Dutch and English communication proficiency mandatory.
- Exposure to cloud connectivity and cloud security integrations
- Experience with monitoring tools and security log analysis
- Scripting or automation exposure for operational efficiency
- ITIL process understanding
- Vendor coordination and escalation management experience
- Familiarity with OT or industrial infrastructure environments
- Competitive salary package and long-term project opportunities
- Opportunity to work on enterprise-scale network and security environments
- International and collaborative work culture
- Exposure to modern networking, cybersecurity, and hybrid infrastructure technologies
- Career growth and leadership opportunities
- 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”.
