Confidential-Third Party
Experience: 8+ years
Location: Belgium
Language: Dutch and English mandatory
Key Expectations from the Role:
The Operations Lead – OT Infrastructure is expected to:
Take end-to-end ownership of OT infrastructure operations and service stability.
Ensure critical plant / industrial infrastructure is maintained with minimal disruption.
Manage incidents with urgency and strong coordination across technical towers.
Enforce strict change governance in production-sensitive OT environments.
Work effectively with plant operations, engineering, IT, cybersecurity, and vendors.
Improve visibility of operational risks, aging assets, recurring issues, and pending dependencies.
Maintain strong documentation, process discipline, and escalation governance.
Drive service quality, operational consistency, and infrastructure resilience across OT environments.
Required Skills and Experience
Technical / Functional Knowledge
Good understanding of OT infrastructure environments supporting industrial or plant operations.
Experience in managing infrastructure operations covering combinations of:industrial servers
Windows/Linux systems in OT environments
virtualization platforms
network infrastructure
firewall/security controls
remote connectivity
backup/recovery support
endpoint or site infrastructure
Confidential-Third Party
Understanding of OT environment considerations such as:
plant uptime sensitivity
Production impact awareness
controlled access
limited change windows
vendor/OEM dependency
operational safety considerations
Good knowledge of incidents, problem, change, and service operations in production-critical environments.
Role Summary
The Operations Lead – Senior Network & Network Security Engineer is responsible for end-to-end L3 support and operational management of enterprise network and network security infrastructure, with strong hands-on expertise in Cisco networking and Palo Alto firewalls. The role requires advanced troubleshooting ability across routing, switching, firewalling, VPN, and service availability domains, along with incident leadership, change execution governance, stakeholder management, and service improvement ownership.
Key Roles and Responsibilities
Technical Operations – Network
Provide L3 support for enterprise network infrastructure including:
Cisco routers
switches
WAN/LAN environments
datacenter connectivity
branch connectivity
Troubleshoot advanced network issues involving:
routing
switching
VLANs
trunking
Confidential-Third Party
STP
HSRP/VRRP
ACLs
BGP/OSPF/static routing
link flaps
packet loss
latency
asymmetric routing
Support network changes, cutovers, migrations, and service onboarding.
Analyze network utilization, port issues, interface errors, and performance degradation.
Technical Operations – Network Security
Provide L3 support for Palo Alto network security environment.
Handle security rule changes, NAT, VPN, policy tuning, traffic flow analysis, and security troubleshooting.
Troubleshot firewall impact to application communication and internet/intranet access.
Support Panorama-managed environments and policy governance.
Coordinate implementation and review of security controls in line with operational and security standards.
End-to-End Service Troubleshooting
Perform deep-dive troubleshooting across both network and firewall layers to isolate service-impacting issues quickly.
Conduct packet-level analysis and path validation where required.
Coordinate with ISPs, carriers, cloud teams, datacenter teams, and application teams during issue resolution.
Support hybrid connectivity use cases involving WAN, internet breakout, VPN, and cloud-connected services.
Confidential-Third Party
Incident / Problem / Change Management
Lead P1/P2 incident handling for network and network security services.
Act as technical escalation point for complex outages and recurring service degradation.
Conduct root cause analysis and define corrective/preventive actions.
Review and implement planned changes with proper validation, business impact assessment, and rollback planning.
Ensure service restoration checks and change completion records are properly maintained.
Operations Lead Responsibilities
Manage operational activities across network and network security domain.
Drive ticket review, escalation management, SLA compliance, and issue prioritization.
Provide technical guidance to L1/L2 engineers and support knowledge transfer.
Participate in service reviews and present incident trends, operational risks, and remediation updates.
Coordinate with customers, project teams, OEM support, and internal support towers.
Governance / Documentation / Continuous Improvement
Maintain and update:
SOPs
network diagrams
firewall rule/process documentation
escalation procedures
implementation guides
Ensure environment changes follow governance and security review processes.
Identify opportunities for network optimization, rule cleanup, process standardization, and service improvement.
Support audit/compliance and vulnerability/hardening initiatives relevant to network infrastructure and security estate.
Confidential-Third Party
Expected Deliverables / Ownership
Stable operation of enterprise network and firewall services
Faster resolution of complex incidents through end-to-end ownership
Accurate and compliant implementation of network and firewall changes
Improved service resilience and reduction in repeat issues
Better visibility on network/security operational risks and service health
Strong stakeholder confidence through effective communication and technical leadership
Required Technical Skills
Strong hands-on expertise in Cisco networking
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/hybrid network environments
Strong troubleshooting capability across network and security domains
Confidential-Third Party
Required Operational / Soft Skills
Strong ownership and incident leadership
Ability to independently manage L3-level tickets and escalations
Strong communication and cross-functional coordination skills
Good reporting/documentation capability
Strong decision-making and problem-solving ability
Preferred Skills
Exposure to cloud connectivity and security integration
Experience with monitoring tools and log analysis
Scripting/automation exposure
ITIL process knowledge
Vendor coordination experience
Pay: €7.000,00 per month
Work Location: In person
