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BaryTech

Operations Manager- Senior Network Security

BaryTech
Belgium · Full-time · Mid-Senior

Job Summary

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.

Key ResponsibilitiesNetwork Operations (Cisco)
  • 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
Network Security Operations (Palo Alto)
  • 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
Incident, Change & Problem Management
  • 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
Operations & Governance
  • 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
Required Qualifications
  • 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


Key Skills

Ranked by relevance

firewall palo alto network security switches routers cloud ospf vpn sla nat
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Posted
Jul 10, 2026
Type
Full-time
Level
Mid-Senior
Location
Mechelen
Company
BaryTech

Industries

IT Services IT Consulting

Categories

Management Manufacturing

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