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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Operations Manager - OT Infrastructure / Senior Network & Security Engineer - **Company:** BaryTech - **Location:** Antwerpen, Belgium - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Border Gateway Protocol, Cisco Routers, Cloud Computing Security, Computer Networks, Network Congestion, Data Centers, Network Address Translation, Trunking, Data-Flow Analysis, Monitoring of Systems, Hot Standby Router Protocol, Virtual Private Networks (VPN), Internet Service Provider, Network Security, Network Diagrams, Network Monitoring, Routing, Network Segmentation, Open Shortest Path First (OSPF), Security Log, Systems Integration, Virtual Local Area Networks, Virtual Router Redundancy Protocols, Software Vulnerability Management, Wide Area Networks, Scripting, Computer Networking Systems, Computer Network Operations, Firewalls (Computer Science), Low Latency, Routing & Switching, Firewall Services Module, Cisco - **Published:** June 4, 2026 - **Apply:** https://be.indeed.com/viewjob?jk=4616c2ea5476f444 ## About the Role Do you have experience in VPN?, * 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. Preferred Skills * 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 ## Description 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 Responsibilities Network 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 ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Creating a routing app with Google Maps API from scratch](https://www.wearedevelopers.com/videos/831-creating-a-routing-app-with-google-maps-api-from-scratch) - [Trunk-Based Development at Scale: Real-World Insights from a High-Traffic Luxury E-Commerce Platform](https://www.wearedevelopers.com/videos/1435-trunk-based-development-at-scale-real-world-insights-from-a-high-traffic-luxury-e-commerce-platform) - [Enabling automated 1-click customer deployments with built-in quality and security](https://www.wearedevelopers.com/videos/83-enabling-automated-1-click-customer-deployments-with-built-in-quality-and-security) - [Your Infrastructure Is Not a Playground: AI Agents for Infra Done Right](https://www.wearedevelopers.com/videos/2084-your-infrastructure-is-not-a-playground-ai-agents-for-infra-done-right) ## Related Articles - [Best Companies in the Netherlands: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/193-best-companies-in-the-netherlands-top-25-companies-in-2023) - [How to land a developer job in Amsterdam](https://www.wearedevelopers.com/magazine/36-how-to-land-a-developer-job-in-amsterdam) - [How to Find Tech Jobs in Amsterdam](https://www.wearedevelopers.com/magazine/279-how-to-find-tech-jobs-in-amsterdam) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Software Developer Salary in The Netherlands [2023]](https://www.wearedevelopers.com/magazine/217-software-developer-salary-in-the-netherlands-2023) - [The Best Tech Hubs in Europe: 5 Best Cities For Software Engineers](https://www.wearedevelopers.com/magazine/246-the-best-tech-hubs-in-europe-5-best-cities-for-software-engineers)