Ergo IT Recruitment is seeking a Network Security Engineer for a long-term contract opportunity with our public sector client in Dublin. The successful candidate will harden/standardise/modernise an enterprise-level network (WAN/LAN/WLAN, perimeter, remote access) while improving resilience and supporting digital strategy and cloud‑native progression.You should have experience in next-gen Firewall administration, network segmentation and vulnerability assessments.What will you do?Current Network Assessment: Topology diagrams, IP/VLAN schema, device inventory, and configuration baseline with risk-ranked findings.Risk & Gap Analysis: Network-centric security risks and gaps vs best practice; prioritised remediation items.Firewall, switching, WLAN, NAC configuration standards; naming/IPAM standards; change-control templates.Remediation Plan: Sequenced plan with timelines, dependencies, and required maintenance windows.Playbooks & RunbooksMonitoring & Logging PlanWeekly Status Reports: Progress, risks/issues, metrics, and next steps.Cloud Readiness Assessment: Inventory of infrastructure, dependencies, compliance, risks, and workload readiness scoring.Digital strategy enablementYou should have experience in the following:Core Network Design & Operations (WAN / LAN / WLAN)Perimeter & Edge Security (Firewalls, VPN, DDoS)Secure Architecture & Network SegmentationConfiguration Management & System HardeningMonitoring, Telemetry & Incident Response (SOC/SIEM & Threat Intel)Vulnerability, Patch & Platform Lifecycle ManagementResilience, Backup & Disaster Recovery ReadinessCloud Foundations & Hybrid Connectivity (Azure)Apply today for more info