Cork OR Dublin Location - Hybrid 2 Days Onsite, 3 Days Remote I'm currently partnering with a leading Irish organisation to hire a Network Security Lead.
This is a key technical role responsible for strengthening perimeter, edge, and internal segmentation controls across complex on-prem, cloud, and OT environments.
As the Network Security Lead, you'll take ownership of firewall architecture, engineering, and operations — ensuring high availability, secure remote access, effective segmentation, and strong integration with detection/response processes.
You'll also provide day-to-day guidance to junior analysts and play a critical role in enabling secure change at pace.
Key Responsibilities: • Design and maintain enterprise network security architecture aligned to Zero Trust • Lead firewall rule governance, policy lifecycle, and secure change management • Manage next-gen firewalls (Palo Alto / Check Point), proxies, IDPS, PKI and VPNs • Troubleshoot complex network flows and ensure reliable high-availability designs • Support cloud and hybrid connectivity (Azure Firewall, vNGFW, NSGs/ASGs) • Coordinate vulnerability scanning, patching, audits, and penetration testing • Contribute to incident response with rapid containment actions • Mentor junior analysts and collaborate with IT, cloud, and OT teams Skills