Midland Steel is an innovative and progressive steel reinforcement manufacturer, supplier, and specialist contractor, with established operations in Ireland and the UK and a growing presence across Europe, the USA, and other international markets.

About the Role

We are seeking an experienced Network & Security Engineer to join our growing technical operations team. This is a hands-on position focused on the design, support, and optimisation of secure network and cloud infrastructure across multiple environments.

The successful candidate will bring strong expertise in network security, firewall administration, cloud networking, Microsoft technologies, and infrastructure operations, with the ability to take ownership of complex technical issues and infrastructure projects from inception through to completion.

This is an excellent opportunity for a technically driven professional who enjoys solving challenging problems, improving security posture, and supporting modern IT environments.

Key Responsibilities

Network & Security Operations

• Configure, administer, and troubleshoot SonicWall firewalls (TZ and NSa series).
• Design and maintain security policies, NAT rules, DPI-SSL, Content Filtering Services (CFS), and High Availability (HA) configurations.
• Implement and support Layer 2 and Layer 3 networking environments.
• Manage switching infrastructure, VLAN segmentation, trunking, inter-VLAN routing, and wireless networks.
• Deploy and maintain Site-to-Site IPsec VPNs and remote access VPN solutions.
• Support hybrid connectivity between on-premises environments and Azure/AWS.
• Perform advanced network diagnostics, packet analysis, bandwidth optimisation, and QoS management.

Cloud & Infrastructure Administration

• Manage Azure networking services including:
• Virtual Networks (VNets)
• Network Security Groups (NSGs)
• User Defined Routes (UDRs)
• VPN Gateways
• ExpressRoute
• Administer Microsoft 365 services including:
• Exchange Online
• SharePoint Online
• Microsoft Teams
• Entra ID (Azure AD)
• Implement Conditional Access policies and Multi-Factor Authentication (MFA).
• Support Windows Server environments (2016-2022), Active Directory, Group Policy, DNS, DHCP, and Hyper-V.
• Manage endpoint security and device administration through Intune and Microsoft Defender.

Automation & Project Delivery

• Develop and maintain PowerShell scripts to automate operational tasks, reporting, identity management, and auditing.
• Support backup and disaster recovery solutions, including Veeam or equivalent platforms.
• Lead network refreshes, infrastructure upgrades, and cloud migration projects.
• Produce clear technical documentation, network diagrams, and operational procedures.
• Serve as a senior escalation point for complex infrastructure and security incidents.