IT Infrastructure and Support Engineer

- Pre-Build configuration of IP-based CCTV, Access Control, Intruder and Intercom platforms prior to deployment - Configure network topology including VLAN segmentation, firewall rules, routing, NAT and VPN access - Implement secure remote access solutions and hardened configurations - Validate firmware, patch levels and cybersecurity posture prior to site deployment - Test system resilience, redundancy, failover and storage performance - Pre-stage cloud-connected security platforms and hybrid integrations - Produce configuration documentation, network diagrams and deployment packs - Evaluate and benchmark new hardware, VMS platforms and access control technologies - Provide Tier 3 technical escalation support to field engineers - Administer and optimise internal infrastructure (Windows Server, Active Directory, DNS, DHCP, Group Policy) - Manage Microsoft 365 tenant including SharePoint, Exchange Online, conditional access and security policies - Support hybrid identity (on-prem AD + Azure AD / Entra ID) - Maintain and optimise virtualised environments (VMware / Hyper-V) - Manage backup solutions, disaster recovery strategy and business continuity planning - Maintain core network infrastructure (Layer 2/3 switching, VLANs, trunking, firewall policy, VPN, SD-WAN where applicable) - Oversee endpoint provisioning, MDM policies, and lifecycle management - Implement cybersecurity best practices including MFA, least-privilege access, system hardening and vulnerability remediation - Lead internal IT improvement projects from design to deployment - Administer internal helpdesk and documentation systems - Provide 2nd and 3rd line technical support to engineers and key customers - Assist with website infrastructure and hosting environments - Manage and optimise company digital platforms and social channels