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

Technologies:

• Active Directory
• Azure
• Cloud
• Firewall
• Firmware
• Hardware
• Hyper-V
• Support
• Microsoft 365
• NAT
• Network
• PowerShell
• Security
• SharePoint
• TCP/IP
• VPN
• VMware
• Windows
• Office 365, We are seeking a technically advanced IT Infrastructure & Support Engineer to take ownership of the configuration, validation, and optimisation of integrated IP-based security systems prior to deployment. Our team is dedicated to ensuring that security systems are secure, scalable, and deployment-ready. We offer a competitive salary of £42,000 to £48,000 per year, along with benefits such as a company pension, cycle to work scheme, and on-site parking. This role provides genuine technical ownership of pre-deployment security builds and an opportunity to influence infrastructure standards and cybersecurity posture, while working closely with emerging IP security and hybrid cloud technologies.

• Strong understanding of TCP/IP networking, routing, switching and VLAN segmentation
• Experience configuring firewalls and secure remote access (VPN, port forwarding, NAT policies)
• Advanced Windows administration experience
• Experience managing Microsoft 365 / hybrid environments
• Good knowledge of VOIP telephony systems
• Virtualisation experience (VMware or Hyper-V)
• Strong troubleshooting methodology across network, system and application layers
• Understanding of cybersecurity principles and secure system design
• Experience with Enterprise level IP-based CCTV, Access Control & Intercom Systems (highly desirable)
• Knowledge of ONVIF, SIP, RTSP and related protocols (highly desirable)
• Experience with PowerShell scripting and task automation (highly desirable)
• Familiarity with backup & disaster recovery solutions (highly desirable)
• Experience within the electronic security integration sector (highly desirable)
• Analytical and methodical in approach
• Strong documentation discipline
• Comfortable working at both architectural and hands-on levels
• Proactive and solutions-driven
• Able to manage multiple technical streams simultaneously