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# Senior IT Infrastructure & Systems Engineer

- **Company:** MCS Group
- **Location:** Toome, UK
- **Experience:** Expert
- **Salary:** £45,000.0 - £55,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Artificial Intelligence, Systems Engineering, Microsoft Online Services, System Configuration, Domain Name System (DNS), Networking Hardware, Virtual Private Networks (VPN), Windows PowerShell, Wi-Fi Technology, Computer Network Technologies, Microsoft Power Automate, Firewalls (Computer Science), Microsoft InTune, Information Technology, Integration Frameworks, Restful APIs
- **Published:** August 23, 2026
- **Apply:** https://www.nijobfinder.co.uk/job/2050838/senior-it-infrastructure-and-systems-engineer/

## About the Role

* Strong hands-on experience across Microsoft infrastructure
 * Microsoft 365 administration
 * Intune and endpoint/device-management experience
 * Entra ID or Active Directory administration
 * Practical networking knowledge covering Wi-Fi, switches, VPNs and firewalls
 * Experience personally configuring and resolving technical issues
 * Strong troubleshooting skills across infrastructure, devices and connectivity
 * Experience delivering infrastructure projects or technology rollouts
 * Confidence working with external suppliers and managed service providers
 * The ability to investigate requirements and recommend practical solutions
 * A proactive, security-conscious and ownership-driven approach
 * Availability to work from the Toomebridge office
 * Flexibility for occasional European travel

Desirable Experience

Any experience with the following would be beneficial but is not essential:

 * Ubiquiti or UniFi
 * Starlink or remote-site connectivity
 * PowerShell
 * Microsoft Graph
 * REST APIs and third-party integrations
 * Power Automate
 * Infrastructure or business-process automation
 * AI tools
 * CCTV or access-control connectivity
 * Domains, DNS and hosting administration
 * Microsoft tenant migrations

The successful person is not expected to be an expert in every technology listed. The priority is a strong Microsoft and infrastructure foundation, combined with curiosity, initiative and the confidence to take practical ownership.

## Description

Your responsibilities will include:

 * Administering Microsoft 365, Intune, Entra ID, Exchange, Teams and SharePoint
 * Enrolling, configuring, securing and supporting laptops, tablets and mobile devices
 * Managing device policies, application deployment, updates and endpoint compliance
 * Supporting networking, Wi-Fi, switches, firewalls, VPNs and site connectivity
 * Troubleshooting infrastructure, hardware, software and connectivity issues
 * Managing hardware procurement, licensing, suppliers and device lifecycles
 * Maintaining accurate technical documentation, procedures and asset information
 * Working with the existing MSP while gradually developing internal ownership
 * Identifying security risks, operational inefficiencies and opportunities for improvement
 * Supporting users across office and project-site environments
 * Helping establish the technology infrastructure for new European project sites

Occasional travel may be required when a new site is being established. This could involve supporting connectivity, network equipment, Wi-Fi, workstations, printers and other site technology.


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