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# 3rd Line Support Engineer

- **Company:** Spectrum IT Recruitment
- **Location:** Redhill, UK
- **Experience:** Expert
- **Salary:** £47,000.0 - £52,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Cloud Computing, Dynamic Host Configuration Protocol, Hyper-V, Virtual Private Networks (VPN), Microsoft Office, Windows Servers, Citrix Systems, Remote Desktop Services, Ruby, TCP/IP, Wide Area Networks, Firewalls (Computer Science), Vmware
- **Published:** October 10, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5918817678

## About the Role

* Strong experience supporting Microsoft and infrastructure environments
 * Ability to troubleshoot problems that cross multiple systems or suppliers
 * Experience working within an MSP, managed cloud services provider, or similarly multi-customer support environment
 * Experience operating at 3rd line or senior technical support level is preferred
 * Ability to take ownership of complex technical issues
 * Ability to troubleshoot logically when the answer is not immediately obvious
 * Ability to communicate technical information clearly to customers
 * Ability to stay organised when dealing with competing priorities
 * Ability to remain calm during outages and business-critical incidents
 * Ability to recognise when to escalate and provide useful technical evidence
 * Ability to share knowledge and help less experienced engineers develop

## Description

* Take ownership of technically challenging issues escalated from 1st and 2nd line, investigating them through to resolution or a clear escalation path
 * Troubleshoot across Windows Server, Active Directory, Group Policy, DNS and DHCP
 * Troubleshoot across Microsoft 365, including Entra ID, Exchange Online, Teams and Conditional Access
 * Troubleshoot across Hyper-V and VMware environments
 * Troubleshoot across Citrix and Microsoft Remote Desktop Services
 * Troubleshoot across networking, VPNs, firewalls, WAN connectivity and TCP/IP
 * Troubleshoot across backup, recovery and business continuity
 * Troubleshoot across cloud infrastructure and security
 * Support planned maintenance, patching, configuration changes, infrastructure improvements, customer migrations and onboarding projects
 * Keep tickets moving and communicate clearly with customers and colleagues
 * Recognise when an issue needs escalating and make sure recurring problems are properly fixed
 * Support 1st and 2nd line engineers through technical guidance, knowledge sharing and useful documentation

Technologies:

 * Active Directory
 * Citrix
 * Cloud
 * Hyper-V
 * Support
 * LESS
 * Microsoft 365
 * Security
 * TCP/IP
 * VMware
 * Windows
 * Office 365
 * Ruby