> Markdown version of [/jobs/ext/2263896-3rd-line-support-engineer](https://www.wearedevelopers.com/jobs/ext/2263896-3rd-line-support-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # 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:** August 27, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5856707073 ## 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 ## Related Videos - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [Coffee with Developers: David Heinemeier Hansson](https://www.wearedevelopers.com/videos/875-coffee-with-developers-david-heinemeier-hansson) - [Generating code with Angular schematics](https://www.wearedevelopers.com/videos/129-generating-code-with-angular-schematics) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) ## Related Articles - [IT Salaries in UK](https://www.wearedevelopers.com/magazine/288-it-salaries-in-uk) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [Best Companies to work for in London: Top 25 Companies in 2023](https://www.wearedevelopers.com/magazine/187-best-companies-to-work-for-in-london-top-25-companies-in-2023) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk)