> Markdown version of [/jobs/ext/4018962-3rd-line-engineer](https://www.wearedevelopers.com/jobs/ext/4018962-3rd-line-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 Engineer - **Company:** Nextech - **Location:** Reigate, UK (Remote available) - **Experience:** Expert - **Salary:** £50,000.0 - £55,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Microsoft Azure, Backup Devices, Hyper-V, Virtual Private Networks (VPN), Network Security, Windows Servers, Firewalls (Computer Science), Vmware - **Published:** October 30, 2026 - **Apply:** https://jobsthamesvalley.co.uk/jobs/apply/ats-redirect/?id=3041846380-2 ## About the Role 5+ years' IT support experience, ideally within an MSP Strong Microsoft 365 and Azure administration experience Excellent networking and security troubleshooting skills Strong Windows Server, VMware and/or Hyper-V knowledge Experience supporting SME customers Confident communicating with senior stakeholders and C-suite contacts Microsoft, CompTIA or ITIL certifications would be advantageous Full UK driving licence required ## Description This is a senior technical position acting as a key escalation point for complex infrastructure, cloud, networking and security issues, while supporting and mentoring less experienced engineers. The role Act as the highest technical escalation point for complex support incidents Administer and troubleshoot Microsoft 365, Azure, Entra ID and Windows Server Support networking, firewalls, VPNs and security solutions Carry out root cause analysis and implement permanent technical fixes Support VMware, Hyper-V and backup environments Work directly with customers to resolve business-critical technical issues Mentor and provide technical guidance to 1st and 2nd Line Engineers Recommend improvements to customers' IT environments Work alongside Account Management and Professional Services on solution design and delivery