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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior IT Infrastructure & Server Engineer / 3rd Line 12mth FTC - **Company:** Arca - **Location:** UK - **Experience:** Expert - **Contract:** Temporary to permanent - **Skills:** Microsoft Windows, Active Directory, Microsoft Azure, Backup Devices, Cloud Computing, Configuration Management, Domain Name System (DNS), File Transfer, File Transfer Protocol (FTP) SSL Extension, Desktop Environments, Hyper-V, Virtual Private Networks (VPN), Microsoft SQL Server, System Center Configuration Manager, Windows Servers, Networking Basics, Citrix Systems, Software Deployment, File Transfer Protocol (FTP), Microsoft InTune, Information Technology, Vmware - **Published:** September 12, 2026 - **Apply:** https://itjobpro.co.uk/job/senior-it-infrastructure-server-engineer-3rd-line-12mth-ftc ## About the Role We're looking for someone who is technically strong, hands-on and comfortable operating at 3rd line level. You'll ideally have experience working within a sizeable corporate or enterprise IT environment and be confident troubleshooting across a broad Microsoft infrastructure estate. You should have strong experience with: * Microsoft Azure Local * Microsoft 365 * Windows Server and desktop environments * Microsoft Configuration Manager (MECM / ConfigMgr) * Microsoft Intune / Endpoint Management * Basic networking and infrastructure troubleshooting * Experience with SQL Server, Citrix, DNS, Always On VPN, Managed File Transfer (MFT), FTPS/SFTP and enterprise backup solutions would also be beneficial. You'll be a strong problem solver with a methodical approach to troubleshooting, good communication skills and the ability to take ownership of issues from initial investigation through to resolution. ## Description ARCA is proud to be working with a leading e-commerce company that is looking for a hands-on Senior IT Infrastructure and Server Engineer / 3rd Line Support Analyst to join its infrastructure team on an initial 10 - 12 month fixed-term contract, with the potential for the role to become permanent. This is a great opportunity for an experienced infrastructure or 3rd line support professional who enjoys being hands-on with technology, troubleshooting complex issues and getting involved in infrastructure projects and improvements. You'll be part of a team responsible for maintaining and evolving a large-scale Microsoft infrastructure environment, supporting both on-premises and cloud technologies. You'll act as a technical escalation point for complex issues, take ownership of major incidents and help deliver infrastructure changes and improvements. The Role As a Senior IT Infrastructure Analyst, you will: * Provide hands-on 3rd line infrastructure and technical support, working closely with the Service Desk and wider IT teams. * Act as a technical escalation point for complex infrastructure issues and troubleshoot problems through to resolution. * Take a technical lead during P1/P2 major incidents, coordinating activity across relevant resolver teams. * Support and maintain a hybrid Microsoft infrastructure environment, covering both cloud and on-premises technologies. * Work extensively with Microsoft Azure, Entra ID, Active Directory and Microsoft 365. * Manage and support the end-user computing environment using Microsoft Configuration Manager (MECM/ConfigMgr) and Intune. * Support Windows Server and desktop environments, including patching, upgrades, certificates and platform optimisation. * Work with virtualisation technologies including VMware and Hyper-V. * Support software deployment, provisioning and policy compliance through ConfigMgr and Intune. * Investigate recurring issues, carry out root cause analysis and implement preventative solutions. * Contribute to infrastructure projects, technical changes and service improvements from planning through to implementation and testing. * Maintain technical documentation and help establish infrastructure standards and best practice. * Participate in a 24/7 on-call rota for business-critical services. ## Related Videos - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [Devouring APIs with Python](https://www.wearedevelopers.com/videos/355-devouring-apis-with-python) - [Infrastructure as Prompts: Creating Azure Infrastructure with AI Agents](https://www.wearedevelopers.com/videos/1533-infrastructure-as-prompts-creating-azure-infrastructure-with-ai-agents) - [Generating code with Angular schematics](https://www.wearedevelopers.com/videos/129-generating-code-with-angular-schematics) - [Azure-Well Architected Framework - designing mission critical workloads in practice](https://www.wearedevelopers.com/videos/1529-azure-well-architected-framework-designing-mission-critical-workloads-in-practice) - [Brewing Tea over the Internet](https://www.wearedevelopers.com/videos/697-brewing-tea-over-the-internet) ## Related Articles - [IT Salaries in UK](https://www.wearedevelopers.com/magazine/288-it-salaries-in-uk) - [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) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)