> Markdown version of [/jobs/ext/351471-3rd-line-it-engineer](https://www.wearedevelopers.com/jobs/ext/351471-3rd-line-it-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 IT Engineer - **Company:** MCS Group - **Location:** Ormskirk, UK - **Experience:** Expert - **Salary:** £45,000.0 - £55,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Backup Devices, Cloud Computing, Dynamic Host Configuration Protocol, Domain Name System (DNS), Microsoft Software, Windows Servers, Routing, Service Design, Firewalls (Computer Science), Information Technology, Cisco - **Published:** June 18, 2026 - **Apply:** https://uk.indeed.com/viewjob?jk=ddfa8a741f6b7d67 ## About the Role Do you have experience in Root cause analysis?, 5+ years in IT support roles. - Broad technical experience across Windows Server, Microsoft 365, networking (DNS, DHCP, routing), firewalls, cloud technologies, and backup solutions. - Experience with RMM and PSA tools. - Strong diagnostic, troubleshooting and decision-making skills. - Calm, structured approach to problem-solving with a high attention to detail. - Able to mentor others and contribute to the improvement of the overall service function. - Relevant industry certifications (e.g. Microsoft, Cisco, CompTIA) are desirable., * IT support: 5 years (required) ## Description As a Lead IT Engineer, you will serve as the final escalation point for technical issues across our client base. You'll work on the most complex incidents, assist in service design and delivery, deliver a wide range of IT projects, such as Microsoft 365 migrations, infrastructure upgrades, networking installations, and act as a technical reference point for the service desk. This role is ideal for a senior engineer with strong all-round knowledge, excellent troubleshooting ability, and a proactive mindset for continuous improvement., Act as the highest escalation point for technical incidents and service requests. - Troubleshoot and resolve complex issues across infrastructure, networks, cloud, servers, firewalls, and endpoint management. - Perform root cause analysis for recurring or critical issues and implement permanent fixes. - Handle advanced onboarding, migrations, and client infrastructure projects where required. - Support, guide and mentor all engineers on complex issues and personal development. - Lead on difficult or high-priority client cases, maintaining calm under pressure. - Assist with creating and maintaining internal knowledge base and documentation. - Liaise with vendors and suppliers for support escalations and service issues. - Communicate with clients clearly, particularly around complex technical issues, ensuring confidence and understanding. - Support the Account Management team with technical insight when reviewing client environments. - Deliver technical tasks within client projects including configuration, migration, implementation, and testing. - Work on Microsoft 365, networking, server and endpoint projects. ## Related Videos - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Hate organising your photos? Try it with 5 Terabytes](https://www.wearedevelopers.com/videos/79-hate-organising-your-photos-try-it-with-5-terabytes) - [Creating a routing app with Google Maps API from scratch](https://www.wearedevelopers.com/videos/831-creating-a-routing-app-with-google-maps-api-from-scratch) - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Checkmate: 5 Real Incidents That Can End a Software Company](https://www.wearedevelopers.com/videos/100126-checkmate-5-real-incidents-that-can-end-a-software-company) - [A Technical Introduction to Bitcoin's 2nd Layer- The Lightning Network](https://www.wearedevelopers.com/videos/15-a-technical-introduction-to-bitcoin-s-2nd-layer-the-lightning-network) ## Related Articles - [IT Salaries in UK](https://www.wearedevelopers.com/magazine/288-it-salaries-in-uk) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Data Analyst Salary in the UK](https://www.wearedevelopers.com/magazine/278-data-analyst-salary-in-the-uk) - [Software Engineer Salary in The UK](https://www.wearedevelopers.com/magazine/231-software-engineer-salary-in-the-uk)