Salary: £50,000 - 54,000 per year Requirements: Proven experience in a senior 3rd line or infrastructure support role Strong knowledge of Windows, Linux/Unix, Microsoft 365, and Active Directory Experience with cloud platforms (IaaS, PaaS, SaaS), networking, and firewalls ITIL experience (incident, problem, and change management) Strong troubleshooting and communication skills Responsibilities: Act as 3rd line escalation for complex incidents and problems Support and maintain infrastructure across servers, networks, cloud, and virtual platforms Provide technical guidance to 1st and 2nd line teams Ensure systems are secure, resilient, and compliant (NIST, Cyber Essentials) Support infrastructure projects and work with third-party suppliers Technologies: Active Directory Cloud IaaS Support ITIL Linux Microsoft 365 PaaS Security Unix Windows Office 365 More: We are seeking an experienced 3rd Line Support Engineer to support and enhance the IT infrastructure of our Birmingham-based organization. This senior, hands-on role focuses on resolving complex technical issues and serves as the highest point of escalation. We offer a competitive salary ranging from £50,000 to £54,000 along with excellent benefits. Join our dynamic team in Birmingham and help us ensure the reliability and security of our IT systems. last updated 5 week of 2026