Salary: £48,000 - 60,000 per year Requirements: We are looking for an experienced Senior 3rd Line IT Support Engineer with at least 3 years in an MSP environment. We need someone with experience managing critical incidents and providing customer-focused technical leadership. We are looking for candidates with strong experience in Microsoft and identity technologies, including Windows Server 2012–2022, Active Directory, Entra ID (Azure AD), Group Policy, and Microsoft 365 (Exchange Online, Teams, SharePoint, OneDrive). We need experience with infrastructure and cloud platforms such as VMware and/or Hyper-V and Microsoft Azure (IaaS and Identity). We are looking for solid networking knowledge, including TCP/IP, DNS, DHCP, VLANs, VPNs, firewall troubleshooting, and traffic analysis. We need familiarity with security topics such as MFA, Conditional Access, endpoint protection, and basic security incident containment. We are looking for experience with RMM and PSA tools such as Autotask, ConnectWise, or similar, as well as monitoring and alerting systems. We prefer candidates with experience working with international customers. We need professionals who remain calm under pressure, take ownership, communicate clearly, manage demanding customers, and make decisions with incomplete information. We are looking for people who can lead without direct authority, work effectively across international teams, and be open to occasional international travel. Responsibilities: We lead technical response for Priority 1 incidents and provide structure in critical situations. We coordinate internal teams and third-party vendors during major incidents and escalations. We communicate clearly with customers, leadership, technical stakeholders, and non-technical stakeholders. We manage incident resolution, post-incident reviews, and root cause analysis. We act as the final escalation point for complex multi-client incidents and implement permanent fixes. We prevent recurrence through corrective actions and continuous improvement. We participate in service reviews and escalation calls, handling sensitive situations professionally. We build trust with high-demand customers and support key customers onsite when required. We diagnose complex infrastructure, cloud, networking, and identity issues. We mentor Level 1 and Level 2 engineers and raise the technical level of the team. We improve technical standards, documentation, and operational processes. We support migrations, onboarding, critical changes, and high-impact cutovers. We review technical designs, identify risks, and provide onsite technical leadership during key deployments when required. We travel to support customers and mentor teams internationally when needed. Technologies: Active Directory Azure Cloud Firewall Hyper-V IaaS Support Microsoft 365 Security SharePoint TCP/IP VMware Windows Office 365 More: We are a well-established and growing IT provider offering a Senior 3rd Line IT Support Engineer role within a dynamic MSP supporting critical business environments and demanding customers. This is a hybrid position with travel to our Barnsley office two to three times per week, plus customer-related travel. The role offers a salary of £48k–£65k DOE, full expenses/travel, bonus, and benefits, along with strong career progression, a supportive experienced team, and optional travel opportunities to Australia, South Africa, Spain, and other international locations. We operate across three continents, work collaboratively with engineers and customers globally, and offer the chance to mentor teams internationally, support key customers onsite, and grow your career with long-term loyal clients. last updated 24 week of 2026