IT Technician

Sumer is a leading professional services group supporting regional SMEs across the UK and Ireland. As we continue to scale, we are integrating high‑quality accountancy firms into a national organisation with strong local presence. We are seeking a proactive and skilled IT Support Technician (2nd Line) to support our DPC hub.

This role combines on‑site end‑user support with close collaboration across our central IT function, contributing directly to the reliability, security, and performance of our growing technology environment. You will play a key role in ensuring smooth day‑to‑day operations, delivering excellent user support, and maintaining robust local infrastructure. User & Desktop Support Deliver 2nd Line troubleshooting for laptops, desktops, peripherals, applications, and performance issues.

Act as an escalation point for complex or persistent technical incidents. Investigate and resolve escalated technical incidents, ensuring timely follow‑up and communication. Account, Access & Device Management Manage user lifecycle processes, including onboarding, leavers, access provisioning, and permissions updates.

Configure workstations, profile laptops, and ensure new starters receive an effective technical induction. Administer Microsoft Entra and Microsoft 365, including mailbox setup, distribution lists, and security groups. Systems Maintenance & Administration Support local infrastructure in coordination with central IT.

Perform routine system checks, patching validation, backup checks, and monitoring activities. Troubleshoot networking issues including connectivity, DNS/DHCP behaviors, VPN, VLANs, and wireless performance. Assist with escalations relating to Windows Server, storage, identity, and security components.

Maintain accurate documentation for systems, configurations, and support procedures. Security & Compliance Support technical activities related to vulnerability management and remediation. Work with tools such as Sentinel one, Qualys, Mimecast, and Microsoft 365 Security Portal.

Assist with triage and response to security alerts under the direction of central IT. Vendor & Escalation Management Coordinate with third‑party vendors and external partners to resolve technical issues or support local projects. Collaboration with Group IT Support initiatives relating to: Microsoft Windows 11 endpoint environments Microsoft 365 administration and apps Mimecast web filtering and email security Network maintenance and troubleshooting Vulnerability scanning and patching using Qualys Hardware configuration to organisational standards Essential Solid experience in a 2nd Line role within a multisite or professional services environment.

Strong troubleshooting capability across Windows, Microsoft 365, networking, and core infrastructure. Good understanding of identity and access management and Windows Server fundamentals. Confident working independently on complex tasks with clear communication and accountability.

Responsibilities

Desirable / Beneficial Networking knowledge (firewalls, switching, VLANs, routing basics). PowerShell scripting or automation experience. Exposure to Azure administration, conditional access, security policies.

Experience supporting server or cloud operational tasks. Understanding of backup, storage, and monitoring practices. At Sumer, we know everyone’s journey is different.

That’s why we’re committed to fairness, removing barriers and giving people the support they need to do their best work. If you need any support during the hiring process, just let us know. Our values represent what matters most to us and guide how we work every day: We Shine Together We Do the Right Thing We Make It Count We know diverse teams make us stronger.

That’s why we’re creating an inclusive workplace where everyone belongs and differences are valued and celebrated.