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# IT 2nd/3rd Line Support Engineer

- **Company:** Bleckfield Ltd
- **Location:** Leatherhead, UK
- **Experience:** Experienced
- **Salary:** £34,000.0 - £55,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Active Directory, Microsoft Azure, Dynamic Host Configuration Protocol, Domain Name System (DNS), Virtual Private Networks (VPN), Windows Servers, Network Architecture, Networking Basics, Routing, Windows PowerShell, Cloud Services, Microsoft SharePoint, TCP/IP, Virtual Local Area Networks, Virtual Machines, EndPointSecurity, Wi-Fi Technology, Scripting, Computer Networking Systems, Microsoft InTune, 3-tier Architectures, Firewall Services Module
- **Published:** October 1, 2026
- **Apply:** https://www.totaljobs.com/job/it-2nd-3rd-line-support-engineer/bleckfield-ltd-job108061892

## About the Role

Essential Experience

*Minimum 3 years in a 2nd or 3rd line MSP environment

*Strong Microsoft 365 administration - Exchange Online, Intune, Entra ID, Conditional Access, Teams, SharePoint, Defender

*Windows Server administration - AD DS, DNS, DHCP, Group Policy, File Services

*Networking fundamentals - TCP/IP, VLANs, routing, VPN, firewall configuration

*Experience leading or owning technical projects (not just contributing to them)

*Comfortable working with RMM tools

*Strong documentation discipline - you leave things better than you found them

Desirable

*Microsoft certifications - AZ-104, MS-102, SC-300, or equivalent

*Experience with PSA platforms

*PowerShell scripting for automation and administration tasks

*Exposure to Cyber Essentials

*Experience with Unifi network infrastructure

## Description

We're looking for an experienced 2nd/3rd Line Support Engineer to join our team in Leatherhead. This is a hands-on technical role covering complex escalations from our Tier 1 desk, alongside ownership of infrastructure projects and migrations for our client base.

You'll be working directly with the Service Desk Manager and Operations Manager on Tier 3 escalations and leading technical delivery on project work. You'll own problems end-to-end and have genuine scope to shape how we deliver infrastructure and cloud services to our clients.

Day-to-Day Responsibilities

*Handle escalated Tier 2 and Tier 3 tickets from the helpdesk, owning resolution end-to-end

*Manage and maintain Microsoft 365 tenants including Exchange Online, SharePoint, Teams, Intune, and Entra ID

*Support and administer Azure infrastructure - virtual machines, Entra ID, Conditional Access, Defender for Endpoint

*Assist in delivering migration and upgrade projects (e.g. Windows 11 rollouts, server replacements, tenant-to-tenant migrations)

*Configure and troubleshoot Windows Server environments, Active Directory, Group Policy, and DNS/DHCP

*Support networking infrastructure including VLANs, VPNs, Wi-Fi,

*Maintain and develop our RMM platform - alerting, scripting, automation, patching

*Contribute to documentation in our knowledge base and produce client-facing runbooks

*Participate in onboarding new clients, including remote site surveys and infrastructure assessments

*Provide guidance and mentoring to Tier 1 staff on technical issues


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