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Job Title: Senior 3rd Line Engineer
Location: Oxford-based (Remote then possibly to hybrid)
Salary: £35-43k per annum (DOE)
Industry: Managed Services Provider

About Us

We are a fast-growing, client-focused Managed Service Provider (MSP) based in Oxford, supporting a wide range of businesses across the UK. We pride ourselves on our technical excellence, exceptional customer service, and strong team culture. As we expand our high-level support operations, we are looking for a skilled and experienced Senior 3rd Line Engineer to join our team remotely.

Role Overview

As a Senior 3rd Line Engineer, you will act as the technical escalation point for complex IT issues, major incidents, and high-priority projects. You will play a key role in maintaining and improving client infrastructure, mentoring junior staff, and liaising directly with clients to provide strategic and technical guidance.

Key Responsibilities

Provide advanced technical support across Windows Server, Microsoft 365, Azure, networking, and security.
Act as final escalation for 2nd and 3rd line issues from the Service Desk.
Lead infrastructure projects including migrations, upgrades, and cloud transformations.
Troubleshoot complex issues across servers, storage, firewalls, and virtualized environments.
Maintain high availability and disaster recovery solutions (e.g., Veeam, Azure Site Recovery).
Document solutions, create technical documentation, and contribute to the internal knowledge base.
Participate in technical design, planning, and architecture discussions.
Provide technical pre-sales support and input into solution designs.
Ensure SLAs and KPIs are consistently met or exceeded.
Mentor junior engineers and act as a subject matter expert within the team.
Participate in an on-call rota (if applicable).

Essential Skills & Experience

Minimum 5 years in a 3rd Line or senior technical support role within an MSP environment.
Strong expertise in:
Windows Server (2016/2019/2022)
Microsoft 365 (Exchange Online, Teams, SharePoint)
Azure IaaS, AAD, and hybrid setups
Hyper-V and/or VMware virtualization
Advanced networking (Firewalls, VLANs, VPNs, Routing)
Proven experience with scripting (PowerShell) and automation.
In-depth understanding of ITIL principles and service delivery in an MSP context.
Excellent troubleshooting and diagnostic skills across a broad range of technologies.
Ability to communicate complex technical concepts to non-technical stakeholders.

Desirable Qualifications

Microsoft certifications (e.g., MS-100, AZ-104, AZ-305)
VMware VCP or Hyper-V certifications
Cisco (CCNA or higher)
ITIL Foundation
Security certifications (e.g., CompTIA Security+, MS SC-900, CISSP)In Technology Group Ltd is acting as an Employment Agency in relation to this vacancy