Senior 3rd Line Engineer
3rd Line IT Support Engineer Central London Up to £55,000
We're looking for an experienced 3rd Line IT Support Engineer to take a leading role within a growing technical team. This position is ideal for someone with a strong background in infrastructure management, 3rd-line support, and project delivery.
You'll be responsible for managing complex client environments, implementing robust IT solutions, and providing technical leadership to junior engineers. This is a hands-on, senior-level role where you'll combine troubleshooting expertise with project ownership and client engagement.
Key Responsibilities
-
Provide advanced 3rd-line support across servers, networks, cloud services, and security.
-
Design, deploy, and manage infrastructure projects including virtualisation, Azure, and server migrations.
-
Act as a technical lead for escalations and guide engineers through complex issues.
-
Collaborate directly with clients to deliver reliable and efficient IT solutions.
-
Lead on security initiatives, firewalls, endpoint protection, and data compliance.
-
Maintain detailed system documentation and performance reports.
-
Mentor and support junior engineers to promote best practice and technical growth.
-
Strong experience managing Windows Server, Active Directory, DNS, DHCP, and Group Policy.
-
Expertise in virtualisation technologies (Hyper-V / VMware).
-
Hands-on experience with Microsoft Azure (Azure AD, VMs, Storage).
-
Skilled in backup and DR solutions (Veeam, Acronis, Cove).
-
Solid understanding of networking, VLANs, VPNs, and firewalls (Fortinet, Juniper, WatchGuard, Palo Alto).
-
Familiarity with storage platforms (Dell PowerVault, Synology) and endpoint protection (Microsoft Defender, Sophos).
-
Proven experience delivering infrastructure projects from design to completion.
- Competitive salary and benefits package
- Opportunity to lead major client infrastructure projects
- Exposure to cutting-edge technologies across multiple industries
- Supportive environment with career progression and training opportunities
If this role is role sounds of interest Apply Now! Alternatively email
- Company
- Allegiance Technology
- Location
- London, South East, England, United Kingdom
- Employment Type
- Full-Time
- Salary
- £45,000 - £55,000 per annum
- Posted
- Company
- Allegiance Technology
- Location
- London, South East, England, United Kingdom
- Employment Type
- Full-Time
- Salary
- £45,000 - £55,000 per annum
- Posted