Senior 3rd Line Support Engineer

Senior 3rd Line Support Engineer

(Infrastructure & Networking)

Central London | Up to £52k | Hybrid

If you would like to know a bit more about this opportunity, or are considering applying, then please read the following job information.

Are you an experienced Third Line Support Engineer looking to take on more complex infrastructure and networking challenges?

We're working with a leading Managed Service Provider (MSP) based in Central London, supporting hundreds of businesses across the creative and engineering sectors. This is your chance to take ownership of high-impact projects, shape infrastructure strategy, and act as the technical escalation point for a talented engineering team.

Key Responsibilities

• Escalate and resolve complex 3rd-line issues across infrastructure, networking, and cloud.
• Design, configure, and manage Windows Server and virtualization (Hyper-V/VMware).
• Oversee networks: DNS, DHCP, VLANs, VPNs, routing, and firewalls.
• Implement and maintain enterprise backup and disaster recovery solutions.
• Lead projects: migrations, upgrades, and hybrid deployments.
• Manage Microsoft 365, Azure, and hybrid cloud services.
• Mentor junior engineers to build skills and expertise.

Requirements

• 4–6+ years in MSP or fast-paced IT environment.
• Strong Windows Server, Active Directory, Group Policy, and PowerShell skills.
• Proven networking experience: VLANs, VPNs, routing, firewalls (Cisco, Sophos, Fortinet).
• Veeam Backup & Replication expertise; disaster recovery knowledge.
• Experience with Intune, MDT, Lucidlink, Egnyte, Azure, AWS.
• Excellent troubleshooting, communication, and client engagement skills.

What's in It for You

• Salary: £52,000
• Hybrid working: 2–3 days per week from home
• Career development: Tailored professional development with opportunities to progress into lead roles
• Collaborative culture: Work within a technically strong, close-knit team that values expertise, innovation, and continuous improvement.
• Perks: Funded social events, referral bonuses, and ongoing recognition through quarterly awards.

If you're a hands-on IT Support and Infrastructure specialist with a passion for networking, problem-solving, and delivering excellence in a high-performance MSP environment — this role offers the scope and responsibility you've been looking for.