Senior 3rd Line Support Engineer

(Infrastructure & Networking)

Central London | Up to £52k | Hybrid

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.