3rd line engineer MSP - Oscar Technology : Job Details

Job Title: 3rd Line Support Engineer (MSP)Location: Central London (On-site, Monday-Friday)Salary: £35,000 - £40,000 per annumJob Type: Full-time, Permanent

We're seeking an experienced and highly capable 3rd Line Support Engineer to join a fast-paced Managed Service Provider (MSP) team in Central London. This is a full-time, on-site role, perfect for someone who thrives in a client-facing environment and enjoys working across diverse systems, networks, and applications.

You'll serve as the technical escalation point for 1st and 2nd line teams, taking ownership of advanced troubleshooting, infrastructure management, and project delivery across a variety of SME and enterprise clients.

• Act as the senior technical escalation point for complex support issues across client environments.

• Administer, maintain, and troubleshoot Windows Server environments, networks, and cloud platforms.

• Manage Active Directory, Group Policy, DNS/DHCP, and M365 (Exchange, SharePoint, Teams, Intune).

• Perform server migrations, cloud integrations, and infrastructure upgrades.

• Support and manage virtualization technologies (VMware/Hyper-V).

• Oversee networking systems: firewalls, routers, switches, VPNs.

• Assist with backup and disaster recovery solutions.

• Work closely with clients to understand their needs and deliver best-in-class support.

• Document all configurations, changes, and solutions in the ticketing system and internal knowledge base.

• Proven experience in a 2nd/3rd line support role within an MSP or multi-client environment.

• Strong technical expertise in:

  • Windows Server 2016-2022

  • Microsoft 365 administration

  • Active Directory, Group Policy, DNS/DHCP

  • Azure administration and migration experience

  • VMware or Hyper-V environments

  • Networking (firewalls, VLANs, routing, switching, VPNs)

• Excellent troubleshooting, communication, and documentation skills.

• Ability to work independently and manage priorities in a high-pressure setting.

• Salary: £35,000 - £40,000 DOE

• On-site, Monday-Friday in Central London (no remote/hybrid)

• 25 days annual leave + bank holidays

• Pension contribution

• Certification support and training budget

• Friendly, skilled team with opportunities for progression

• Access to a wide variety of technologies and industry sectors

Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy.

To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.