SER Limited
3rd Line IT Support Engineer
Job Description
Salary: £50,000 - 55,000 per year
Requirements:- Strong hands-on experience with Windows Server, Active Directory, DNS, DHCP, GPOs, and WDS
- Proficiency in Hyper-V and VMware virtualisation
- Expertise in Microsoft Azure, including Azure AD, Virtual Machines, and Storage
- Experience with backup and disaster recovery solutions such as Veeam, Cove, and Acronis
- Solid understanding of networking, including VLANs, subnetting, TCP/IP, LAGs, and VPNs
- Hands-on experience with firewalls such as Fortinet, Juniper, WatchGuard, and/or Palo Alto
- Familiarity with storage solutions like Dell PowerVault and Synology
- Experience with endpoint protection platforms including Microsoft Defender and Sophos
- Proven track record of delivering infrastructure projects, including server migrations, cloud deployments, and network upgrades
- Background as a 3rd Line IT Support Engineer or Senior Infrastructure Engineer within an MSP environment
- Provide 3rd line support and expert troubleshooting across server environments, virtualisation, networking, cloud, and security
- Act as a senior escalation point for complex technical issues for the engineering team
- Manage and deliver infrastructure projects, including server migrations, virtualisation deployments, Azure solutions, and network upgrades
- Work directly with clients to understand technical requirements and provide appropriate solutions
- Support and mentor junior engineers, sharing technical knowledge and best practice
- Design and implement security solutions, including firewalls, endpoint protection, and cloud security
- Maintain accurate technical documentation covering system configurations, solutions, and troubleshooting
- Provide clients with technical recommendations and performance reports
- Active Directory
- Azure
- Cloud
- Hyper-V
- Support
- Network
- Security
- TCP/IP
- VMware
- Veeam
- Windows
More:
We are a fast-paced Managed Service Provider based in London, supporting a wide range of businesses. Due to continued growth, we are looking for an experienced 3rd Line IT Support Engineer to join our technical team in a senior position focused on resolving complex infrastructure issues and delivering high-quality IT solutions. We offer a salary of up to £55,000 for a 40-hour working week with flexible hybrid working options, including work-from-home Fridays. Our benefits package includes 22 days of annual leave (increasing to 25 with tenure), quarterly and annual staff awards, funded social events, employee referral bonuses, and ongoing professional development and training opportunities.
last updated 35 week of 2026
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About SER Limited
SER Limited
London
IT
Skills & Technologies
Inferred from job description
Salary Insight
£52,500
This role
£60,000
UK median
This salary is 12% below the UK median for Software Engineers (£60,000/yr).
Based on 2024–2025 UK technology sector benchmarks