Senior IT Infrastructure & Support Engineer
Horsham
£45,000 – £47,500 + Benefits

Are you a hands-on Infrastructure Engineer who enjoys solving complex problems, owning systems end-to-end, and being the go-to technical expert for your team? This Senior IT Infrastructure & Support Engineer role offers the chance to work across on-prem and cloud environments, support business-critical systems (including ERP), and play a key part in strengthening a growing IT function.

The role

As Senior IT Infrastructure & Support Engineer, you will take ownership of core infrastructure services, ensure the reliability and security of the IT estate, and provide high-level support to users across the business.

You’ll work closely with the wider IT team on improvements and projects, while also acting as a technical mentor for junior colleagues.

Key responsibilities include:

- Providing advanced technical support for infrastructure, applications, and end-user devices
- Maintaining and supporting Windows Server, Active Directory, Group Policy, DNS/DHCP, file/print services
- Supporting Azure AD, Exchange Online, Office 365 and cloud identity services
- Administering and troubleshooting Hyper-V environments, Veeam backups, WSUS, certificate services and endpoint management tools (e.g.

ManageEngine)
- Contributing to IT security by supporting endpoint protection, email filtering, monitoring and other cybersecurity tools
- Identifying opportunities for automation, standardisation and process improvement within IT operations
- Acting as a technical mentor to junior team members, sharing knowledge and providing informal training and guidance
- Producing clear documentation of solutions, processes and best practices
- Taking part in disaster recovery planning, testing and service continuity initiatives

Skills and experience

Essential:

- Strong experience in Windows Server environments: AD, Group Policy, DNS/DHCP, file/print
- Excellent understanding of Azure AD, Exchange Online, Office 365 and cloud identity
- Working knowledge of Hyper-V, Veeam, WSUS, certificate services and endpoint management tools (such as ManageEngine)
- Familiarity with security tools and concepts: endpoint protection, email filtering, monitoring/SIEM or extended AV
- Good understanding of networking fundamentals: TCP/IP, VLANs, firewalls and general troubleshooting

Desirable:

- Experience using collaboration and tracking tools such as Jira and Confluence
- Experience with ERP systems (Epicor ideal), including day-to-day support and admin