Senior IT Infrastructure and Support Engineer

Holt Engineering; Holbrook CP; On-site; GBP 45,000 - 48,000; Full time

Job summary

A leading technology company in Holbrook CP is seeking a Senior IT Infrastructure & Support Engineer. The role involves managing core infrastructure services, providing high-level technical support, and mentoring junior colleagues. Candidates should have strong experience with Windows Server and Azure services, along with a good understanding of networking fundamentals. This position offers a competitive salary and a chance to contribute significantly to IT operations.

Benefits

Benefits package

Qualifications

• Strong experience in Windows Server environments, including AD and Group Policy.
• Excellent understanding of Azure AD and Exchange Online.
• Good grasp of networking fundamentals such as TCP/IP and VLANs.

Responsibilities

• Provide advanced technical support for infrastructure and applications.
• Maintain and support Windows Server, Active Directory and DNS/DHCP.
• Support Azure AD, Exchange Online, and Office 365 services.

Skills

Windows Server environments

Azure AD

Endpoint protection

Networking fundamentals

Tools

Hyper-V

Veeam

Office 365

Jira

Confluence

Job description

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