Senior System Engineer

IntaPeople; United Kingdom; On-site; GBP 40,000 - 70,000; Full time

Job summary

An established industry player is seeking a Senior Systems Administrator who thrives in a hands-on role to enhance their IT environment. This position offers the chance to take ownership of key systems, including Microsoft 365 and Azure AD, while leading a team and tackling challenging infrastructure projects. The ideal candidate will have extensive experience in systems administration, a security-aware mindset, and a passion for mentoring junior staff. Join a straightforward, dynamic team where your expertise will make a real impact and your contributions are valued.

Qualifications

• 5-7 years in a systems/infrastructure role as a senior, lead, or sole admin.
• Strong experience with Microsoft 365, Azure AD, and Cisco networking.

Responsibilities

• Manage Microsoft 365, Azure AD, and on-prem Windows Servers.
• Lead infrastructure projects and mentor junior IT staff.

Skills

Microsoft 365

Azure AD

Cisco Meraki

Mimecast

Veeam

Acronis

ERP support

Security awareness

Tools

Windows Servers

Networking

Job description

Senior Systems Administrator Hybrid but mainly onsite - 4 days p/week onsite
Location: Cardiff, South Wales

A client of ours needs a hands-on Systems Administrator to stabilise, secure, and support their IT environment. It s a standalone, high-trust role you ll be the go-to expert for infrastructure, cloud, and security.

This isn t BAU support. It s for someone who s been around the block and can lead the back-end estate while upskilling junior IT staff.
What You ll Be Doing

• Running the show across Microsoft 365, Azure AD, and on-prem Windows Servers
  
• Getting hands-on with Cisco Meraki, Mimecast, backups (Veeam/Acronis), and general networking
  
• Being the final escalation point for tricky issues no ticket-chasing
  
• Helping deliver small infrastructure projects and supporting ERP systems (IFS/SAP/Oracle etc.)
  
• Improving documentation, security posture, and general system resilience
  
• Working closely with the senior management and mentoring junior team members
  

What You ll Need

• 5 7 years in a systems/infrastructure role ideally as a senior, lead, or sole admin
  
• Strong experience with:
  
  • Microsoft 365 (Exchange, SharePoint, Teams)
    
  • Azure AD / Entra ID, Group Policy
    
  • Cisco, ideally Meraki, general networking
    
  • Mimecast, backups (Veeam/Acronis/Barracuda)
    
  • ERP support (any major system e.g. IFS, SAP, Dynamics)
    
• Security-aware mindset (ISO 27001, ITIL frameworks, MFA, patching, etc.)
  

Why Take This Role

• Real ownership not stuck in red tape or tiered service desks
  
• Get things done decisions are quick, and your input matters
  
• Straight-talking environment no corporate waffle, just solid IT
  

On-site in South Wales ideal for someone local or willing to travel.
Apply now if you re a seasoned admin who still loves fixing things the right way.