Senior System Engineer

Senior Systems Administrator – Hybrid but mainly onsite – 4 days p/week onsite

Below, you will find a complete breakdown of everything required of potential candidates, as well as how to apply Good luck.

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