Senior Infrastructure Engineer - Companies House - HEO

Location: Cardiff, Wales (CF14 3UZ)

What is this role?

This is a Senior Infrastructure Engineer role within Companies House Digital, specialising in Linux and Storage infrastructure.

You’ll support and modernise the platforms that underpin core UK company services, from registration and dissolution to the secure storage of company information required under the Companies Act.

Why this role matters

The infrastructure you support enables services used by millions of people and businesses across the UK.

In this role, you will:

• Keep critical systems reliable, secure and performant
• Support both customer‑facing services and backend databases
• Play an active role in migrating on‑premise services to the cloud
• Help modernise infrastructure using automation and cloud technologies

What you’ll be doing

As a Senior Infrastructure Engineer (Linux & Storage), you’ll:

• Support Linux and Storage platforms providing 8:30am–5pm cover
• Participate in a 24/7 on‑call rota (with additional allowance)
• Respond to and resolve incidents within agreed targets
• Proactively monitor systems and prevent issues before they occur
• Carry out root cause analysis and implement corrective actions
• Contribute to cloud migration projects (on‑prem → cloud)
• Design and implement configuration and upgrade pathways
• Install, configure and decommission infrastructure as needed
• Maintain system documentation and keep the CMDB up to date
• Work in line with Change Management processes at all times

Skills & experience we’re looking for

• Linux administration, including virtualisation
• AWS cloud technologies
• Automation tools such as Terraform, Ansible and Concourse
• Storage / SAN technologies, including NetApp CVO / FSx
• Working calmly under pressure and prioritising effectively
• Collaborating in technical teams and sharing knowledge
• Communicating clearly with technical and non‑technical colleagues
• Working with third‑party suppliers to resolve complex issues

Interested?

This partner post gives you the overview.

Click through to the full Civil Service Jobs advert for full details and to apply.