Senior Infrastructure Engineer (Database)

Companies House; Cardiff, City of Edinburgh; Hybrid; GBP 70,000 - 100,000; Full time

Benefits offered by this job

30 days leave

Civil Service Pension

Equality & inclusion

Flexible/mobile working

Seasonal flu jabs

Family leave

Cycle to Work

Job summary

Companies House is seeking an experienced Senior Infrastructure Engineer (Database) to join our Infrastructure Engineering team in the UK. You’ll deliver, support, and evolve our database platforms with a focus on Oracle and MongoDB, across cloud-based and modern environments including Oracle on AWS and MongoDB Atlas.

You’ll be involved in database administration, performance optimisation, security, backup and recovery, monitoring, and supporting major technology and business change initiatives.

Qualifications

• Experience in database administration and performance optimisation.
• Focus on Oracle and MongoDB technologies.

Responsibilities

• Database administration and performance optimisation.
• Security, backup and recovery, and monitoring.
• Support major technology and business change initiatives.

Job description

We have an exciting opportunity for an experienced Senior Infrastructure Engineer (Database) to join our Infrastructure Engineering team. You'll play a key role in delivering, supporting, and evolving our database platforms, with a particular focus on Oracle and MongoDB technologies.

Working across cloud-based and modern database environments, including Oracle on AWS, MongoDB Atlas, PostgreSQL, and automation tools, you'll help ensure our services remain secure, resilient, and highly available. You'll be involved in database administration, performance optimisation, security, backup and recovery, monitoring, and supporting major technology and business change initiatives.

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Why join us? Here’s what you’ll enjoy:

• 30 days annual leave + 8 bank holidays + 1 privilege day
• Civil Service Pension with an average 28% employer contribution (worth £12,434 for this role!)
• Equality, diversity & inclusion at the heart of everything we do
• Flexible and mobile working for a great work-life balance
• Seasonal flu jabs
• Generous family leave – maternity, paternity, adoption & shared parental
• Cycle to Work scheme

Find out more about what a great place Companies House is to work

If you have any questions about the role or process, please reach out to [e-mail].

This role closes on Sunday 4th October 2026 at 23.55pm.

Please note:

• Companies House cannot offer Visa sponsorship to candidates through this campaign.
• Security Clearance is an essential requirement for this campaign. You'll need to have been in the UK for at least 3 out of the last 5 years to be eligible to apply.
• You will be based at either our Cardiff or Edinburgh office where you will be expected to attend on a regular basis.
• On-call duties form part of this role and will be undertaken on a rota basis once you are fully trained and and have met competency expectations.