Senior Infrastructure Engineer (Database)

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.

This is an excellent opportunity to work in a forward-thinking organisation that embraces cloud technologies, automation, and continuous improvement, while helping shape the future direction of our database services.

Watch this video to find out more about working in Digital at Companies House

Why choose Companies House?

At Companies House we take a proactive approach to wellbeing by promoting a welcoming culture, healthy work life balance and supporting colleagues to be their best in work because we know people are the key to our success.

Our benefits include:

• Flexible working with no core hours (6am – 8pm flexible options)
• 30 days annual leave
• 8 bank holidays and 1 privilege day
• Enrolment into Civil Service Pension scheme average 28.97%
• On-site working available for peer led-learning enhancing professional experience and career progression

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

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.
• 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.

We are looking for an experienced Senior Infrastructure Engineer to join the Database Support team. Working in an agile environment, this team supports Oracle and MongoDB database instances that underpin the core business functions of Companies House.

As a Senior Infrastructure Engineer (Database) you will be:

• Defining, building, bringing into service, operating, supporting, continually improving new and existing database technologies, to serve a variety of user needs.
• Managing database configuration, maintain system access and security, leading database upgrades and ensuring latest patches are applied.
• Managing service availability, by proactively monitoring capacity along with performance tuning using Oracle OEM to identify issues before they occur.
• Managing incidents, requests, changes and problems, providing resolutions including root cause analysis.
• Maximise the use of tools and technologies and drive continuous improvement to deliver operational excellence.

We are looking for an experienced Senior Infrastructure Engineer, who meets the technical specifications outlined here: Infrastructure engineer - Government Digital and Data Profession Capability Framework

You can read more about a career in Digital and Data within the Civil Service in the Government Digital and Data Candidate Information Pack.

On-call opportunities:

Due to the nature of this role, there will occasionally be a requirement to work overtime during weekdays and weekends. You will also be expected to participate in an on-call rota, providing essential cover to ensure services remain operational 24 hours a day, 365 days a year, including Bank Holidays.

Participation in the on-call rota will only be required once you have demonstrated the necessary skills, knowledge, and competence to undertake on-call duties confidently.

Additional payments are available for both on-call duties and approved overtime, paid in addition to your annual salary.

This job is broadly open to the following groups:

• UK nationals
• nationals of the Republic of Ireland
• nationals of Commonwealth countries who have the right to work in the UK
• nationals of the EU, Switzerland, Norway, Iceland or Liechtenstein and family members of those nationalities with settled or pre-settled status under the European Union Settlement Scheme (EUSS) (opens in a new window)
• nationals of the EU, Switzerland, Norway, Iceland or Liechtenstein and family members of those nationalities who have made a valid application for settled or pre-settled status under the European Union Settlement Scheme (EUSS)
• individuals with limited leave to remain or indefinite leave to remain who were eligible to apply for EUSS on or before 31 December 2020
• Turkish nationals, and certain family members of Turkish nationals, who have accrued the right to work in the Civil Service

Further information on nationality requirements (opens in a new window)

This vacancy is using Success Profiles (opens in a new window), and will assess your Behaviours, Experience and Technical skills.

What will the process look like?Stage 1 – SiftAn initial sift of applications will be carried out to create a shortlist. This will be based on the evidence provided for the following Success Profile elements: Experience.

In your application form we’d like you to:

Write a CV: tell us about your employment history, including key responsibilities and achievements.

Write a Personal Statement of 1000 words: tell us, using examples, how you meet the following criteria:

• Strong experience administering and supporting Oracle Database 19c environments, including performance monitoring, backup and recovery, routine maintenance, upgrades, and operational troubleshooting.
• Experience working with Oracle Active Data Guard, ensuring high availability, disaster recovery readiness, and replication monitoring.
• Good working knowledge of AWS Cloud services, with experience supporting database and infrastructure workloads in cloud-based environments.
• Familiarity with MongoDB Atlas, including deployment support, monitoring, and operational management activities.

We'd encourage you to use the full word count, and to give us clear examples and evidence of the different elements of the essential minimum criteria.

We’re committed to being diverse and inclusive, so please make your application anonymous by removing all identifying personal information (such as your name and age) from your personal statement.

Once the advert has closed, we will sift applications - this involves reading through them all, please bear with us as this can take some time.

We may raise the score required if we receive a high number of applications.

At sift we may choose to take through the highest performing candidates to the next stage. If, after the final stage is completed and roles are unfilled, we will proceed to invite lower scoring candidates to interview.

Please note: In the case of a large number of applications, before conducting a full sift as described above, the panel may conduct a pre-sift assessing all applications against the following Experience criteria: Strong experience administering and supporting Oracle Database 19c environments, including performance monitoring, backup and recovery, routine maintenance, upgrades, and operational troubleshooting.

Stage 2 - InterviewCompanies House uses a blended interview technique, allowing us to find out more about you. We use the Success Profile framework and at interview we will use Success Profiles assessing the Behaviours and Technical Skills listed in the advert.

Successful candidates from the sift stage will be invited to a virtual interview, which will be conducted using Microsoft Teams.

The lead criteria to distinguish between tied candidates will be Technical Skill: Oracle 19c Database Administration, High Availability and Disaster Recovery

A reserve list may be held for up to 12 months from which further appointments may be made for the same or similar roles.

All offers will be made in merit order.

Our recruitment process is underpinned by the principle of recruitment based on fair and open competition with decisions made on the basis of merit, as outlined in the Civil Service Commissioners’ Recruitment Principles.

Dates (dates are indicative only and could be subject to change

• Closing date: 4th October 2026
• Sifting: w/c 5th October 2026
• Interview: w/c 19th October 2026

SponsorshipCompanies House cannot offer Visa sponsorship to candidates through this campaign. Companies House holds a Visa sponsorship licence but this can only be used for certain roles, and this campaign does not qualify. Should you apply for this role and require sponsorship, your application may be rejected, and any provisional offers of employment withdrawn.

Security ClearanceSuccessful candidates must pass a Baseline Personnel Security Standard (BPSS) check before they can be appointed.

BPSS is an entry level security check. It uses the Police National Computer (PNC) to make sure a candidate has no convictions. The check returns evidence of any current criminal record and un-spent convictions under the Rehabilitation of Offenders Act 1974.

Successful candidates must meet the security requirements for Security Check (SC) before they can be appointed.

The requirement for SC clearance is to have been present in the UK for at least 3 of the last 5 years. Failure to meet the residency requirements will result in your security clearance application being rejected.

Further information on National Security Vetting

Pre-Employment Checking

In line with Government guidance, successfully appointed candidates will need to provide documents for our Right to Work checks.

From June 2026, applicants who are successful at interview will be, as part of pre-employment screening, subject to a check on the Internal Fraud Database (IFD). Your personal details (name, National Insurance number, and date of birth) will be checked against the Civil Service Resourcing Extract IFD.

This check will provide information about employees who have been dismissed for fraud or dishonesty offences. This check also applies to employees who resign or otherwise leave before being dismissed for fraud or dishonesty had their employment continued.

If your details appear on this database, you will not be offered employment unless you can demonstrate exceptional circumstances. Companies House, acting on behalf of the vacancy holder, will inform you if your application is refused for this reason.

Please note: You are not eligible to apply for a role within the Civil Service if the application is made within a 5 year period following a dismissal for carrying out internal fraud against government.

Feedback will only be provided if you attend an interview or assessment.