Senior Infrastructure Engineer (Linux & Storage)

Job summary

• Do you have experience with Linux and Storage Infrastructure?
• Do you enjoy keeping up to date with the innovations in Cloud Computing and Automation technologies?
• Are you looking for a new challenge and an opportunity to develop your skills further?

Then we have the role for you!

We are looking for an experienced Senior Infrastructure Engineer to support and develop our existing Linux and Storage infrastructure. The Linux and Storage team performs a key role in the IT Services area of Companies House. The team supports the infrastructure that runs both front end services and back-end databases that underpin the core business functions of Companies House i.e. company registration, dissolution, and the storage of company information, as required under the Companies Act.

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

Companies House offers a flexible and welcoming culture that promotes a healthy work life balance as well as a proactive approach to wellbeing that allows us to be our best at work. We recognise that people are the key to our success so offer a fantastic benefits package including flexible working with no core hours, 30 days annual leave, 8 bank holidays and 1 privilege day as well as enrolment into the Civil Service Pension scheme with a contribution rate averaging 28%.

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 for SC.
• On-call allowance is paid in addition to the base salary and allowance advertised, please see the 'On-call Allowance and Overtime Pay' section below.
• The team for this role is based in our Cardiff office, and a hybrid employment contract will be provided as the standard offering. However, remote contracts may be considered as an exception whereby commuting to the office location of your team is not reasonably practicable.

Job description

As a Senior Infrastructure Engineer (Linux & Storage), you will: ·

• be part of a team that provides 8:30am to 5pm cover.
• take part in a 24/7/365 on call rota.
• respond to and resolve incidents to meet agreed targets.
• proactively monitor system performance, taking preventative or corrective action where required, ensuring Change Management procedures are always adhered to.
• provide root cause analysis to problems and propose/implement appropriate corrective actions.
• take a proactive role in the project to migrate on-premise services to cloud.
• participate in configuration design and upgrade pathways for the existing infrastructure.
• configure and install solutions to meet the business needs, ensuring agreed standards and the Companies House Change Management process is adhered to.
• decommission redundant systems/hardware.
• document existing and future systems/processes.
• ensure the CMDB is kept up to date.

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

Person specification

We are looking for the following experience and skills which will be assessed at sift and interview.

The successful candidate will be someone who has:

• experience of working with cloud computing technologies, specifically AWS.
• experience of working with automation technologies such as Terraform, Ansible & Concourse.
• experience of Linux administration, including virtualisation.
• knowledge of SAN technologies, including NetApp CVO/FSx.
• the ability to work as a member of a technical team who actively shares knowledge to help ensure all team members develop their skills and are kept up to date with any technical changes that could impact the team.
• excellent problem-solving skills and the ability to work well under pressure and prioritise work effectively.
• ability to work remotely from other team members and still be able to communicate effectively using the appropriate communication channel (telephone, Slack, email etc.) to resolve technical issues in a timely manner.
• ability to communicate effectively with technical and non-technical staff at all levels of the organization with excellent communication skills (both written and oral).
• ability to engage effectively with 3rd party support/vendors to resolve technical issues where necessary.

Behaviours

We'll assess you against these behaviours during the selection process:

• Changing and Improving
• Making Effective Decisions
• Working Together
• Delivering at Pace

Technical skills

We'll assess you against these technical skills during the selection process:

• Cloud Technologies
• Automation (specifically Terraform)
• Linux Administration

Benefits

Alongside your salary of £41,509, Companies House contributes £12,025 towards you being a member of the Civil Service Defined Benefit Pension scheme. Find out what benefits a Civil Service Pension provides.

We believe that our success is driven by the well-being and satisfaction of our team members at all levels of the organisation. At Companies House we’re committed to providing a comprehensive benefits package that goes beyond the ordinary, ensuring your career journey with us is not only fulfilling, but also rewarding. We pride ourselves on offering a quality work-life balance with our employee wellbeing being central to our working practices.

Head to Our benefits - Working for us - Recruitment (companieshouse.gov.uk) to find out more about the fantastic benefits package we have at Companies House.

We celebrate diversity...

As an equal opportunity employer, we celebrate diversity, being committed to ensuring we’re representative of the citizens we serve and creating an inclusive environment. Everyone in Companies House brings something different, and so will you. To fulfil our commitment to recruiting and attracting diverse talent we welcome applications from underrepresented groups. We also welcome applications from Welsh speakers.

We are proud to be a disability confident leader. Our recruitment process is fully inclusive and we can make adjustments as needed through our process. These could include having an interview buddy, extra time at interviews/assessments and receiving interview questions in advance, to name a few.

If you require any reasonable adjustments at application stage, or if you'd like to discuss any person-centred adjustments, please contact us by emailing recruitmentCH@companieshouse.gov.uk.

Read our 'Applying under the Disability Confidence Scheme (DCS)' guide to find out how to successfully complete an application under the Disability Confidence Scheme (DCS).

Where will you be working?

You will be aligned to our Cardiff office, where you will be expected to attend on a regular basis. We are currently using a hybrid approach to the way we work which provides opportunities for you to be adaptable in the way you work so that you can achieve a healthy balance between your work and home life. The degree of choice you have will depend on your role and your day-to-day work activities. Your manager will agree regular patterns of attendance with you, however you may be required to make yourself available to attend the office more frequently when required to meet business needs.

On-call Allowance and Overtime rates

The team operates a rota system, with each team member providing one week of cover approximately every four weeks. This arrangement may change in line with business and team needs.

Please see the below table for details of our flat rate on-call allowances.

Period

On-call Allowance (per 24-hour period)

On-call Allowance (per 12-hour period)

Weekdays

£47.32

£23.66

Weekends & BH

£94.64

£47.32

The flat rate on-call allowance payment assumes up to 30 minutes spent in resolving incidents in a 24-hour period. Any incident (or cumulative incidents) that require longer than 30 minutes resolving would attract standard overtime rates. If attendance on site is necessary, then a minimum of 3 hours’ overtime would be payable.

In addition, during weekend on-call you will be able to claim additional overtime when responding to an alert/call as set out below:

Time Spent Working on an alert/call

Weekend On-call and Overtime

30 mins or less

No Overtime claimed

More than 30 mins

Time worked (minimum of 3 hours) at weekend overtime rate (currently time and quarter)

Things you need to know

Artificial intelligence

Artificial intelligence can be a useful tool to support your application, however, all examples and statements provided must be truthful, factually accurate and taken directly from your own experience. Where plagiarism has been identified (presenting the ideas and experiences of others, or generated by artificial intelligence, as your own) applications may be withdrawn and internal candidates may be subject to disciplinary action. Please see our candidate guidance (opens in a new window) for more information on appropriate and inappropriate use.

Selection process details

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 – Sift

An 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 1250 words: tell us, using examples, how you meet the following criteria:

• experience of working with cloud computing technologies, specifically AWS.
• experience of working with automation technologies such as Terraform, Ansible & Concourse.
• experience of Linux administration, including virtualisation.
• knowledge of SAN technologies, including NetApp CVO/FSx.
• the ability to work as a member of a technical team who actively shares knowledge to help ensure all team members develop their skills and are kept up to date with any technical changes that could impact the team.
• excellent problem-solving skills and the ability to work well under pressure and prioritise work effectively.

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.

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:

• experience of working with cloud computing technologies, specifically AWS.
• experience of working with automation technologies such as Terraform, Ansible & Concourse.
• experience of Linux administration, including virtualisation.
• knowledge of SAN technologies, including NetApp CVO/FSx.

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.

Stage 2 - Interview

Companies 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 skillslisted 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 the Technical skill: Automation (specifically Terraform).

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: 5th May 2026
• Sifting: from 6th May 2026 onwards
• Interview: w/c 18th May 2026

Sponsorship

Companies 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 Clearance

Successful 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.

Security

Successful candidates must undergo a criminal record check.Successful candidates must meet the security requirements before they can be appointed. The level of security needed is security check (opens in a new window).

See our vetting charter (opens in a new window).People working with government assets must complete baseline personnel security standard (opens in new window) checks.

Nationality requirements

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)

Working for the Civil Service

The Civil Service Code (opens in a new window) sets out the standards of behaviour expected of civil servants.

We recruit by merit on the basis of fair and open competition, as outlined in the Civil Service Commission's recruitment principles (opens in a new window).The Civil Service embraces diversity and promotes equal opportunities. As such, we run a Disability Confident Scheme (DCS) for candidates with disabilities who meet the minimum selection criteria.The Civil Service also offers a Redeployment Interview Scheme to civil servants who are at risk of redundancy, and who meet the minimum requirements for the advertised vacancy.

Diversity and Inclusion

The Civil Service is committed to attract, retain and invest in talent wherever it is found. To learn more please see theCivil Service People Plan (opens in a new window) and the Civil Service Diversity and Inclusion Strategy (opens in a new window).

Apply and further information

This vacancy is part of the Great Place to Work for Veterans (opens in a new window) initiative.The Civil Service welcomes applications from people who have recently left prison or have an unspent conviction. Read more about prison leaver recruitment (opens in new window).Once this job has closed, the job advert will no longer be available. You may want to save a copy for your records.

Contact point for applicants

Job contact :

• Name : Teodora Arnold
• Email : tarnold@companieshouse.gov.uk

Recruitment team

• Email : recruitmentch@companieshouse.gov.uk

Further information

We welcome applications in Welsh / Rydym yn croesawi ceisiadau yn y Gymraeg. Selection for appointment to the Civil Service is on merit, on the basis of fair and open competition, as outlined in the Civil Service Commission’s Recruitment Principles. In accordance with the Civil Service Commissioners’ Recruitment Principles, our recruitment and selection processes are underpinned by the requirement of appointment on the basis of merit by fair and open competition. If you feel your application has not been treated in accordance with the Recruitment Principles and you wish to make a complaint, you should contact infopoint@companieshouse.gov.uk in the first instance. If you are not satisfied with the response you receive you can contact the Civil Service Commission .

info@csc.gov.uk

Civil Service Commission, Room G/8, 1 Horse Guards Road SW1A 2HQ