Lead Infrastructure Engineer (Platform/DevOps)

Job summary

We are looking for an enthusiastic Lead Infrastructure Engineer (Platform/DevOps) with great leadership and technical skills and a drive to improve. This role is a unique opportunity as you will be part of a team delivering Platform Infrastructure and systems to the highest standards and implementing the DevOps culture and principles across the business.

Give yourself the best opportunity to apply!

Join our Outreach team for an informal, drop-in “find out more” session on:

Thursday 21st May 2026 at 12pm - 1pm

No need to register: just click on the link above to join, listen, and gain tips to help you apply. Cameras and microphones will be switched off.

Can’t make the session, or want something to refer back to? Just email our Outreach mailbox on: outreachinnovationteam@companieshouse.gov.uk and we’ll share a copy of the session slides.

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.
• 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.
• We're able to consider full-time, part-time and compressed hours for this role for the successful candidate (part-time and compressed options would be a minimum of 30 hours over 4 or 5 days).

Job description

The position will be focussed on building and maintaining Infrastructure to enable the organisation to deliver rapidly and reliably deploy and innovate for our customers. A Lead Infrastructure Engineer will work our development teams, ensuring work is delivered to the standards set out in our best practice guides. The role requires the candidate to lead on various streams of work and provide technical support to Infrastructure engineers across the organisation.

As a LeadInfrastructure Engineer, the candidate must perform at the level defined within the DDaT Capability Framework.

You may be required to undertake line management responsibilities in this position: this will be discussed with the successful candidate. Management experience is not essential as training can be provided.

Responsibilities

You will be responsible for delivering the infrastructure and tooling to support a continuous delivery approach within Companies House. You will be user and service focused ensuring that value is delivered through improvement and automation of platform services. Working in a team of infrastructure specialists and engineers, a Lead Infrastructure Engineer builds, administers, supports, and maintains solutions as directed and according to departmental policy. Most of the time will be spent working with the delivery teams on carrying out the infrastructure work on development projects. This will include answering any queries regarding environment, configuration, and CI/CD processes.

At this role level, you will:

• Ensure services are integrated, delivered, and operated as required.
• Work with technical architects to translate architectural designs into operations.
• Design and develop infrastructure as code, source code repositories, and Continuous Integration/Continuous Delivery pipelines to execute change on Cloud environments.
• Lead and support colleagues in non-functional requirements, ensuring availability, security, capacity, and performance for the platform and/or service.
• Transform technical requirements into an effective DevOps toolchain to enable product delivery.
• Ensure that deployment strategies for products are repeatable, scalable, and universally available.
• Have deep technical knowledge, providing support to delivery teams and solving complex problems.
• Ensuring best practice guides are maintained and adhered to.
• Ensure that integration is controlled, maintained and managed through Iaas, PaaS and SaaS cloud solutions.
• Work with stakeholders to deliver and configure solutions via multiple cloud estate providers.
• Lead on technical workstreams, ensuring delivery aligns with organisational goals and best practices.
• Carry out horizon scanning and impact assessments to identify emerging trends and technologies, evaluating their potential influence on our services.

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, which will be assessed at sift and at interview.

Expert knowledge in:

• Terraform and Cloud technologies (preferably AWS)
• CI/CD tools (e.g., Concourse)

Strong practical experience in:

• GitHub (source control and versioning)
• Containerisation (Docker)
• Unix/Linux

Working knowledge of:

• Ansible
• Packer

Specialist skills:

• DevOps: Programming languages such as Java, NodeJS, and Python
• DevSecOps: Cloud security principles and disaster recovery (e.g., AWS Control Tower, IAM solutions, encryption, MFA, governance and compliance [ISO 27017], DRaaS)
• Testing Infrastructure: Testing principles and frameworks (e.g., Selenium/Java, Playwright/TypeScript, BrowserStack, Karate DSL)

Behaviours

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

• Delivering at Pace
• Leadership
• Making Effective Decisions
• Communicating and Influencing

Technical skills

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

• Terraform & Cloud Provider Technology Understanding
• Containerisation (Docker)
• CI/ CD Tooling and Principles

Benefits

Alongside your salary of £53,540, Companies House contributes £15,510 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?

• 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.
• 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.

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, Strengths, 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 Profiles element: Experience.

In your application form we’d like you to:

Write a CV: tell us about your employment history, including key responsibilities, projects worked on and achievements specifically relevant to the role responsibilities and experience required as detailed above.

Write a Personal Statement:

As part of your application, we would like you to provide a personal statement outlining a presentation or demonstration of your work. If shortlisted for the next stage, you will be expected to deliver the presentation or demonstration to the panel based on this submission.

This will assess the following criteria from the person specification:

Expert knowledge in:

• Terraform and Cloud technologies (preferably AWS)
• CI/CD tools (e.g., Concourse)

What you need to submit

Please provide a 1000 word, structured outline of a presentation or demonstration based on a real example from your experience on the following topic:

• Describe a time when you used Terraform to provision multiple resources within a cloud environment (AWS or Azure) using a CI/CD pipeline.

Your outline should clearly cover:

1. Terraform implementation

• Version used
• State file management approach
• Key provisioning considerations

2. Security considerations

• How infrastructure was secured
• How sensitive data and credentials were managed

3. Disaster Recovery and backup

• Use of Infrastructure as Code for recovery
• Backup approaches (e.g. snapshots, replication)

4. Rollback and deployment resilience

• Approach to handling failed deployments
• Rollback or remediation strategies

5. CI/CD pipeline

• Tooling used
• Key stages/steps in the pipeline and how they supported deployment

Important information

• The content of your presentation must be your own work, please refer to our AI guidance under 'Things you need to know' section.
• Please do not include any sensitive or confidential information.
• We have provided prompts to support you in writing your personal statement.
• 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.

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.

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: Expert knowledge in CI/CD tools (e.g., Concourse).

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 may proceed to invite lower scoring candidates to interview.

Stage 2 - Assessment

Candidates successful at sift will progress to the assessment stage, where you will be asked to deliver the presentation or demonstration you outlined in your application.

This will be a 30-minute session conducted via Microsoft Teams.

Full details will be emailed across to successful candidates after they have booked their assessment slot.

Please note: the Assessment will show as Interview 1 in your Civil Service Jobs account.

The assessment stage will be assessing the following Experience: Expert knowledge in Terraform and Cloud technologies (preferably AWS) and CI/CD tools (e.g., Concourse).

Stage 3 - 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 skills listed in the advert, and Strengths.

Successful candidates from the assessment 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: Terraform & Cloud Provider Technology Understanding.

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

If after the interview you are not found appointable at the advertised grade, you may be offered the lower grade role if you are considered to meet the skills, experience and behaviours for the lower level. The benchmark for appointing to the lower grade is set at the start of each campaign.

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)

• Drop in Q&A session: Thursday 21st May 2026 at 12pm - 1pm
• Closing date: 31st May 2026
• Sifting: w/c 1st June 2026
• Assessments: w/c 15th June 2026
• Interviews: w/c 29th June 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