Lead Infrastructure Engineer (Platform/DevOps)

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., * 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., 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., 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., * 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., 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., 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 .

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

Do you have experience in UNIX?, * 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)., 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., 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), * 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, 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).

£53,540 - £68,250 Base salary is £53,540- £57,250 per year with an additional DDaT allowance of £4,350 - £11,000 per year available. The final salary and allowance awarded will be based on an assessment of your skills and experience as demonstrated at interview. All our roles come with an excellent benefits’ package, including the generous Civil Service Pension Scheme. Further salary increases depend entirely upon the outcome of our annual pay negotiation with central government. If you are a current Civil Servant transferring to us, your salary will be discussed in line with our pay policies. A Civil Service Pension with an employer contribution of 28.97% GBP, 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., 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

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., 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.