Junior Infrastructure Engineer

This is an exciting opportunity to build your career in infrastructure and cloud security, gaining hands-on experience with AWS alongside exposure to Azure and on-premises technologies. Working with experienced infrastructure specialists and teams across the CMA, you’ll help support, maintain and improve secure, reliable cloud services while developing your technical expertise. You’ll contribute to infrastructure projects, incident resolution, performance monitoring and security activity, with guidance and support from senior colleagues as you grow your skills.

About the CMA

The Competition and Markets Authority (CMA) is the UK’s principal competition and consumer protection authority. We promote competition and protect consumers with a clear end goal in mind: to drive economic growth and improve household prosperity. The CMA has a range of powers, which it uses to undertake a wide variety of cutting-edge, high profile and complex work, spanning merger and market inquiries, competition and consumer law enforcement, our role in the digital markets competition regime, subsidy advice, and internal market advice.

You can read more about working at the CMA including our office locations in our candidate pack

General

• Support infrastructure projects and programmes, helping delivery align with agreed strategies and architectures.
• Contribute to ITIL-based technical governance forums, such as ARB, CAB and steering groups, by providing input and learning from senior colleagues.
• Support supplier relationship management, helping monitor service delivery and alignment with requirements.
• Assist with the design, configuration, testing, implementation and maintenance of cloud infrastructure solutions.
• Help monitor infrastructure availability and performance, escalating issues and supporting KPI delivery.
• Develop understanding of ITIL, NCSC and GDS guidance, and support colleagues in applying it.
• Support incident and problem investigation, seeking guidance from senior colleagues where required.

Cyber Security & Performance Management

• Support colleagues in maintaining cloud infrastructure security, gaining experience with incidents, vulnerabilities, patches and configuration changes.
• Assist with monitoring performance, availability and costs, supporting analysis, capacity planning, licence management and technical tuning.
• Develop awareness of industry trends and share observations with senior colleagues.

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.

Application and sift stage

• As part of the application process you will be asked to complete a CV, personal statement and an online application form. Further details about application requirements are listed on the application form.
• The selection process will comprise of the sift (CV & personal statement review) and an interview. Arrangements for the interviews will be enclosed in the invitation.
• At the sift stage, your application (CV & personal statement) will be reviewed and assessed against the essential criteria listed under the Person Specification of the role profile
• Please note that it is essential that your personal statement is aligned to provide evidence that you have the knowledge and experience for each of the essential criteria (as included on the role profile attached and listed above under 'Person Specification') in your application. Your personal statement should be no more than 1250 words.
• Candidates will initially be sifted on the first two essential criteria points (Lead Criteria). If your application progresses to a full sift, all elements of the essential criteria listed under Person Specification will then be considered.
• We may raise the score required at sift stage to progress to interview if we receive a high number of applications and take through the highest performing candidates to the interview stage.
• Successful candidates at sift will be invited to an interview which will be conducted either in person at the CMA Head Office in Canary Wharf, London.

Interview stage

• At the CMA we apply a blended interview technique, allowing us to find out more about you and we use the Success Profiles framework assessing the Behaviours, experience and technical skills listed in the advert and attached role profile.
• The first part of the interview will comprise of a technical exercise, details of which will be sent with your interview invitation.
• The second part of the interview will be a 45-60 minute panel interview in which you will be asked questions based on the Behaviours, Experience and Technical skills outlined in the role profile.
• A reserve list may be held for up to 12 months from which further appointments may be made for the same or similar roles.

Timeline (the dates outlined below are indicative and may be subject to change)

• The advert closing date is 4th November 2026 (23:55pm). We are not able to accept late applications.
• The sift is scheduled to take place from 5th November 2026.
• Interviews will be held from the week commencing 16th November 2026, in-person at the CMA Head Office in Canary Wharf, London.

Reasonable adjustments

Our recruitment process is fully inclusive and we can make adjustments to provide you with the opportunity and support to bring your best self to the recruitment process. This could include having an interview buddy, extra time at interviews/assessments, or receiving interview questions in advance. We will be happy to discuss any person-centred adjustments you’d like us to make to the process and you can contact us by emailing our dedicated mailbox at adjustments@cma.gov.uk

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