Financial Cost Modeller

The Home Office works to build a safe, fair and prosperous UK. We achieve this through our work on counter-terrorism, policing, fire, crime, drugs policy, immigration and passports.

The Public Safety Group’s role is to keep the public safe by cutting crime, disrupting the highest harm criminals, protecting the vulnerable and ensuring that our police, fire and rescue services are as efficient and effective as they can be in delivering front line public services. We work with our partners in other government departments, local government and the voluntary sector to develop and implement policy, provide funding, and deliver legislation.

The Home Office is leading a pan departmental, cross government programme to deliver the new Emergency Services Network (ESN) critical communications system. This will replace the current Airwave service used by the emergency services in Great Britain. The strategic aim of the Emergency Services Mobile Communications Programme (ESMCP) is to deliver a much better voice and data service to emergency services replacing the reliable but limited and ageing Airwave system.

The cost modelling team are part of the Programme Finance team and own the financial cost model that underpins the Programme Business Case (which has a whole life cost of £19.1bn) and the financial performance of key commercial contracts. This role is critical to maintaining the financial model and in supporting key procurement activity pre and post award of contracts along with running scenarios of potential outcomes. The successful candidate will work with key stakeholders to understand cost drivers for the model and provide financial briefings to stakeholders.

The successful candidate will need to be an experienced modeller with a background in estimating, finance, economics or operational research used to working in a complex environment with multiple stakeholders.

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 and Experience.

This gives us the best possible chance of finding the right person for the job, drives up performance and improves diversity and inclusivity.

We will endeavour to conduct the selection process in line with the dates indicated below, but cannot guarantee that these will not, where necessary, be revised.

• Application – by 12 OCTOBER 2026

As part of the application process, you will be asked to complete:

• CV
• Personal Statement (maximum 750 words)

Your CV should consist of your career history, qualifications and skills/experience, including any key achievements in each role. Your CV will be scored against the experience required for the role as noted within the essential criteria.

The Personal Statement should be aligned to and demonstrate how you meet the skills and experience set out in the essential criteria, detailed in the job description.

For guidance and information on how to construct your application (CV, Personal Statement and Behaviours), you are encouraged to visit Civil Service Careers website.

• Sift – 14 OCTOBER 2026.

The sift will be held on the Personal Statement and CV.

• Interview – 04 NOVEMBER 2026.

If you are successful at sift stage, you will be invited to an interview that will be Behaviour based questions, as listed in the advert.

The interview will take place online via Teams.

For guidance and information on what to expect and how to prepare for an interview, you are encouraged to visit Civil Service Careers.

Problems during the application process

If you experience problems accessing this advert, or you think you’ve made a mistake on an initial application, please contact hocandidates.grs@cabinetoffice.gov.uk, including the vacancy reference, at least two working days before the vacancy closes.

Further information can be found on our website.

Do not create or attempt to submit another application, online test or use a different Civil Service Jobs account to proceed as this would be in violation of the candidate declaration.

Location preference

You will only be able to select a single location preference so please ensure this is a location that you are prepared to travel to. If you are offered a role at your preferred location and you decline, your application will be withdrawn.

Reserve List

A reserve list may be held for a period of up to 12 months from which further appointments may be made. There is no guarantee that being held on a reserve list will lead to a job offer. Further information can be found on our website.

Breaking Tied Scores

The Personal Statements will be ranked in order of importance to enable us to differentiate between candidates with tied interview scores.

Standards

All Civil Servants are expected to comply with the Civil Service Code, and its core values of integrity, honesty, objectivity and impartiality.

Further Information

In order to process applications without delay, we will be sending a Criminal Record Check to Disclosure and Barring Service on your behalf. However, we recognise in exceptional circumstances some candidates will want to send their completed forms direct.

If you will be doing this, please advise Government Recruitment Service of your intention by emailing Pre-EmploymentChecks.grs@cabinetoffice.gov.uk stating the job reference number in the subject heading.

Reasonable Adjustments

If a person with disabilities is at a substantial disadvantage compared to a non-disabled person, we have a duty to make reasonable changes to our processes.

If you need a change to be made so that you can make your application, you should:

• Contact Government Recruitment Service via HOrecruitment.grs@cabinetoffice.gov.uk as soon as possible before the closing date to discuss your needs
• Complete the “Assistance Required” section in the “Additional Requirements” page of your application form to tell us what changes or help you might need further on in the recruitment process. For instance, you may need wheelchair access at interview, or if you're deaf, a language service professional

If you are experiencing accessibility problems with any attachments on this advert, please contact the email address in the ‘Contact point for applicants’ section.

Feedback

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