Senior Associate ODIs and Cost Change

Job summary

We are Ofwat, the Water Services Regulation Authority, a non-ministerial government department responsible for regulating the water sector in England and Wales.

We have an opportunity for a ODIs and Cost Change Senior Associate to join our Price Review Team within the Delivery Directorate.

The water sector is entering a new chapter. Following the Independent Water Commission’s Final Report and subsequent White Paper - 'New Vision for Water', the UK government has set out a bold new direction - one that brings together expertise from across the sector to deliver better outcomes for customers and the environment.

Ofwat is working in collaboration with the government and other regulators to help establish a new body for England, combining our strengths with those of the Drinking Water Inspectorate, the Environment Agency, and Natural England. We’re also continuing to engage with the Welsh Government to support future decisions for Wales.

While these changes take shape, our mission remains the same: to hold water companies to account, drive performance, and ensure the sector delivers real value for customers, communities, and the environment. If you’re passionate about making a difference, this is a unique moment to join us and help shape the future of water, and together we can continue to make a positive impact.

You can find out more about why you should join Ofwat, our strategy, values and our framework for success in the attached Information for Candidates Pack.

Job description

The ODIs and cost change senior associate will make an important and valuable contribution to enable us to deliver on our goals and regulatory commitments.

This is a multi-faceted role. The postholder will be expected to make a significant contribution in the areas of project management, policy, planning and co-ordination across both the in-period ODIs and cost change projects.

Key deliverables:

Your responsibilities within the in-period ODIs and cost change teams will include:

• assisting with project planning and preparation as well as monitoring and tracking project delivery;
• contributing to the drafting of Information Notices and other publications;
• assisting with the management and co-ordination of document production for draft and final determinations, ensuring these are delivered to a high standard and on time;
• assessing evidence provided by companies to support ODI payments or cost change claims and forming a view on whether or not we should allow these payments;
• leading on policy development for specific topics. This will include:

• • identifying policy issues:
  • using qualitative and quantitative analysis to assess different types of evidence;
  • developing policy options and recommendations, supported by appropriate evidence and reasoning;
  • presenting findings and recommendations to senior stakeholders to get the decisions needed for the project;
  • drafting the reasoning for our decisions for internal and external published documents.

• assisting with the management and co-ordination of papers for project and Ofwat governance meetings;
• building strong stakeholder relationships both internally and externally to ensure that our decisions are joined up and that there has been appropriate stakeholder engagement.

Person specification

To be successful in this role you will need the below essential attributes, experience, skills and knowledge:

Experience, skills and knowledge

1. Lead criterion: Experience of assisting with project management responsibilities including planning and co-ordination of projects and production of assessment criteria and templates.
2. Graduate qualification and/or equivalent professional experience relevant to the role discipline.
3. Proven ability to identify issues and to use qualitative and quantitative analysis to assess evidence and develop well supported policy options and recommendations.
4. Proven ability to work to tight timescales in multi-disciplinary teams to deliver projects in a complex stakeholder environment while managing competing priorities.
5. Excellent stakeholder management skills, demonstrated by influencing and building relationships with a range of internal and external stakeholders and facilitating linkages between projects and work streams.
6. Excellent written and oral communication skills, with the ability to produce clear, concise, and well-structured reports and briefings, with the ability to present complex information effectively to a variety of audiences.
7. Excellent analytical and decision making skills, including understanding legal, financial and economic implications of decisions.

Attributes

8. Delivers outcomes
9. Promotes collaboration
10. Makes relationships count
11. Adaptive thinker
12. Creates clarity

Attributes as per Ofwat's Framework for Success for the relevant salary grade. You can read more about Attributes here.

Benefits

Why You Should Join Us:

Our people are at the heart of Ofwat, and our People Strategy defines the goals that keep this focus at the centre of everything that we do. In our annual People Survey 2024, we outperformed the Civil Service (CS) People Survey benchmarks in all 10 areas.

Almost four in five of our people would recommend Ofwat as a great place to work. Nine in ten say that they are treated with respect and that Ofwat respects individual differences. Nine in ten also say that the work they do is interesting and that they decide how they do their work. That’s great but it’s important to us to build an environment that is not only fair, inclusive and empowering but also collaborative. Here, nine in ten of our people say that their team works together to find ways to improve what we do, and that their manager is open to their ideas.

You will also benefit from:

• Good employer pension contributions.
• 25 days’ annual leave (increasing to 30 with each year of service) plus bank holidays and an extra 2.5 days of privilege leave
• Access to exclusive discounts on a variety of goods and services, including retail outlets, theatre tickets, holidays, insurance, and a gym membership
• Flexible working arrangements that suit your lifestyle
• Fees paid for membership of relevant professional bodies
• Up to 3 volunteering days per year
• Recognition vouchers scheme
• Generous shared parental leave and pay
• Enhanced sick pay
• Regular development opportunities
• Health and wellbeing initiatives
• Cycle-to-work scheme
• Season ticket loan for home-to-office travel
• Free eye tests and contribution to lenses/spectacles for VDU users

Moving to Ofwat from another employer will mean you can no longer access childcare vouchers. This includes moves between government departments. You may however be eligible for other government schemes, including Tax-Free Childcare. Find out more at https://www.childcarechoices.gov.uk/.

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

How to apply

Apply through the Civil Service Jobs website where you’ll be asked to create an account and complete an application form (CV and personal statement). If you’re unable to make an electronic application, please contact recruitment@ofwat.gov.uk and we will support you in completing your application.

Please see the candidate guidance on our website for more detail and tips on how to best make your application and prepare for interview.

Please ensure you have submitted your application in full ahead of the deadline listed below. Unfortunately, we won't be able to consider late applications.

Selection timetable

• Closing date: 23.55 on Sunday 17 May 2026
• Sifting: Week commencing18 May 2026
• Interview dates: Week commencing 8 June 2026

Assessment process

Sift Stage - Blind Sifting

We operate a blind sifting model to eliminate bias. All candidate identifying information will be removed from applications.

At sift stage we will assess your application (CV and personal statement) against essential criteria 1 to 5 listed above. Please ensure you provide enough evidence in your application form to demonstrate how you meet the criteria.

Use your cv and personal statement to address the below criteria and tell us how your experience, skills and knowledge meet them:

1. Lead criterion: Experience of assisting with project management responsibilities including planning and co-ordination of projects and production of assessment criteria and templates.
2. Graduate qualification and/or equivalent professional experience relevant to the role discipline.
3. Proven ability to identify issues and to use qualitative and quantitative analysis to assess evidence and develop well supported policy options and recommendations.
4. Proven ability to work to tight timescales in multi-disciplinary teams to deliver projects in a complex stakeholder environment while managing competing priorities.
5. Excellent stakeholder management skills, demonstrated by influencing and building relationships with a range of internal and external stakeholders and facilitating linkages between projects and work streams.

*Please note that in the event of receiving a large number of applications, a pre-sift may take place on just the lead criterion.

** If a high volume of candidates meet the minimum pass mark at sift stage, we will only progress the highest scoring candidates to interview. Candidates not invited to interview, who have achieved the minimum pass mark, will be placed 'on hold' until the final stage of the assessment process is completed. Should the role/s remain unfilled, candidates placed 'on hold' may be invited to interview in merit order.

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

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. For further information on appropriate/inappropriate use of AI see the Civil Service guidance. Please note this guidance refers to ' Civil Service Success Profiles' Civil Service assessment framework. At Ofwat we do not use this in our assessments - please refer to our Framework for Success as listed above.

Interview Stage - Transparent Interviews and Presentation

At interview stage we will test against essential skills, experience, knowledge and attributes set out above.

Our transparent interview process involves candidates receiving a selection of attribute-based questions in advance. This has been proven to help neurodiverse candidates and others to perform better at interview and is part of our inclusive culture.

You can read more about attributes and our Framework for success here.

Please note that the interviews will be conducted via video conferencing software (Microsoft Teams).

Please ensure anything you present in your interview answers is factually accurate, and you are not presenting the ideas and experience of others, or generated by AI, as your own. You may expect follow up questions.

It may be necessary for a second stage interview, which will be communicated to the successful candidates, if required.

If the assessment process identifies more appointable candidates than roles available, a reserve list will be created for 12 months from which further appointments in merit order can be made.

If you have any queries about any aspect of this role, selection process, or you require any reasonable adjustments, please email recruitment@ofwat.gov.uk.

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

Security

Successful candidates must undergo a criminal record check.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 : recruitment@ofwat.gov.uk
• Email : recruitment@ofwat.gov.uk

Recruitment team

• Email : recruitment@ofwat.gov.uk

Further information

Complaints procedure - The process of recruitment and assessment embraces the principles of fair and open competition and best practice. The first is to maintain the principle of selection for appointment to the Civil Service on merit on the basis of fair and open competition as outlined in the Civil Service Recruitment Principles. The second is to promote an understanding of the https://www.gov.uk/government/publications/civil-service-code/the-civil… which sets out the constitutional framework in which all civil servants work and the values they are expected to uphold, and to hear and determine appeals made under it. 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 recruitment@ofwat.gov.uk in the first instance. If you are not satisfied with the response you receive from us, you can contact the Civil Service Commission at info@csc.gov.uk

Attachments

SA ODIs and cost change final pack Opens in new window (pdf, 944kB)