Senior Associate In period ODI and Price Review Modelling

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 In period ODI and Price Review Modelling to join our In-period ODI's Team within Price Review Directorate.

The water sector is entering a new chapter. The government has set out a bold new direction, bringing together expertise from across the sector to deliver better outcomes for customers and the environment. We are collaborating with fellow regulators to respond to recommendations in The Independent Water Commission Report, the Welsh Government’s response to the Green Paper, Shaping the Future of Water Governance in Wales, and the Government’s White Paper, A new vision for water.

Ofwat is working with the government and other regulators to help create a new body for England, bringing together our strengths with those of the Drinking Water Inspectorate, the Environment Agency and Natural England. We are also continuing to work with the Welsh Government to support decisions on the future arrangements 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 senior associate in-period outcome delivery incentives (ODI) and price review modelling 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 performing modelling processes across the in-period ODIs, cost change and PR24 reconciliation policy areas. Where required, the postholder may be expected to assist with modelling in areas of the price review.

Key deliverables:

In this role you will be expected to:

You will work closely with the principal, in-period ODIs PR24 to ensure that the in-period ODI determinations, cost change determinations and PR24 reconciliations are delivered accurately, effectively and on time. Your responsibilities will include:

• building / amending, running and quality assuring reconciliation models;
• ensuring that agreed policy interventions are accurately reflected in our models;
• assisting with planning and preparation as well as monitoring and tracking the delivery of modelling processes;
• contributing to the drafting of in-period determination publications;
• leading on specific areas of policy within the in-period ODIs modelling area;
• liaising with teams to obtain the inputs needed to run the in-period adjustments models including the cost change team, C-MeX, D-MeX and BR-MeX teams and risk and return team (for inflation and tax assumptions);
• designing and carrying out appropriate quality assurance processes for modelling;
• working with the data management team to ensure models are linked to the Ocean Fabric database;
• preparing models for publication in accordance with the required publication checklist and liaising with publications team to ensure they are published on time;
• deputising for the principal, in-period ODIs PR24 when they are on leave to support continued modelling work;
• contribute to drafting slides for project and Ofwat governance meetings;
• presenting findings and recommendations to senior stakeholders on assigned areas to obtain the required modelling decisions,

Another key part of your role will be to support the principal, in-period ODIs PR24 in ensuring that the Water Company Performance Report Team (WCPR) uses consistent ODI data and to help develop policy and processes for the PR29 and 2029-30 blind year reconciliations.

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 designing, building and working with Excel data models, as well as a good understanding of Microsoft applications including PowerBi and Fabric.
2. Graduate qualification and/or equivalent professional experience relevant to the role discipline.
3. Proven experience of a process/es that involve(s) the coordination and delivery of multiple complex models, with appropriate quality assurance and to tight timescales.
4. A good understanding of how outcomes frameworks, performance commitments and ODI are used to incentivize companies to deliver more for customers and the environment.
5. Experience of price reviews and a good understanding of price review modelling processes.
6. Proven experience of working to tight timescales to produce high quality analysis (qualitative and quantitative) while managing competing priorities.
7. Experience of building effective relationships and networks with relevant internal staff and external stakeholders.
8. Good 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.
9. Excellent analytical and decision-making skills, including understanding legal, financial and economic implications of decisions.

Attributes

10. Builds trust
11. Delivers outcomes
12. Promotes collaboration
13. Makes relationships count
14. 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 central to everything we do. Our 2025 People Survey highlights several key strengths. Nine in ten colleagues say that they are treated with respect and that Ofwat values individual differences. The same proportion say that their work is meaningful and that they are being trusted to carry out their roles effectively. 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, 79% of our people rated their manager highly, and 85% described their team environment as positive.

You will also benefit from:

• Good employer pension contributions. You can find further details about pension schemes under Terms and Conditions in the Candidate Pack.
• 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 26th July
• Sifting: Week commencingMonday 27th July
• Interview date(s): Week commencing Monday 10th & Monday 17th August

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 1,2,3,4 & 5 listed above. Please ensure you provide enough evidence in your application form to demonstrate how you meet the criteria.

*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 meets 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.

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

Final Candidate Pack - BC1154 SA In-period ODI and price review Opens in new window (pdf, 922kB)