Skip to main content

His Royal Highness The Duke of Edinburgh, 10 June 1921 to 9 April 2021

Read about the arrangements following The Duke of Edinburgh’s death

Job details and how to apply for our Data Scientist role in our Data Analysis Function at the Welsh Revenue Authority (WRA).

Role details

Job title

Data Scientist

Salary range

£30,600 to £37,410


HEO / Higher Statistical Officer

(Entry to the Government Statistician Group (GSG) to be obtained within 6 months)

Working pattern

This is a full-time role. However, flexible working arrangements and job sharing are welcomed and will be considered.

Contract type



We’re currently working from home and following Welsh Government guidelines around COVID-19. When it is safe and sensible to return to our offices, they will be cleaned more regularly, social distancing measures will be observed and the wellbeing of our staff will remain our highest priority.

Since March, we have welcomed several new colleagues to the WRA while working from home. We have safe processes in place to deliver IT and office equipment (contact-free) for our new colleagues.

Once it’s safe for us to return to the office, we will be working between the Welsh Government offices in Merthyr Tydfil and Cardiff. This role could be based at either office. We will be moving into new offices in 2021, likely in the Pontypridd area.

Closing date and time

30 March 2021 at 11.55pm

Reporting to

Adam Al-Nuaimi, Head of Data Analysis

Contact us about this role

About us

At the Welsh Revenue Authority (WRA), we’re responsible for collecting and managing two devolved Welsh taxes; Land Transaction Tax and Landfill Disposals Tax, on behalf of the Welsh Government. The revenue we raise funds public services, like the NHS and schools, in communities across Wales.

We’re committed to helping deliver a fair tax system for Wales through what we call ‘Our Approach’ - a Welsh way of doing tax. By working collaboratively with representatives, partner organisations, taxpayers, and the public, we make sure taxes are collected efficiently and effectively.

We base everything we do on our Corporate Plan 2019 to 2022. This sets out our purpose, strategic objectives, and longer-term ambitions. We report on our work annually - see our latest Annual Report and Accounts 2019 to 2020.

We’re a small and multi-skilled organisation of more than 70 staff, with talents, skills and experience spanning 14 different professions. We champion innovation, collaboration and shared decision-making. And we empower and entrust our people with high levels of responsibility and autonomy.

Find out more about what it’s like to work with us in our latest People Survey.

For further information, please visit

About the role

Working directly to the Head of the Data Analysis Function, the Data Scientist will play a vital role in developing and maintaining the capacity of the organisation to analyse its data, taking advantages of developments in data science and technology, while applying sound data management principles alongside data security and protection considerations. 

The Data Analysis Function is helping the WRA to develop some of its key priorities around a fair and accurate taxation system. There is much work to do in developing the data analysis capability that will support this. The primary focus of the role will be to lever more value from the data estate available to the WRA, enhancing the links that can be drawn between different data entities, and ultimately our operational understanding and intelligence. Analysis will generally be internally focussed but improvements may also be made to public-facing analyses as the role develops.

You will need to be a self-motivated and competent user of IT, particularly in the use of databases and code frameworks, as well as a sound data analyst who is adaptable to quickly changing requirements. Able to confidently support and advise colleagues at all levels, you will be a key player both as part of the Data Analysis team, and in providing excellent service to the wider organisation. To be successful in the role, you will need to enjoy problem solving, as well as being a sound communicator.

We are looking for an individual who can work both independently and in a team environment and adapt to quickly changing requirements. To enjoy the role, you will appreciate that the WRA is still forming and there is much to do, and that the role will change over time.

This role will be considered part of the Government Statistical Service (GSS) and it is a requirement of the role that the successful candidate will achieve admittance into the Government Statistician Group (GSG) within 6 months of joining WRA. Entry into the GSG will involve undergoing an assessment known as a ‘badging exercise’ through the Government Statistical Service.

Data sits right at the heart of the WRA. Not only is it at the heart of our decision making, but it touches and supports everything we do as an organisation. You will be part of our Data Analysis Function at an exciting time as we expand our data skills and you will play a key role in helping us make the most of our data. You will undertake a wide variety of data analysis tasks as part of ensuring evidence is at the heart of the organisation’s decision-making.

Rebecca Godfrey, Head of Strategy

Main tasks

Developing the WRA’s data analysis capacity, including the following:

  • support the Head of Data Analysis to develop a high level approach to wider and innovative data analysis, including consideration of appropriate data science/artificial intelligence techniques and sustainable technological approaches 
  • work with the Head of Information Governance to ensure all data capture and analysis are covered by appropriate applications of data protection principles, including consideration of impact on data subjects and regulatory guidance 
  • develop and maintain a data science presence in the organisation in keeping with the general direction of travel for the Government Statistical Service, and developments in the Code of Practice for Statistics 
  • support all parts of the organisation to extract value from underlying information sources, for example: 
    • build new analyses to increase the organisations ability to identify tax error and risk, for example detection of deliberate or accidental errors in existing tax returns 
    • develop a system to find and record relationships between different items of data and information to facilitate the above and to support the recognition of unauthorised and otherwise taxable activities 
    • develop the art of the possible, taking account of wider organisational requirements and views of other analysts in the team
    • wider data acquisition to support each of the above, liaising with the team’s Data Manager to ensure effective and efficient integration of new data into the existing WRA data architecture
  • support the development of new statistics with a view to publication, and increased value for new and existing users of external-facing statistical information 
  • development of self and team members in data science skills and cloud computing techniques (in both the coding and no-code environments), including Microsoft T-SQL and use of Azure Data Studio, Python and other languages/development frameworks as necessary

Success criteria

We recruit using success profiles. Our success profiles guidance will help you in completing your application. 

In brief, this approach means: 

  • we look for evidence of what you have done and what you can do. This means we look for the behaviours, strengths and ability needed to do the job 
  • where necessary or relevant, we also consider experience and technical knowledge 
  • this approach starts at application stage and continues throughout the recruitment process 
  • we may only look for some things at certain stages. We’ll always be clear what we’re looking for and when 

You should highlight evidence from the table below during the recruitment process. You may also wish to refer to the main tasks mentioned above.



Assessed in personal statement and CV

Assessed during interview or assessment

Seeing the big picture

Be alert to emerging issues and trends which might impact or benefit own and team’s work



Communicating and influencing

Communicate in a straightforward, honest and engaging manner, choosing appropriate styles to maximise understanding and impact



Changing and improving

Use technology where possible to increase efficiency



Making effective decisions

Analyse and use a range of relevant, credible information from internal and external sources to support decisions





Assessed in personal statement and CV

Assessed during interview or assessment


You can adapt to variations in work or environment and your effectiveness isn’t impacted by change



Problem solver

You take a positive approach to tackling problems and find ways to identify suitable solutions



Team player

You work well as part of a team and strive to ensure the team pulls together and is effective



Experience and technical knowledge


Assessed in personal statement and CV

Assessed during interview or assessment

Able to demonstrate proven ability in any coding language and to learn others, for example, python, Microsoft T-SQL, R



Able to efficiently join and process multiple large structured or unstructured datasets to extract key messages



Able to demonstrate an understanding of the key issues in managing data safely and with appropriate regard for data protection




  Assessed in personal statement and CV Assessed during interview or assessment

One of the following qualifications or relevant level of experience:

  • Graduate with a first or second-class honours degree in a numerate discipline, computer science or IT equivalent which demonstrates core statistical skills.
  • Higher degree, for example, an MSc or PhD, in Data Science, Mathematics, Statistics, Physics (this is not a definitive list).
  • Worked in a statistical or data science field and are able to demonstrate Continuous Professional Development (via a logbook) in statistics or data science at the same level as a foundation degree or Higher National Diploma (Level 5).



Welsh language requirements

The following list of language requirements represents an objective assessment of the Welsh language skills required to undertake the duties of this post:

Welsh language skills

Welsh skills are desirable


0 = No skills


0 = No skills


0 = No skills


0 = No skills

Welsh desirable means that having Welsh language skills would be useful in this role, but it is not an assessment criteria so it won’t put you at any disadvantage during recruitment if you aren’t a Welsh speaker. We support all staff to learn or improve their Welsh language skills once they join us.

Level of security vetting

As a civil service department, all our people have access to government assets. Different roles require different levels of national security vetting.

Clearance level

Required for the role

Baseline Personnel Security Standard


Counter Terrorist Check


Security Check


Developed Vetting



Our assessment process includes a blended interview, where we test you against the criteria above. Depending on the role, we may:

  • test for strengths relevant to the behaviours
  • ask you to complete an exercise, test, or presentation at interview stage
  • ask if you have any requirements you would like us to be aware of

How to apply

To apply for this role, please send us:

  1. Your CV (no more than 2 pages of A4).
  2. A personal statement (800 to 1,200 words) on how you meet the criteria.
  3. Your Details form. This allows us to make sure our recruitment process remains fair. It will not be shared further than our HR team.

Send all 3 documents to

To be fair to all, we do not accept:

  • late applications
  • incomplete or missing documents
  • personal statements over 1,200 words

We’re currently working from home and unfortunately cannot accept applications by post. If you're interested in this role and unable to apply by email, please contact us on 03000 254 699 to discuss alternative ways to apply. 

We're unable to discuss opportunities with recruitment agencies, please apply directly. 


We offer a wide range of benefits when you join the WRA, such as:

  • a generous pension
  • progression related pay
  • 31 days holiday

Find out more about the benefits of working for us.

Find out more about us

Find out more about our work by visiting our website. Or follow and engage with us on our Twitter, LinkedIn and YouTube accounts.