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Affinity Water

Associate Data Scientist

Welwyn Hatfield
£30k/yr
Posted 1 day ago
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Join us on an 18-month fixed-term contract as an Associate Data Scientist and be part of our established Performance & Insights team, helping us make better use of data to support smarter business decisions across Affinity Water.

You’ll work with a variety of data to uncover insights, identify trends and patterns, and support the development of predictive and machine learning models. You’ll also work closely with stakeholders to understand business challenges and turn them into meaningful analytical solutions.

This is a great opportunity for a recent graduate or someone early in their data science career who is curious, enjoys solving problems and wants to develop their skills in a real-world business environment.

What you'll be doing

  • Collect, clean and analyse structured and unstructured data.
  • Explore datasets to identify trends, patterns and insights.
  • Support the development and deployment of statistical and machine learning models.
  • Create clear and engaging data visualisations to communicate findings.
  • Use Python or R and SQL to analyse and manipulate data.
  • Work with technical and non-technical stakeholders to understand business needs.
  • Contribute to a collaborative, data-driven team and keep up to date with new data science tools and techniques.

What we're looking for

  • A degree in Data Science, Computer Science, Statistics, Mathematics or a related subject.
  • Experience using Python or R, including tools such as Pandas and NumPy.
  • Knowledge of machine learning and statistical concepts.
  • Experience using SQL for data extraction and manipulation.
  • Strong problem-solving and analytical skills.
  • The ability to explain complex data and insights clearly.
  • Experience working with datasets through academic projects, internships or previous roles.
  • A curious, proactive approach and willingness to learn.
  • The ability to work collaboratively and manage changing priorities.
  • Experience with cloud platforms such as AWS, GCP or Azure, or version control tools such as Git - desirable

Reasons to use Rodeo

I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.

Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

Start with a chat, not a search bar

Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.

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Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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It searches the market for you

Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.

Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

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Strong

Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

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Strong

Only hits

No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.

Advert closes Friday 2nd October

Benefits:

  • Salary from £30,000 dependant on skills and experience
  • Learning and development opportunities, including mentoring and a range of formal courses and open learning resources.
  • Entry into the company annual bonus scheme.
  • Annual leave from 26-30 rising with length of service, and the option to purchase up to 5 extra days.
  • A ‘Celebration Day’ in addition to public holidays that people can use to celebrate a religious festival or other occasion that is important to them.
  • A generous 'double match pension scheme' that doubles the contributions you make (company contribution capped at 12%)
  • We offer a range of family benefits including enhanced Maternity, Adoption, Paternity, Shared Parental Leave, Fertility Support Leave and up to 5 full or 10 half days of paid Carers Leave.
  • Menopause policy and Reasonable Adjustment policy to help everyone perform at their best.
  • Access to our Wellbeing Centre with support for looking after your physical and mental health.
  • Discounts at a Range of Retail Outlets through our Tap4Perks scheme
  • Discounts on Dental and Medical Insurance through our Tap4Perks scheme through salary sacrifice
  • Up to 4 Affinity days a year to volunteer in the community.
  • Life Assurance.
  • Disability Confident

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Get help applying for this job

As a Disability Confident employer, we’re committed to offering interviews to disabled candidates who meet the essential criteria and opt in on the application form. Ask the Talent Acquisition lead for the full job description to see all the criteria. If we have a very high volume of applicants and we’re not able to offer interviews to all, we’ll take a fair and proportionate number of disabled candidates through.

Affinity Water recognises the benefits of greater diversity in our workforce to better reflect the communities we serve. We are committed to building a more inclusive culture where every member of our workforce can thrive.

You can find out what it’s like to work at Affinity Water through our career site https://www.affinitywatercareers.co.uk/ where our colleagues share their career development stories and you can get a feel for our company culture.

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Location

Tamblin Way, Hatfield, UK

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