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Job Description
We are looking for a Lead Data Scientist to join the eCommerce Data team at NEXT’s Head Office in Enderby, Leicestershire. The role offers a competitive salary range and a wide range of benefits.
Next is one of the UK’s largest fashion retailers. We sell thousands of items every hour and our e‑commerce business is expanding rapidly. If you want to work in a fast‑moving tech environment, grow your career, and thrive, this is the place to be.
About the role
As a Lead Data Scientist within Marketing Science, you will build data‑driven solutions through state‑of‑the‑art machine learning, causal inference, and experiment design. You will measure true impact and provide actionable recommendations to the business. You are expected to handle end‑to‑end projects and mentor junior and senior data scientists when necessary.
* Work closely with marketing teams and agencies to understand challenges and opportunities in e‑commerce marketing.
* Lead the design, development, and deployment of data science solutions that inform marketing strategy and execution.
* Build Marketing Mix Models, predictive models, lifetime value prediction, churn analysis, marketing attribution, and channel optimisation.
* Partner with stakeholders to test, learn, and optimise campaigns through experimental design or causal inference methods.
* Create dashboards and data products that enable self‑serve analytics and real‑time insights for marketing teams.
* Drive data quality, model governance, and documentation standards across the marketing science function.
About you
* Proven experience in applied data science or analytics, with 2+ years in a leadership or mentoring role.
* Strong expertise in marketing analytics, building MMM models via Meridian, Robyn, and/or PyMc, multi‑touch attribution, and customer lifecycle modelling.
* Proficiency in SQL, Python, R, PySpark, and dashboarding in PowerBI or Looker.
* Experienced running Geolift tests, causal inference models, and other forms of experimental design.
* Solid foundation in machine learning, statistics, econometric modelling, and strong analytical and problem‑solving skills.
* Strong communication skills with the ability to translate complex data insights into actionable business strategies.
* Preferred experience in e‑commerce, technology, or marketing industry.
* Degree (Bachelor’s or Master’s) in Statistics, Computer Science, Data Science, Economics, or a related field.
We’ll support you with a flexible, hybrid work arrangement at our Leicestershire Head Office. Our offices are inspiring, but we also understand that life happens, so we offer flexible working options to help you achieve a healthy work‑life balance.
Benefits
* 25% off most NEXT, MADE, Lipsy, Gap and Victoria’s Secret products (when purchased through NEXT)
* Company performance–based bonus
* Sharesave scheme
* On‑site nursery (OFSTED outstanding in all areas)
* 10% off most partner brands & up to 15% off branded beauty
* Early VIP access to sale stock
* Access to Staff Shops and discount programs
* Restaurants with great food at amazing prices
* Digital GP and other free health and wellbeing services
* Free on‑site parking
* Financial wellbeing support (Save, track and enhance your financial wellbeing)
* Apprenticeship – grow and develop on the job while gaining a qualification
* Direct to Work – discount online and in‑store, collect items the next day for free from your place of work or local store
* Support networks – access to network groups to empower and celebrate each other
* Wellhub – discounted flexible monthly gym memberships, apps, PT sessions and more
Conditions apply to all benefits. These benefits are discretionary and subject to change.
We aim to support all candidates during the application process and are happy to provide workplace adjustments when necessary. If you need support due to a disability or long‑term condition, please contact the recruitment team by email at headoffice_careers@next.co.uk (include “Workplace Adjustments” in the subject line), or call 0116 284 2486 and leave a voicemail.
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