Data Scientist

Job Description

We are looking for a Data Scientist to join our growing Data Science AI team at NEXT! Based from NEXT Head Office in Enderby, Leicestershire!

The Role

As a Data Scientist you will play a crucial part in managing, innovating and optimising our core AI systems and large scale product catalogue (Data feed). Working heavily within DataBricks and Google Cloud Platform, you will focus on enriching our product catalogue feeds, building scalable machine learning solutions and driving continuous improvement in our automated capabilities.

Rather than standard reporting, the focus of this Data Scientist role is to actively innovate on how we process, optimise and leverage data feeds to drive business value across NEXT.

We are looking for someone with a strong grasp of data science techniques who can build robust models while communicating findings and new AI strategies effectively to various stakeholders.

What You’ll Take On

• Innovate and optimise complex data feeds, ensuring high quality, relevance and performance of our data feeds and pipelines.
• Collaborate with teams from around the business to understand problems, identify automation opportunities and gather requirements for modelling and advanced analytics.
• Proactively develop systems detecting trends and anomalies within large data streams, creating presentations or automated reports to recommend algorithmic or business logic improvements.
• Work closely with data engineers to improve the data collection process (data ingestion \& ETL pipelines) and support initiatives for data integrity, normalisation and scalability.
• Build, deploy, monitor and maintain ML Models. Key use cases include feed optimisation, recommendation algorithms, classification tasks, predictive analytics and MLOps deployments.
• Continuously evaluate the effectiveness of our models and feed logic, providing recommendations for architecture improvements and performance optimisation.

What You’ll Bring

• Proven years of Data Science experience related to the retail, eCommerce or consumer tech industries (3-4 years).
• Good analytical \& problem-solving skills and excellent attention to detail.
• Understanding and experience of data science techniques covering statistical analysis, A/B testing, time-series, regression, classification and optimisation problems.
• Proficient in SQL \& Python. Familiarity with data manipulation libraries (e.g. PySpark, Pandas, Numpy) and machine learning frameworks (e.g. scikit-learn, TensorFlow or PyTorch).
• Experience with MLOps tools (e.g., MLflow, Databricks Model Registry, Unity Catalog, Vertex AI) and version control (Git).
• Strong coding practices with experience in code optimisation, ETL frameworks and processing large-scale data feeds.
• Good time management skills with the ability to manage multiple deadlines, priorities and iterative product developments.
• High-level written and verbal communication skills. Ability to convey complex algorithmic or technical findings to non-technical audiences.
• Ability to visualise data in Data Studio/Looker Studio or PowerBI.
• A proactive innovator who is willing to learn different technologies and analytical platforms to improve our tech stack.

Desirable / Nice to Have

• Experience working with Large Language Models (LLMs) and agentic workflow frameworks (e.g. LangGraph, LangChain).
• Experience developing custom evaluation harnesses to test and validate AI model outputs.
• Familiarity with Retrieval-Augmented Generation (RAG) architectures or fine-tuning open-source models.

About Us

You know Next, but did you know we’re a FTSE-100 retail company employing over 44,000 people across the Next group. We’re the UK’s 2nd largest fashion retailer and for Kidswear we’re the market leader. At the last count we have over 450 stores, plus the Next Online and it’s now possible to buy on-line from over 80 countries around the world! So we’ve gone global!

About The Team

• 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 available; OFSTED outstanding in all areas
• 10% off most partner brands \& up to 15% off Branded Beauty
• Early VIP access to sale stock
• Access to fantastic discounts at our Staff Shops
• Restaurants with great food at amazing prices
• Access a digital GP and other free health and wellbeing services
• Free on-site parking
• Financial Wellbeing - Save, track and enhance your financial wellbeing
• Apprenticeship - Grow and develop on the job whilst gaining a qualification
• Direct to Work - Discount online and instore, collect your 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, with 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. Should you need support with your application due to a disability or long-term condition, feel free to get in touch with us by email headoffice_careers@next.co.uk (please include 'Workplace Adjustments' in the subject line), or call us on 0116 284 2486 and leave a voicemail.