Data Scientist Jobs in Wales, United Kingdom

Sardine’s Fraud Prevention team builds AI‑driven solutions to stop identity and payment fraud for 300+ banks and fintechs. The Data Scientist designs and deploys machine learning and graph analytics models, works directly with clients to prototype proofs‑of‑concept, and scales production‑ready solutions while standardizing modeling workflows.

Data Science Team at Code First Girls builds AI-driven solutions for client enterprises. The role leads generative AI projects from ideation through MVP and enterprise deployment, collaborating with senior data scientists and cross‑functional stakeholders.

Analytics team at Focal Systems builds AI-driven retail solutions that automate and optimize brick‑and‑mortar stores. The Senior Data Scientist owns end‑to‑end analytical problems, designs experiments, builds predictive and inferential models, and translates insights into product and operational improvements.

Viridien, an advanced technology and Earth data company, drives sustainable solutions through its Data Hub. As a Data Scientist you will design and maintain data‑processing pipelines, collaborate with SMEs and labeling teams, and develop ML models to enhance data products. Based in Llandudno, United Kingdom, hybrid model with up to 2 days remote per week, relocation assistance available.

Insights function, Technology Department at PHMG. The team modernizes data capability to drive business decisions, building predictive models and statistical analyses for subscription renewals, churn, and revenue trends.

Applied Sciences and Engineering team at UiPath partners with customers to deploy, customize and build AI products that transform businesses. The role conducts forward‑deployed data science, applying machine learning, statistical modeling, forecasting and optimization to solve commercial challenges.

Data Science & Analytics team at Autotrader drives the company’s transformation into a data‑science‑led organisation, building ML‑centric products such as personalised suggestions, search improvements and AI tools for listings. The Senior Data Scientist leads cross‑functional squads, orchestrates end‑to‑end ML projects, mentors analysts and scientists, and collaborates with engineers to productionise models.

Data Science practice at Informed Solutions builds end‑to‑end data science solutions for public and private sector clients, driving digital transformation and AI innovation. The Senior Data Scientist designs, develops, tests and deploys advanced models, mentors junior practitioners, and collaborates with engineering and UX teams to ensure robust, compliant solutions.

Data Science Teams at Monzo are building the bank of the future, focusing on real‑time analytics and data‑driven decision making. As Lead Data Scientist you will define data strategy, champion experimentation best practices, and mentor a growing team while partnering with product, engineering, design and research to shape new features.

Underwriting Analytics team at Coalition focuses on measuring, understanding, and optimizing underwriting through data-driven insights. The Senior Data Scientist develops statistical and machine learning models to assess cyber risk, creates risk signals for underwriting, and leads cross‑functional initiatives with actuarial, product, and engineering teams.

Associate Data Scientist (HEO) role at ONS offers a 6‑month contract to build early‑career data science pipeline. Working hybrid in Newport or Titchfield, you’ll join multidisciplinary teams of Data Scientists, Engineers and Software Engineers.

As a Lead Data Scientist in the Quantitative Analysis department at bet365, you will spearhead the development of advanced probabilistic models that power real-time In-Play betting markets. You will design and deploy sophisticated machine learning solutions to determine odds and analyze complex sports data within a hybrid work model based in Stoke-on-Trent, England.

Data & Analytics team at Mobysoft builds data products that improve social housing outcomes. The Senior Data Scientist designs, builds, and deploys machine learning models for early‑warning, forecasting, and prescriptive analytics, and collaborates with product and engineering on a shared roadmap.

As a Senior Data Scientist within the Insights, Guidance and Control (IGC) Cell of the OMNIA® Training consortium, you will help transform British Army collective training by turning complex training, safety, and operational challenges into data-driven insights that influence senior decision-making. Day-to-day, you will gather and prepare data from multiple sources, apply statistical modelling and machine learning, develop and validate predictive models and analytical tools, write maintainable P

Recommendations team within Customer Data Science at Marks & Spencer builds next‑generation personalised product recommendations, outfit suggestions and AI Stylist conversational experiences. The Senior Data Scientist designs, develops and productionises end‑to‑end ML and GenAI systems, including retrieval, ranking and LLM‑based components, and creates evaluation frameworks for LLM outputs.

Technology team at Code First Girls drives AI and data transformation for client projects. The Senior Data Scientist builds and deploys AI/ML and Generative AI models, writes patents and research papers, and translates data insights into business decisions.

ENSEK is a cloud-native SaaS company transforming how energy retailers operate, innovate, and manage at scale through automation and AI-driven insight. As a Senior Data Scientist within the Data Function, you will translate complex business problems into data science opportunities, own end-to-end ML solutions, and partner with Product, Engineering, and Commercial teams to drive measurable product and customer outcomes.

Data Science team at The Inside Job provides technical leadership and assurance across data science, ensuring machine learning solutions are designed, built, and operated to high standards. The Lead Data Scientist guides modelling approaches, defines technical standards, mentors staff, and partners with architecture and engineering teams to deliver scalable, production‑ready solutions.

RealAdvisor is a leading European digital real estate platform supporting 7,000+ agencies and 10+ million users annually, with a mission to help real estate professionals grow through data, transparency, and smart technology. As a business-oriented Data Scientist, you will consolidate and analyze product, marketing, and transactional data, build ML models and experiments to drive subscription growth, and translate insights into concrete product and marketing actions.

Data team at GoodFit builds a real‑time data engine that powers B2B growth insights. As a Senior Data Scientist you will design, prototype and ship customer‑facing ML models, partner with product, design and engineering to turn experiments into scalable features, and ensure data quality and model interpretability.