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You might know us as a supermarket, technology company or even for our award-winning mobile network.

Tesco Stores Limited is seeking a Senior Data Scientist to design forecasting and probabilistic models for large-scale retail data.

Sika is a specialty chemicals company with a globally leading position in the development and production of systems and products for bonding, sealing, damping, reinforcing, and protection in the building sector and industry. Sika has subsidiaries in 103 countries around the world, produces in over 400 factories, and develops innovative technologies for customers worldwide. In doing so, it plays a crucial role in enabling the transformation of the construction and transportation industries toward greater environmental compatibility. In 2024, Sika’s around 33,000 employees generated annual sales of CHF 11.76 billion. Join us as IT Access Engineer and help implement, automate, secure and improve our access management solution for Nuage - Sika’s global custom-built R&D data platform! In this role you will be part of a fast-growing Global R&D Digitalization team, transforming how our global R&D function develops and working on wide range of topics - from using traditional data science techniques to optimising operational efficiency along with state-of-the- art AI solutions to identify novel construction materials. This role is designed for remote working with occasional trips to Welwyn Garden City. Your main tasks will be: • Automate and streamline communication between cloud and on-prem systems., • Manage, test and debug user access groups., • Identify and fix security vulnerabilities in the access setup., • Higher education or proven track record of relevant working experience, • 2+ years of working experience with production software in the role of Software Engineer, Software Architect, Data Engineer, Data Scientist or similar, • Excellent knowledge of Python and Java, • Strong understanding of data security principles, • Experience with REST or GraphQL APIs, • Good knowledge in at least one of: Microsoft Azure, ITIL, agile work practices and/or web platform management, • Effective verbal and written communication skills, • Excellent capacity to prioritise work, • HTML/JS knowledge, • RAG and Jira/Confluence knowledge, • Competitive salary, • Holiday 25 days rising to 28 days with service, plus bank holidays, • A company pension contribution of up to 10%, • Private healthcare for you, with option to add family, • Group life cover at 6x your annual salary, • Group Income Protection (PHI) We offer competitive salaries, aligned with local market benchmarks and the specific scope and responsibilities of each role. Compensation is determined based on skills relevant to the position, education and/or training. We are committed to fair and equitable pay practices in accordance with applicable laws and regulations. #J-18808-Ljbffr

Tesco UK is seeking a Senior Data Scientist to design and deploy forecasting and probabilistic models for large-scale retail time series.You will blend data from multiple sources and build robust pipelines for training, validation and backtesting, ensuring scalable, measurable business value.You wil

We’re looking for a curious and collaborative Data Scientist to join our Data Science Chapter at Tesco Mobile. Build, validate, optimise and manage data science models and data pipelines. Experience working with databases and combining multiple data sources for modelling and analysis.

Data Scientists are also responsible for promoting data science across Tesco and representing Tesco across the external Data Science community. Finally, as a Data Scientist, you will be expected to drive innovation and take ownership of aspects of the project development, support the Lead Data Scien

A major UK telecommunications provider is seeking a Data Scientist to join its Data Science Chapter.The role involves building data models, analyzing diverse datasets to enhance customer experiences, and collaborating within teams.With a commitment to inclusivity, the company offers a flexible worki

Tesco Stores Limited is seeking a Senior Data Scientist to lead forecasting and probabilistic modelling for large-scale retail data.You will prototype solutions with minimal support and drive innovation while coordinating with stakeholders across engineering, product and business teams.The role emph

Roche UK in Welwyn Garden City seeks a Senior Data Scientist to architect enterprise AI, transform vast data into actionable insights, and help expand patient access to medicines.Lead end-to-end ML development from data exploration to production deployment in collaboration with commercial and medica

The Tesco Data Science team are looking for a Simulation Data Scientist to use simulation to help solve challenging problems across the business and our supply chain from supplier to shelf.At Tesco, our Data Science team focuses on modelling complex business problems and deploying data products at s

About the roleThis is a hands-on position where you will need to leverage your analytical mindset to find solutions to complex problems. As a Senior Data Scientist, you will need to understand difficult business problems and prototype solutions with minimal support.A core component of the role is applying, modifying, and designing algorithms and mathematical models to solve business problems using big data architectures (Hadoop, Spark, Cloud). In this role, your primary focus will be forecasting and related statistical or probabilistic modelling, with a strong emphasis on rigorous evaluation against robust baselines, careful validation, and scalable deployment.Our Data Scientists must be able to validate, document and present the modelling process and performance, as well as communicate complex solutions in a clear, understandable way to non-experts.Data Scientists are also responsible for promoting data science across Tesco and representing Tesco across the external Data Science community.Finally, as a Senior Data Scientist, you will be expected to drive innovation and take ownership of aspects of project development, support the Lead Data Scientist and Product Manager in managing relationships with business stakeholders, and mentor and supervise junior team members and interns.You will be responsible for• Designing and improving forecasting and statistical modelling solutions for large-scale retail and business time series.• Blending data from multiple sources to explain historic behaviour and generate forward-looking predictions and scenarios.• Building robust training, validation and backtesting pipelines, including time-aware evaluation, leakage controls and stability checks.• Applying best practices for productionisation, including monitoring, retraining strategies, and performance and cost considerations.• Collaborating closely with engineering, product and business partners to ensure models are reliable, scalable and deliver measurable business value.You will needWe are looking for ambitious individuals with a mix of statistics, programming skills and familiarity with time series analysis or broader forecasting and probabilistic/statistical modelling. A proven track record of designing and modifying advanced algorithms and applying them to large data sets is essential. Some project and stakeholder management experience is preferred.An ideal candidate will have a scientific mindset with the ability to ask the right questions, as well as answer them. A strong numerical higher degree in a mathematical, scientific, engineering, economics or computer science discipline is preferable, as well as a solid understanding of mathematics and statistical principles.Meaningful academic or industrial work involving forecasting or probabilistic/statistical modelling is required. This includes experience blending data from different sources to explain historic behaviour and produce forward-looking predictions and scenarios.We particularly value experience in modelling risk or volatility, econometrics, or other types of modelling that support strategic, multi-year decision making. Experience in areas such as scenario modelling, uncertainty quantification, causal analysis, or long-range planning is a plus.Finally, strong programming skills are essential (Python is preferred) as well as familiarity with software engineering best practices (such as version control, unit testing and CI/CD) and big data and cloud technologies (PySpark preferred). Experience developing and deploying models in cloud environments is a strong advantage.Whats in it for you?We’re all about the little helps. That’s why we make sure our Tesco colleague benefits package takes care of you – both in and out of work. Click Here to find out more!Annual bonus scheme of up to 20% of base salary.Holiday starting at 25 days plus a personal day (plus Bank holidays).Private medical insurance.26 weeks maternity and adoption leave (12 months service required at the qualifying date) at full pay, followed by 13 weeks of Statutory Maternity Pay or Statutory Adoption Pay, we also offer 6 weeks fully paid paternity leave.Free 24/7 virtual GP service, Employee Assistance Programme (EAP) for you and your family, free access to a range of experts to support your mental wellbeing.The above information is a shortened summary, refer to our policies for full detailsAbout UsYou might know us as a supermarket, technology company or even for our award-winning mobile network. Truth is, we’re all of those things, and much more. Our colleagues work with one goal in mind, helping to make every day a little better for our customers, colleagues and communities all over the world. No two customers are the same, neither are our colleagues.At Tesco, we champion a balance that lets you thrive both in and out of work. Spend 60% of your week collaborating with colleagues at our office locations or local sites and the rest remotely. Whether you're just kicking off your career, juggling passions, or navigating big life events, we're here to support you. We always welcome a conversation about flexible working, so talk to us throughout your application about how we can support.We're proud to be an accredited Disability Confident Leader, where everyone’s welcome. That’s why we commit to providing a fully inclusive and accessible recruitment process. If you need support with your application, click here for more information. And if you're interested in joining our team but don't tick every box, don't let that hold you back from applying.When you join us in this role, you'll be employed by Tesco Stores Limited, the Tesco legal entity responsible for your employment. #J-18808-Ljbffr

Tesco is seeking a Data Scientist to develop and deploy neural network–based forecasting models for large-scale retail time series across multiple business areas.

Tesco is seeking a Simulation Data Scientist to develop and apply simulation models across Tesco's business and supply chain, from supplier to shelf.You will build, connect and validate models, use scenario experiments, and work within an agile Data Science team to deliver reliable simulation tools.

At Tesco, our Data Science team builds scalable solutions to complex business challenges across stores, online, supply chain, marketing and Clubcard. You will collaborate closely with Machine Learning Engineers and Software Engineers to ensure solutions are efficient, maintainable, and aligned with

The Tesco Data Science team are looking for a Simulation Data Scientist to use simulation to help solve challenging problems across the business and our supply chain from supplier to shelf.At Tesco, our Data Science team focuses on modelling complex business problems and deploying data products at s

Tesco offers a generous benefits package including an annual bonus, private medical insurance, and a commitment to work-life balance.

Data Scientists are also responsible for promoting data science across Tesco and representing Tesco across the external Data Science community. Finally, as a Data Scientist, you will be expected to drive innovation and take ownership of aspects of the project development, support the Lead Data Scien

Tesco Data Science invites applications for a Simulation Data Scientist to solve challenging supply chain and business problems using simulation. You will develop, connect and validate models across operations, collaborating in an agile team with version-controlled code and repeatable deployment practices. Based in Welwyn Garden City, you will design models at varying fidelities, integrate them across tools, and use real data to inform decisions. #J-18808-Ljbffr

Senior Data Scientist - AI & Machine LearningApply: Welwyn: Full time: Posted Today: End Date: October 19, 2026 (6 days left to apply): 202610-124942At Roche you can show up as yourself, embraced for the unique qualities you bring. The PositionAt Roche UK, we are transforming healthcare by

In this Senior Data Scientist role you will solve difficult business problems by prototyping and refining algorithms using big data architectures.

As a Data Scientist at Tesco, you design, build, and deploy machine learning and generative AI solutions that shape how we serve customers and run the business.