76 to 94 of 94 Lead Data Scientist Jobs in the UK

London Stock Exchange Group (LSEG) invites a Principal Applied Data Scientist to lead hands-on NLP/LLM initiatives within the LSEG Workspace. You will design, build, test, and deploy production-grade AI solutions used by financial professionals and collaborators across teams. You will work with cutting … edge NLP tooling, ensure reliability, and drive production delivery with a focus on scalable, measurable impact. This role offers exposure to major financial data products and strong career growth. #J-18808-Ljbffr ...

Marshmallow is seeking a Staff Data Scientist to lead end-to-end ML initiatives in the Claims domain from London. You will design production ML and Generative AI systems, partner with Product and Engineering, and drive scalable decisioning with a robust, auditable approach. You’ll influence cross ...

Elsevier is seeking a Senior Data Scientist I to lead the development and evaluation of advanced search and generative AI systems. You will own complex problems end-to-end, drive rigorous evaluation practices, and shape the technical direction of retrieval and RAG systems. You should have deep ...

architecture of AI solutions, in addition to building and running an AI platform to deliver business-specific Use Case solutions. Collaborating with the Data Platform to team in ingesting and transforming data from multiple systems, modeling data, and engineering data marts to create reusable data … operating a company wide agentic AI solution platform to help scale up AI capabilities across all functions and regions. Building AI models and a data science platform that enables Rentokil to derive significant value from AI, from machine learning to gen AI and beyond, and ensuring the quality ...

architecture of AI solutions, in addition to building and running an AI platform to deliver business-specific Use Case solutions. Collaborating with the Data Platform to team in ingesting and transforming data from multiple systems, modeling data, and engineering data marts to create reusable data … operating a company wide agentic AI solution platform to help scale up AI capabilities across all functions and regions. Building AI models and a data science platform that enables Rentokil to derive significant value from AI, from machine learning to gen AI and beyond, and ensuring the quality ...

Faculty is seeking a Principal Data Scientist for its Defence team in the United Kingdom. You will own complex ML delivery, shape sector strategy, and act as a technical authority while mentoring teams. On-site 2–4 days a week with client sites and flexible Remote work within … available. You will lead scoping, technical selling, and client management to deliver high-impact AI solutions, including Generative AI and LLM applications, across strategic projects. #J-18808-Ljbffr ...

Faculty is seeking a Principal Data Scientist to lead ML delivery within our Defence team in the UK. You will own strategic projects, guide technical strategy, and mentor data scientists while engaging with clients on high-stakes engagements. You will translate challenges into roadmaps, write robust ...

Jet2.com Limited is seeking an experienced Senior Data Scientist to join its Data Science team in the UK. You will deliver high-impact data science initiatives and collaborate with colleagues across marketing, pricing, customer insights and operations to optimise business processes. You will apply … statistical modelling, explain results to stakeholders, and drive data-driven decision making while keeping up to date with evolving technologies and governance requirements. #J-18808-Ljbffr ...

Lloyd’s Register Foundation is seeking a Senior Data and Insight Scientist to lead analytical work across flagship programmes, bridging technical depth with clear, accessible insights for decision-makers. The role combines advanced analytics, applied statistics, and high-quality communication to strengthen the Foundation’s evidence ...

Haleon plc. seeks a senior data scientist to join the Global AI & Data Science team in London. You will build ML models for marketing, commercial and digital, and work with data engineers and ML engineers to deliver high-impact data-driven solutions. You will deploy ...

validation of credit risk (e.g., underwriting and limit management), finance (provisioning, offloading, profitability), and other models, rigorously reviewing and challenging all aspects: conceptual soundness, data integrity, feature engineering and selection, training and testing, regulatory compliance and fairness, documentation, deployment, monitoring and business impact. Independently replicate the model development process … where necessary and conduct challenger analyses. Collaborate closely with first-line data scientists, machine learning (ML) engineers, and product stakeholders to understand models’ business context and ensure transparent communication of model risks and validation findings. Provide actionable recommendations and formally document validation outcomes in line with internal model governance ...

timePosted: 2026-06-29What you will do We are rebuilding our fraud detection systems from the ground up, and we are looking for data scientists who want the full mandate to do it right, from raw data to production model, at a scale that affects hundreds … demanding problem spaces at Klarna. You will build best-in-class machine learning systems from the ground up, owning the complete pipeline from raw data through feature engineering, model design, training, and real-time production deployment. A central part of this role is converting some of Klarna's existing ...

world's money.For everyone, everywhere.More about our mission and what we offer.Job DescriptionWe are seeking a talented quantitative developer to join our Treasury Markets Data Science team. This role focuses on owning and operating the production infrastructure behind our FX pricing, risk, and trading systems with the opportunity … aspects.Your work will have a direct impact on Wise’s mission and millions of our customers.About the Role: You'll join the Treasury Markets Data Science team, owning the quantitative infrastructure that powers how Wise manages FX risk across a USD 250bn+ in annual FX volume- serving everyone from ...

1406Location: LondonDiscipline: BI AnalystContact: hello@revoco-talent.co.uk | 0117 440 7810 The role is actually titled as a "Lead", that is due to owning your particular workstream, so you can put your own stamp on things, it is not leading a team however. It can suit people with as little … close to London bridge. (Some weeks may be one day) You 'll be working on some really interesting initiatives and have the below responsibilities ➡️Lead the delivery of analytical and machine learning workstreams, ensuring models and outputs are robust, repeatable, and aligned with business needs. ➡️Collaborate with subject matter ...

numerical, categorical, and temporal features, making deliberate decisions about vocabulary size, sequence length, and information compounding. Your work spans the full model lifecycle, from data preparation through to production and you will translate research decisions into systems that set the direction for how machine learning operates across Klarna. … have Experience with Triton kernels or GPU-level optimisation Broader ML background spanning areas beyond deep learning Experience with large-scale transactional or financial data Background in ML infrastructure or MLOps Please include a CV in English Curious to learn more about Klarna and what it's like ...

developing predictive models to calculate Customer Lifetime Value (LTV), aiding in the prioritization of marketing efforts and resource allocation. You will model customer behaviour data and product usage so we understand which audiences to target and howYou will work closely with Data Analysts and you will help them … Wise but you’ll have the freedom to make your own calls.Be part of a diverse team - You will work in a team of Data scientists, Analysts and MarketeersBe part of our mission to make money without borders the new normalAdditional InformationFor everyone, everywhere. We're people building money ...

based systems both offline and online. Build and scale A/B testing to measure real customer impact and guide product decisions. Analyse conversation data to uncover opportunities and collaborate with product, engineering and design teams to shape the assistant’s behaviour. #J-18808-Ljbffr ...

Official Role Title: Lead Portfolio Analyst 📌 Location: London or Hampshire (2 days a week in-office) 📌 Salary: £80k - £105k + 10% bonus Who are they? A well-backed InsurTech leading the UK short-term motor insurance market, one hour to one month cover, at serious volume. They feel like … risk signals at point of quote Working with the panel of underwriters to improve how they assess and select risk Exploring non-traditional data sources to sharpen underwriting decisions Getting models into production so they're shaping live underwriting decisions every day Helping junior analysts develop their thinking ...

hackajob is partnering directly with Rentokil Initial to hire for this role. As part of our Group AI Team, we are scaling our internal capabilities to deliver cutting-edge, production-grade AI solutions across our ...