26 to 49 of 49 Lead Data Scientist Jobs in London

Description As an innovative data scientist in . Morgan Asset Management's Data Science team, you will design and implement ML solutions to enhance investment processes, elevate client experiences, and streamline operations. Initially, you will be focused on developing solutions to support our ESG and Stewardship functions … search and principals-based reasoning with LLMs. Your technical expertise will drive impactful results, and you’ll play a key role in shaping our data science capabilities. You’ll thrive in a collaborative culture that values hands-on problem solving and continuous learning. Your technical expertise will drive impactful ...

Oritain is seeking a Lead Statistical Data Scientist to provide technical leadership for statistics and machine learning, guiding projects and shaping the data science capability. You’ll mentor other data scientists and collaborate with science, engineering, product, and commercial teams to deliver real-world impact. … role offers ownership, influence, and a clear path to scale data science across the organization, with hybrid work options in London and global collaboration across offices. #J-18808-Ljbffr ...

c0be-44e0-8717-d87167598b38Location: LondonSalary: 81425 - 116438 GBPType: Full timePosted: 2026-07-21Contact: ivy.chiang@klarna.comWhat you will do As a Senior Data Scientist within our Open Banking team, you will build the analytical foundation that turns raw bank account data into reliable, actionable insight for fraud … develop machine learning models that estimate probability of default and produce fraud scorecards. You will own the full lifecycle of these models, from raw data through to production deployment, working closely with engineering to operationalize your work at scale. You will also help monitor model performance, impact, and acceptance ...

Stott and May is seeking a Lead Product Data Scientist to drive AI, machine learning and optimisation initiatives in a hybrid West London setting. The role combines hands-on modelling with leadership of data science and engineering teams to deliver data-driven products that improve ...

systems that understand behaviour, automate investigations and help our customers stay ahead of increasingly sophisticated piracy networks. We're looking for someone to help lead that journey. The opportunity As Lead Applied AI Data Scientist, you'll combine hands-on AI development with technical leadership. … work directly with customers to understand complex operational challenges before turning those ideas into production AI solutions. You'll mentor other data scientists, influence our technical direction and help shape the future of AI across Friend MTS. This is not a management role. It's a technical leadership role. ...

Mitra Bio Ltd in London seeks a Principal Data Scientist to drive precision biomarker projects in skin health, combining biology, bioinformatics and AI to identify novel biomarkers and build predictive models. You will collaborate with skincare and pharmaceutical partners, translate complex datasets into actionable insights, and present findings ...

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 ...

Friend MTS is seeking a Lead Applied AI Data Scientist to drive production AI solutions and provide technical leadership. You will work directly with customers to understand complex challenges and mentor other data scientists, shaping the technical direction of our AI initiatives. The role focuses ...

leading project solutions provider in the UK is seeking a Senior Data Scientist to drive innovation through data and AI. You will design and implement data science solutions and develop Generative AI applications to transform data into actionable intelligence across various sectors. The ideal candidate ...

Faculty is seeking a Principal Data Scientist for its Defence team in the UK. You will own complex ML delivery, shape sector strategy, and mentor data scientists while building trusted client partnerships. The role requires UK Security Clearance eligibility, with on-site work 2–4 days weekly ...

Talk to customers and align on success criteria and measurement Use raw, real-world data to form clear, actionable insights Optimise agent performance for each onboarded customer Own the optimisation flow from identifying opportunities through testing hypotheses, running experiments, delivering improvements, and demonstrating value Analyse data … scope independent initiatives Turn ad hoc analyses and findings into scalable self-service tooling for teammates and customers Requirements Significant data science experience at a lead/staff level Experience building robust data pipelines Fluency in SQL and Python Strong understanding of statistical methods Background working ...

Consulting is seeking a Senior Data Scientist to lead the design and delivery of AI solutions and advanced analytics for clients across industries. You will mentor junior team members and shape IBM’s data science capability while collaborating with engineers and client stakeholders. You will drive … engagements, translating business challenges into data-driven insights, and stay ahead of emerging AI methodologies. A strong background in NLP/ML and cloud platforms is required. #J-18808-Ljbffr ...

Faculty in London is seeking a Senior Data Scientist to lead high-impact AI safety projects and shape upstream evaluation standards. This role demands hands-on scientific thinking, strong coding in Python, and leadership across delivery teams. You'll design evaluation frameworks, build robust software architectures, mentor ...

National Geographic is looking for a Senior Data Science Engineer to lead projects in the Trading Intelligence Team. This role involves developing statistical models and collaborating across teams to enhance decision-making through data science. The candidate should have a Bachelor's degree in a relevant field … proven experience in data science, strong machine learning foundations, and proficiency in Python or R. Knowledge of Kubernetes and Kafka is desirable. #J-18808-Ljbffr ...

Elsevier seeks a Senior Data Scientist I to lead development and evaluation of advanced search and generative AI systems. You will own complex problem areas end-to-end, driving rigor in evaluation and contributing to retrieval and RAG system direction. This role suits someone with deep hands ...

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 ...

Hims & Hers in London is seeking a Senior Data Scientist to own end-to-end data projects, translating complex problems into robust ML models and production-ready code with strong autonomy. You will partner with Product, Engineering and Business teams to optimize operations, marketing and the customer … experience, while upholding engineering standards and mentoring junior data scientists, contributing to scalable data platforms and governance. #J-18808-Ljbffr ...

across channels. The opportunity Become one of the top contributors to bring the new product vision live. Work end to end across metric design, data and modeling, experimentation, and product integration. What you’ll do Build components of new products that turn real customer signals into timely actions … impact; embed sound statistical practice; and turn results into simple, trusted narratives that guide product and commercial decisions. Productionize and scale thoughtfully: ship durable data and model workflows in collaboration with the engineering team, ensure quality and monitoring, and document decisions so the system is reliable, explainable, and easy ...

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 ...

building a foundation model that turns that sequence into a single, reusable representation of the customer — a transformer trained specifically on Klarna's own data, built in-house rather than adapted from an existing public model, because the patterns it needs to learn don't show up in general … features, deciding on vocabulary size, sequence length, and how information compounds across a sequence. You'll own the model lifecycle end to end, from data preparation and training through to serving it in production. You'll translate research decisions — architecture choices, tokenisation trade-offs — into production systems that ...

leading health AI company is seeking a Staff Data Scientist to shape AI-driven population health management. The role requires 8+ years of data science experience, proven leadership in applied research, and expert-level proficiency in Python. You will collaborate closely with Product, Engineering, and Clinical teams ...

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 ...

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 ...

split time between heads-down analysis and leading projects, helping shape live decisions on quotes and policies. Your background in underwriting analytics, pricing, or data science will be crucial. Proficiency in Python or R and SQL is required, with GBMs and fraud analytics as strong assets. #J-18808-Ljbffr ...