326 to 350 of 361 Senior Data Scientist Jobs in the UK

analysis that shows how well they perform for each customer. What you'll do Train, tune and ship classifiers for prompt injection, data exfiltration, policy violations and other risky AI activity. Design low-latency models, including distilled and small models and rules-plus-ML ensembles. Analyse production telemetry … production, with quality metrics tracked per customer. You've reduced false positives or latency measurably without losing detection quality. Production data feeds a regular cycle of model improvements. About you: essential 5+ years in applied ML or data science, with models shipped to production. Strong Python, PyTorch ...

Morgan Chase in Glasgow seeks a Lead Data Scientist in Governance and Controls Technology. You will design and deliver trusted AI/ML products at scale, partnering with teams across the firm to drive business impact, resilience, and secure delivery. You will work with LLMs, agentic frameworks, LangChain ...

Monzo is seeking a Lead Data Scientist to help build the bank of the future. You will lead the data strategy, drive experimentation practices, and set cross-functional standards with product, engineering, design, and research to iterate on product ideas. The role supports remote/hybrid work ...

Klarna is seeking a Lead Data Scientist to shape next-generation consumer-level credit scoring and portfolio valuation models. You will design and maintain real-time PD models, calibrate frameworks, and ensure regulatory fairness while exploring LLM-based feature engineering. You will collaborate with cross-functional teams, mentor ...

leading consulting firm is seeking a Principal Data Scientist to innovate within a prestigious brand. This role offers a unique chance to shape the approach to data science in a greenfield environment, impacting the organization significantly. Ideal candidates have fluency in Python and proven experience in solving ...

Earnix is seeking a highly experienced Senior Insurance Data Science Consultant to join our analytics team in London. You will lead pricing strategy discussions, translate complex results for executives, and shape pricing decisions across multiple lines of business. You will build predictive models, deploy scalable analytics, and demonstrate ...

QIMA is launching a new Life Sciences programme to develop virtual pharmacology models. We seek a Lead Data Scientist to own the initiative, assess datasets, build proof‐of‐concept models, and prepare solutions for internal and client use. You will work with scientists, IT and AI experts across … with potential travel to labs in France, Northern Ireland and Germany. The role is hands-on and requires a PhD, 8–10 years of data science experience, and a proven ML track record on complex #J-18808-Ljbffr ...

JPMorgan Chase & Co. in London is seeking an Associate, Data Science to design and deliver AI and analytics solutions across Risk Management and Compliance. You will pilot scalable tools, collaborate with Product, Engineering, and business partners, and embed AI into workflows to deliver measurable value and governance. Focus areas ...

easyJet is seeking a Principal Data Scientist in Optimisation Engineering to lead a cross-functional team delivering decision-support software for disruption management and crew rostering. You will translate complex operational problems into scalable solutions, guiding architecture, delivery, and reliability across services and data pipelines. The role ...

Capital One Europe is seeking a Lead Data Scientist/Deep Learning Practitioner to lead the development of proprietary deep learning models for underwriting. You will drive the use of multi‐modal data and advanced neural networks to improve predictive power and deliver actionable customer insights. ...

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 on building ...

CoMind is building a non-invasive neuromonitoring platform aimed at transforming brain health diagnosis and treatment. As Principal Data Scientist, you will set methodological direction, drive the most complex problems, and lead data science best practices with a strong emphasis on uncertainty and calibration. You will collaborate ...

bet365 Group seeks a Lead Data Scientist to spearhead probabilistic models powering real-time betting markets in Manchester. You will build advanced pricing models for sports products and in-play decisions using state-of-the-art ML techniques. The role offers hybrid working within the Quantitative Analysis team ...

Xcede partners with a PE-backed legal services group to roll out a centralized AI platform across the UK. You’ll be the first data scientist, building the function and setting its direction. You’ll prototype LLM solutions, take models to production, map data across matter, client ...

Faculty is seeking a Lead Data Scientist to steer upstream AI safety research and evaluation standards, partnering with Frontier Labs to design novel experiment frameworks. You will mentor teams, align technical work with client strategy, and drive rigorous, responsible AI practices across high-stakes engagements. You will champion ...

company where you’ll be empowered to envision its most powerful applications, and to make them happen. About the role As a Lead Data Scientist at Faculty, you will drive the scientific direction and architectural rigour of upstream AI safety and evaluation standards. Partnering directly with Frontier Labs … solutions and evaluation standards to Frontier Labs Architecting core scientific experiment designs and robust software infrastructure for high-impact safety engagements Guiding and mentoring data scientists, nurturing technical capabilities, and fostering an inclusive, high-performing team culture Partnering with commercial leads and executive stakeholders to scope technical work, assess ...

leading AI consultancy in Greater London is looking for a Principal Data Scientist to lead complex projects and mentor a talented team. The ideal candidate has a strong background in machine learning, particularly in Generative AI, and extensive experience within financial services. Responsibilities include serving as a technical ...

Bet365 is seeking a Lead Data Scientist to spearhead probabilistic modeling for real-time betting markets in a hybrid work setup. The role emphasizes building and validating sophisticated models to price sports bets and decisions using state-of-the-art ML techniques. You will mentor juniors, collaborate with … trading and software teams, and drive data-driven insights across large datasets to enhance betting products. A strong quantitative background and leadership experience are essential. #J-18808-Ljbffr ...

BDPN is seeking a data science lead in London to own data capabilities, shaping the roadmap for marketing and retention and delivering scalable, production-ready data solutions. You will collaborate with engineering, marketing, sales and product to define KPIs, run experiments with new algorithms and surface insights … that drive business impact. Maintain data infrastructure (BigQuery, dbt, Fivetran) and foster a data-driven culture, advocating improvements to tools and data architecture. #J-18808-Ljbffr ...

OpenDigital Limited is seeking a Lead Data Scientist in London to own and evolve the core ML models driving the product. You’ll shape the platform by designing, deploying and iterating predictive models that optimise revenue and user value while working closely with the CTO and founders. ...

Proactive Appointments Ltd. is seeking an experienced Lead AI Data Scientist for an 18-month fixed-term position to embed AI at scale across the group. You will work with SMEs, analysts and engineers to prototype, productionize and monitor AI solutions, while building a growing data science ...

Fospha in London is seeking an experienced Data Scientist to own production-scale models for marketing measurement. You will lead larger projects end-to-end, selecting modelling approaches, and communicating complex results to clients and internal teams. The role involves ownership of models from methodology to production, mentoring ...

Our client is a leading global investment bank. JOB DESCRIPTION Job Summary Bring your expertise to our client. As part of Risk Management and Compliance, you are at the center of keeping our client strong ...

QIMA is launching a new programme to develop virtual pharmacology models. We seek a Lead Data Scientist – Virtual Models to own the programme, build proof-of-concept models and prepare them for client use. The role combines data science with biology, requiring collaboration with scientists ...

Job Description Our client is a leading global investment bank. JOB DESCRIPTION \ N \n Job Summary \ N Bring your expertise to our client. As part of Risk Management and Compliance, you are at the center ...