351 to 375 of 401 Data Scientist Jobs in London

Data Scientist - Senior Associate - Applied AI & Machine Learning

Location
Greater London, England, United Kingdom
technology? At JPMorgan Chase, you’ll help drive innovation in investment decision‐making and client engagement. You’ll work with advanced analytics, enterprise data platforms, and generative AI solutions that power our global business. We offer career growth, mobility, and the opportunity to collaborate with talented professionals across … will help us deliver secure, scalable, and measurable solutions for our clients. As an Applied AI & Machine Learning Senior Associate in the Asset Management Data Science Team, you will build the technical foundation for intelligent investor tools. You will design context-management capabilities, develop LLM-powered applications, and create ...

Data Scientist - Senior Associate - Applied AI & Machine Learning

Hiring Organisation
JP Morgan Chase
Location
London, UK
Employment Type
Full-time
technology? At JPMorgan Chase, you'll help drive innovation in investment decision-making and client engagement. You'll work with advanced analytics, enterprise data platforms, and generative AI solutions that power our global business. We offer career growth, mobility, and the opportunity to collaborate with talented professionals across … will help us deliver secure, scalable, and measurable solutions for our clients. As an Applied AI & Machine Learning Senior Associate in the Asset Management Data Science Team, you will build the technical foundation for intelligent investor tools. You will design context-management capabilities, develop LLM-powered applications, and create ...

Senior Data Scientist

Location
Greater London, England, United Kingdom
Automated Valuation Model to estimate the value of residential properties). We are always looking to innovate and better identify and understand what data makes a difference to property value and risk and how to incorporate this into our models and products. You’ll be at home … increase the accuracy of our property valuation model and improve our AI capabilities across our model and product range. Work collaboratively with fellow data scientists, ML Engineers, analysts, product managers and data engineers. Meeting with stakeholders to translate business needs into data science problems. ...

Data Scientist & Machine Learning Researcher

Location
City Of London, England, United Kingdom
Description This role is within the Strategic Research Group (SRG). The SRG are a team of Data Science, Machine Learning and AI specialists who develop novel AI solutions to mission focussed problems. In this role you will be responsible for the technical development of AI/ML projects … week on-site). You must already hold or be able to gain SC clearance and eDV clearance (once started). Responsibilities: Develop, novel data science solutions, contributing significantly to machine learning projects as part of a team, with some guidance and direction from seniors. Bring experience in developing ...

Principal Product Data Scientist

Location
Greater London, England, United Kingdom
Blue Light Card. Individually great, together unstoppable The Role and the Team This is a brand new Principal role, reporting to the Data Director. You'll be a subject matter expert and influential voice on experimentation and product insight, setting the standard for how we test, learn and scale … what works. Beyond your own analytical output, you'll serve as a technical and strategic anchor for the Product Data Science team, mentoring colleagues, shaping best practice, and ensuring the quality and impact of data analytics work across the organisation. This role is the natural progression ...

Senior Data Scientist, Financial Markets Analytics — Hybrid

Location
Greater London, England, United Kingdom
Citi Markets in London is seeking a data analytics professional to translate complex data into actionable business insights. You will work across desks and partners to drive informed decision-making and optimise data quality through cross-platform analysis. The role requires 5–8+ years of experience, advanced ...

Senior Data Scientist - Fraud Model Validation

Hiring Organisation
Klarna
Location
London, UK
Employment Type
Full-time
features. Your job is to make sure those models actually hold up: independently reproducing results, building challenger models, and stress-testing every assumption from data pipeline to production deployment before a model earns trust at scale. This is a second-line position, reviewing methodologies built with scikit-learn, LightGBM … code and surface risks automatically, so validation keeps pace with how fast first-line teams ship. The scope spans the full model lifecycle: data integrity and feature engineering, conceptual soundness, deployment design across Docker, Jenkins, and AWS, and the monitoring and drift detection that keeps a model honest after ...

Data Scientist - Payment Success Software engineering London

Location
Greater London, England, United Kingdom
started. How you’ll make an impact Deliver expertise and guidance to our key merchants by crafting optimal payments strategy. Conduct deep-dive exploratory data analysis to uncover insights and anomalies Conduct experiments and A/B tests to improve performance, including ML based solutions. Develop cutting-edge automation … Fintech or Consultancy, using analysis to make business recommendations A huge advantage if you have previous experience working as Payment Analyst/Expert Data driven approach, by clearly defining success metrics and measuring progress against them SQL/Python knowledge to extract & analyse large data from our Data ...

Senior Retail Data Scientist - Growth & Insights

Location
Greater London, England, United Kingdom
Fractal Analytics UK Limited in London is seeking a highly analytical senior decision scientist to bridge data science and business operations. You will partner with sales, retail operations, product and marketing to uncover insights that drive performance across our retail channels, including stores, e-commerce and omnichannel experiences. … will translate complex data into clear insights for senior leadership, build dashboards for real-time KPI visibility, and support growth opportunities, #J-18808-Ljbffr ...

Data Scientists — Flexible Work & Growth Opportunities

Location
Greater London, England, United Kingdom
leading technology company is seeking a Data Scientist to develop data pipelines and machine learning models. This role involves working collaboratively within product squads and encompasses comprehensive responsibilities in optimizing decision-support products. Candidates should have strong knowledge of machine learning techniques, be proficient in Python ...

Data Scientist - Defence

Location
City Of London, England, United Kingdom
London, Greater London, England, United Kingdom · Data Science C3 AI (NYSE: AI), is the Enterprise AI application software company. C3 AI delivers a family of fully integrated products including the C3 Agentic AI Platform, an end-to-end platform for developing, deploying, and operating enterprise AI applications … Generative AI, a suite of domain-specific generative AI offerings for the enterprise.Learn more at: C3 AI As a member of the C3 AI Data Scienceteam ,you will work with some of the largest companies on the planet helping them build the next generation of AI-powered enterprise applications ...

Data Scientist - Payment Success

Hiring Organisation
Checkout.com
Location
London, UK
Employment Type
Full-time
getting started. How you'll make an impactDeliver expertise and guidance to our key merchants by crafting optimal payments strategy. Conduct deep-dive exploratory data analysis to uncover insights and anomaliesConduct experiments and A/B tests to improve performance, including ML based solutions. Develop cutting-edge automation tools … Fintech or Consultancy, using analysis to make business recommendationsA huge advantage if you have previous experience working as Payment Analyst/Expert Data driven approach, by clearly defining success metrics and measuring progress against themSQL/Python knowledge to extract & analyse large data from our Data WarehouseGood ...

Senior Data Scientist/Senior Research Software Engineer

Location
Greater London, England, United Kingdom
Institute’s Research Engineering Group work to realise cutting edge research as professionally usable software tools and to apply these to address real-world data science and modelling challenges. The Group’s staff are research software engineers and research data scientists. We note the considerable overlap between these … embrace the breadth of interdisciplinary skills and diversity of approaches entailed in these fields. We are open to candidates with either a Research Data Science or Research Software Engineering background. The successful candidate will be appointed to the role that best aligns with their skills, experience and interests. Role ...

Data Scientist

Location
Greater London, England, United Kingdom
what stores sell. The intelligence layer exists to test that claim, house by house, and to make it useful. It joins content and quiz data from the platform to sales data from the maisons, at POS, market and country level. This role owns the models inside it. … suggestions were worth taking. You build them with the engineers in Shenzhen, who ship them into the product. What you will do Join data of very different shapes and tempers: platform events, quiz results, POS feeds, market and country data. Build the correlation work that gives each maison ...

Senior Data Scientist

Location
Greater London, England, United Kingdom
Overview At Deliveroo we have an outstanding data science organisation with a mission to enable the highest quality human and machine decision‐making. We work throughout the company—in product, business and platform teams—using analysis, experimentation, causal inference and machine learning techniques to help make better decisions … improve data literacy across Deliveroo. Responsibilities Which markets/cities should we enter next? How can we incentivise good rider behaviour? What is the impact of exclusive deals we have with restaurants? How do we optimise our compensation policy to keep our customers happy and ordering with Deliveroo? What ...

Senior Data Scientist - Marketing

Location
Greater London, England, United Kingdom
global scale, and building something that truly matters for millions of people, every day. Meet the team At Preply, we're growing a talented Data Team to empower top-notch decision-making across our organization. Our team collaborates closely with various other chapters - including product, business, and platform - leveraging … causal inference, and machine learning. You’ll be embedded in cross-functional teams, partnering with our MarTech Product Manager, Marketeers, Tech Leads, and the Data Strategy team. Check out the Tech Radar to see the tools and technologies we love using at Preply! What you’ll be doing ...

Senior AI & ML Data Scientist (LLM & Investment Tech)

Location
Greater London, England, United Kingdom
JPMorgan Chase & Co. in London seeks an Applied AI & Machine Learning Senior Associate in the Asset Management Data Science Team to design scalable, secure LLM-powered investment tools and robust data pipelines. You will collaborate with investment, data science, engineering, product, and control teams to translate complex ...

Lead Data Scientist - Credit Risk Modeling

Location
Greater London, England, United Kingdom
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 … temporal 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 ...

Lead Data Scientist - Credit Risk Modeling

Hiring Organisation
Klarna
Location
London, UK
Employment Type
Full-time
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 ...

Senior Data Scientist - Marketing Analytics & MMM Lead

Location
Greater London, England, United Kingdom
Preply is building a world-class Data Team to empower decision-making across our organisation. You will own Marketing Mix Modeling end-to-end, expanding today’s US model to a global, hierarchical platform and turning outputs into automated budget guidance for marketing and finance. You will collaborate with ...

Senior Data Scientist

Location
Greater London, England, United Kingdom
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 ...

Lead Data Scientist - ML & AI Solutions Architect

Location
Greater London, England, United Kingdom
Zohorecruit in London seeks 2 Data Scientists to define, architect and lead delivery of ML/AI solutions. The roles cover the full data science lifecycle, exploratory analysis, and translating business problems into scalable model solutions for stakeholders. Successful candidates will run proofs of concept, develop and monitor ...

Data Scientist, Fintech Payments (ML/Analytics, Hybrid)

Location
Greater London, England, United Kingdom
Checkout.com is seeking an experienced Payments Data Analyst to join our growing analytics team in London. You will translate merchant data into actionable insights, drive experiments, and build automation to monitor merchant performance. You’ll work with SQL and Python to query large datasets from our data ...

Senior Data Scientist & ML Engineer — Passenger Dispatch

Location
Greater London, England, United Kingdom
Open Data Science is looking for mid-level and senior Data Scientists/ML Engineers to join the team at Wheely. You'll be responsible for the entire process, from ideation to model implementation, tackling challenging tasks like developing driving models and pricing journeys. The position is located ...

Production Data Scientist, AI Infra & Optimization

Location
Greater London, England, United Kingdom
CoreWeave is building an ambitious data science platform in the Monolith Data Science team, embedding advanced statistical models into production to improve cluster reliability and cost efficiency. This role sits at the intersection of data science and production systems in a fast-paced AI infrastructure environment. ...