201 to 224 of 224 Senior Data Scientist Jobs in London

have the flexibility to work from our London office or remotely from elsewhere within the UK. About the role As a Principal Data Scientist at Faculty, you will drive high impact transformation within our Defence team by taking ownership of complex machine learning delivery and sector specific strategy. … deliver exceptional value. Balancing deep business knowledge with advanced analytical skill, you will shape cutting edge AI solutions, build robust client partnerships, and mentor data scientists across ambitious initiatives. What you'll be doing: Owning and growing a strategic portfolio of machine learning work specifically tailored to the Defence ...

Monzo is hiring a Lead Data Scientist to accelerate user engagement and build the bank of the future. You'll shape data strategy, enable real-time analytics, and empower teams with self-serve insights in Looker across Borrowing, Growth, Payments, FinCrime, Wealth and Core squads. The role ...

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 … 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 ...

create and nurture the experiences under the PlayStation brand, a name synonymous with entertainment excellence and creativity.Role Overview:At PlayStation, Data Science plays a critical role in shaping how we invest in, retain, and delight our global player base. Understanding why those players spend, stay, and engage … example.Turn causal understanding into concrete proposals, and respond with rigorous answers when the platform needs them.Communicate assumptions, methods, and conclusions clearly enough that senior technical and commercial audiences can act on them with confidence.What We're Looking For:You think in counterfactuals. You instinctively separate incremental effect from what ...

create and nurture the experiences under the PlayStation brand, a name synonymous with entertainment excellence and creativity. Role Overview: At PlayStation, Data Science plays a critical role in shaping how we invest in, retain, and delight our global player base. Understanding why those players spend, stay, and engage … Turn causal understanding into concrete proposals, and respond with rigorous answers when the platform needs them. Communicate assumptions, methods, and conclusions clearly enough that senior technical and commercial audiences can act on them with confidence. What We're Looking For: You think in counterfactuals. You instinctively separate incremental effect ...

experiments, and you know the common failure modes (peeking, underpowered tests, bad randomisation, metric gaming) and how to design around them. Strong instrumentation and data governance instincts. You've defined tracking plans, and worked with engineering teams on event taxonomy. Experience working in AI-native product orgs. ...

Goodnotes is seeking a senior Product Analytics professional to embed in a small, fast-moving team in London. You will quantify how features move the business, design robust experiments, and build instrumentation to measure impact from day one. You will also create self-serve frameworks so product teams ...

Faculty in London is seeking a Lead Data Scientist to define the technical direction and ensure high-quality, scalable delivery of our most challenging projects. You will mentor cross-functional teams and shape roadmaps to drive commercial impact. You will oversee end-to-end delivery, manage risk … foster close customer relationships while advancing best practices across the data science organisation within a hybrid working environment. #J-18808-Ljbffr ...

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 … through reports, publications and client discussions. This senior hands-on role requires independent project leadership from concept to delivery, with #J-18808-Ljbffr ...

DescriptionAre you ready to partner up with our business and deliver data-driven people insights to benefit decision-making Our People Planning & Analytics team is looking for a new colleague who wants to contribute with solid experience in data analysis, statistical modelling and machine learning to contribute towards … forecast future talent needs, attrition rates, and identify potential recruitment challenges.Collaborate with HR and recruitment teams to identify opportunities for process optimization through data-driven recommendations.Analyze end-to-end recruitment workflows to improve efficiency, reduce time-to-fill, and enhance candidate experience.Communicate findings and insights in a clear ...

DescriptionAre you ready to partner up with our business and deliver data-driven people insights to benefit decision-making? Our People Planning & Analytics team is looking for a new colleague who wants to contribute with solid experience in data analysis, statistical modelling and machine learning to contribute towards … forecast future talent needs, attrition rates, and identify potential recruitment challenges. Collaborate with HR and recruitment teams to identify opportunities for process optimization through data-driven recommendations. Analyze end-to-end recruitment workflows to improve efficiency, reduce time-to-fill, and enhance candidate experience. Communicate findings and insights ...

hackajob is partnering directly with Simply Business to hire for this role. Who Are We? We insure small businesses and enable big dreams - not just for our customers, but for our people and communities too. ...

Haleon in the UK is hiring for a role in our Global AI & Data Science team to design, develop and deploy data science models across Marketing, Commercial and Digital, delivering impactful ML solutions. You will collaborate with product owners, data engineers and ML engineers, write production code ...

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 ...

LondonData Science – Data Science/Employee - Permanent/HybridOur StoryHello there. We’re Zopa.We started our journey back in 2005, building the first ever peer-to-peer lending company. Fast forward to 2020 and we launched Zopa Bank. A bank that listens to what our customers don’t like … thrive here at Zopa, so join us, and make it count. Want to see us in action? Follow us on Instagram @zopalifeThe team Our Data Science team helps Zopa make better credit decisions. We partner closely with Credit Strategy, Product and Engineering to turn ambiguous business problems into robust ...

expand our addressable market safely, pushing conversion and profitability up together.Scientific integrity is non-negotiable. Model improvements need to be statistically significant, with no data leakage and no bias hiding in the numbers. You'll turn technical findings into business trade-offs leadership can act on, mapping … on.You'll stand out if you've worked on highly automated lending, price sensitivity modelling, or Customer Lifetime Value.What this role could turn intoSenior Data Scientists here tend to grow into Staff or leadership roles with broader influence over risk strategy and team direction. We're building a quantitative ...

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 ...

bring your ambition to work every day, which is why, at British Airways the sky is never the limit.The role:Principal Product Data ScientistYou’ll be part of the Operations Delivery Intelligence (ODI) directorate, working within integrated operations product squads to build and embed industrialised decision‐support software products. … techniques to real‐world decision‐making challenges across the airline.What you’ll do:Act as the technical owner of one or more production‐grade data science product codebasesLead the end‐to‐end delivery of decision‐support software across the full product lifecycleUnderstand complex operational business problems ...

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 … This is a rare role and they know it. They're looking for someone who brings genuine breadth across underwriting analytics, pricing, and data science, someone who understands how insurance portfolios actually behave and can work credibly with underwriters, not just alongside them. Your background might span underwriting analytics ...

mentoring more junior peers They're pretty cloud agnostic, Azure would be great though. Looking for the below skill set: ✅Strong experience delivering applied data science or ML projects end‐to‐end, including feature engineering, model selection, evaluation, and iteration. ✅Strong experience developing solutions in Python, with good practices ...

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 ...

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 … 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 without borders — without ...

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 ...