Senior Data Scientist Jobs in the City of London

1 to 25 of 32 Senior Data Scientist Jobs in the City of London

Senior Data Scientist

City of London, London, United Kingdom
Paradigm Tech
Senior Data Scientist | Lead Data Scientist | Senior Data Engineer | Lead Data Engineer | Data Architect I am currently working with a brilliant consultancy with deep expertise in their field of Data and Cyber Security solutions, predominantly with Central Government organisations but they also have strong ties with Defence and Telco. They … years and as a result they are involved in some of the most challenging yet rewarding large scale technical projects in the country. They are currently looking for a Senior Data Scientist, this will be a blend of client facing skills aka, the ability to understand business problems, create a novel models/solutions to help that More ❯
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Senior Data Scientist

City of London, London, United Kingdom
Harnham
Senior Data Scientist UK – Hybrid Up to £80,000 The Company A leading UK telecoms company is expanding its Product and Marketing Data Science teams and is looking for a Senior Data Scientist to help drive data-driven decision-making. This is a great opportunity to work on high-impact projects that … directly influence customer engagement, marketing effectiveness, and business growth. The Role As a Senior Data Scientist, you will: Develop and deploy predictive models to enhance customer targeting and engagement. Work on churn prediction to help improve customer retention strategies. Apply customer segmentation techniques to optimise marketing campaigns. Build marketing attribution models to measure and improve campaign performance. … Collaborate with stakeholders across the business to translate insights into actionable strategies. Your Skills & Experience We’re looking for a Data Scientist with: Strong experience in predictive modeling, customer analytics, or marketing data science. Proficiency in Python (Pandas, NumPy, Sci-Kit Learn) or similar tools. A proven track record of delivering impactful, data-driven solutions. Strong More ❯
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Senior Data Scientist

City of London, London, United Kingdom
Harnham
Senior Data Scientist London, Remote £80,000-£100,000 I’m working with a mission-driven healthcare technology company that leverages real-world data to improve health outcomes and equity. They focus on understanding the complex social and behavioral factors that influence healthcare decisions, going beyond traditional clinical data. The company has evolved from a nonprofit … origin into a fast-growing, globally distributed tech organization. They generate revenue through consulting with pharmaceutical clients and by offering innovative data products aimed at transforming healthcare strategies. The Role As a Senior Data Scientist, you will be a key technical leader on their core data products. Your primary focus will be building and deploying … predictive machine learning models using large-scale, complex datasets — including consumer data, survey data, and extensive geospatial information. You will take ownership not only of modeling and metric development but also of the end-to-end ML lifecycle, including deployment and monitoring using modern MLOps frameworks. Collaboration with data engineers and cross-functional teams is essential, as More ❯
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Senior Data Scientist - Consumer Behaviour – exciting ‘scale up’ proposition

City of London, London, United Kingdom
Datatech Analytics
Senior Data Scientist - Consumer Behaviour – exciting ‘scale up’ proposition London office hybrid 3 days per week Salary negotiable dep on experience to £90,000 + stock options Job Reference J12960 Please note this client is unable to offer sponsorship so please ensure you have full UK working rights. Measure Protocol are looking for a smart, creative and … dynamic Senior Data Scientist to help shape and mould their approach and products to build the best-in-class consumer data company. At Measure Protocol, they believe in building a team of true owners. That’s why they offer stock options to all employees as part of their compensation package, so you share in the value … a real opportunity to participate in the upside of something meaningful from the ground up . About Measure Measure is building the world’s first ethical and transparent human data marketplace. The world we live in is awash in data: what we watch and wear, who we know, what we do, and how we live our lives. Unfortunately More ❯
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Senior Data Scientist

City of London, London, United Kingdom
Harnham
Senior Data Scientist Hybrid - London 1 day per week Up to £80,000 About the Role We are working with a high-growth performance marketing and technology company who are looking for a new Senior Data Scientist to join the team. You'll be working at the intersection of data, technology, and marketing … you’ll lead the delivery of cutting-edge machine learning, optimisation, and analytics solutions that drive measurable business outcomes. Reporting directly to the Director of Data, you’ll take ownership of high-impact projects across areas such as customer lifetime value, predictive modelling, bidding optimisation, and experimentation, whilst also acting as a data lead for major clients. Initially … hands-on, this role will evolve into a more strategic leadership position, with team management responsibilities (starting with three Data Scientists, growing to five within a year) expected within the first six months. Key Responsibilities Lead and deliver data science solutions across predictive modelling, optimisation, and experimentation. Act as a strategic data partner to key clients, owning More ❯
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Senior Data Scientist

City of London, London, United Kingdom
Harnham
Senior Data Scientist London – Remote Salary range - £70,000-£100,000 depending on experience level About the Role We are looking for a Senior Data Scientist to join a mission-driven team building data-driven solutions that improve outcomes in the healthcare sector. In this role, you’ll design, build, and deploy predictive … models that harness real-world behavioural data to drive impactful insights. This is a hands-on role ideal for someone who thrives in a collaborative, fast-paced environment and is excited by the challenge of applying data science at scale. You’ll work closely with cross-functional teams to operationalize models, support product development, and contribute to a … modern MLOps pipeline. What You’ll Do Develop and deploy predictive models using behavioural and real-world data Translate complex datasets into actionable insights that improve healthcare outcomes Contribute to the full ML lifecycle, from data wrangling and feature engineering to model deployment and monitoring Collaborate with engineering and product teams to ensure models are integrated into production More ❯
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Senior Data Scientist

City of London, London, United Kingdom
Harnham
Senior Data Scientist - Forecasting, Propensity and Segmentation London – Hybrid Up to £80,000 + Benefits About the Role Join a fast-scaling AI-first SaaS company that’s helping major consumer brands turn first-party data into real commercial value. As a Senior Data Scientist, you’ll own the end-to-end delivery … customer segmentation, and commercial uplift—delivering solutions that are accurate, explainable, and production-ready. Key Responsibilities Build machine learning models for forecasting, propensity scoring, and segmentation Own workflows from data wrangling and feature engineering through to deployment and monitoring Operationalise models using MLOps tools in a cloud-native environment Architect datasets by merging structured and semi-structured data … clients to align models with business needs Present insights in a clear, creative, and commercially relevant way Contribute to best practices in experimentation, reproducibility, and code quality Mentor junior data scientists and support the growth of the team We’re looking for someone with: 3–5 years’ experience in a Data Science, AI, or ML-related role Experience More ❯
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Senior Data Scientist

City of London, London, United Kingdom
Harnham
SENIOR DATA SCIENTIST – DIGITAL MARKETING MEASUREMENT £70,000 – £85,000 LONDON – HYBRID THE COMPANY: This fast-growing marketing and data consultancy has built a strong reputation for combining performance media with deep technical expertise. Known for their award-winning culture and rapid client growth, they deliver long-term, high-impact work across paid media, measurement, and … advanced analytics. They operate at the intersection of marketing and data science – with a track record of developing sophisticated experimentation and predictive modelling solutions for major UK brands. This isn’t short-term agency work — they partner closely with clients, often with direct access to raw data and a strong seat at the strategy table. THE ROLE: As … a Senior Data Scientist, you’ll play a key role in leading the delivery of analytics projects across experimentation and predictive modelling. You’ll work directly with clients, helping them answer complex marketing questions and improve performance using robust, data-led methods. This role comes with significant autonomy — you’ll lead technical delivery, own stakeholder relationships More ❯
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Senior Data Scientist

City of London, London, United Kingdom
Harnham
Senior Data Scientist Location: London Salary: Up to £80,000 About the Company Our client is one of the UK’s fastest-growing fintech companies, revolutionizing consumer finance by making it faster, cheaper, and more transparent. Backed by leading investors and loved by customers, they’ve rebuilt key financial products like loans, credit cards, and car finance … the ground up. With a strong foothold in the UK and US markets, they are challenging big banks and outdated systems with cutting-edge technology. The Role As a Senior Data Scientist, you’ll be at the heart of the business, developing state-of-the-art credit risk models to underpin loan and credit card products. You … serves deployments and monitoring, without reliance on a separate ML engineering team. Key Responsibilities Develop proprietary risk models to improve underwriting quality and enhance decision-making. Understand the products, data, and strategies to effectively inform risk modelling. Translate business problems into data-driven solutions and clearly communicate insights. Collaborate with stakeholders and contribute to the team’s growing More ❯
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Senior Data Scientist

City of London, London, United Kingdom
Harnham
Senior Data Scientist - Credit Risk London – Hybrid Up to £80,000 + Benefits Our client is a high-growth fintech revolutionising consumer finance through cutting-edge technology and data science. Backed by top investors and consistently rated as a market leader, they are transforming the way loans, credit cards, and financial products are delivered - offering customers … faster, more transparent, and seamless experiences. As a Senior Data Scientist, you’ll play a pivotal role in developing proprietary risk models that drive strategic decision-making and product innovation. Working within a multidisciplinary team, you’ll apply advanced machine learning techniques to improve underwriting quality and enhance financial product offerings. Key Responsibilities Build and refine credit … risk models using state-of-the-art ML techniques. Translate business challenges into data-driven solutions. Deploy and monitor models autonomously, without reliance on a separate ML engineering team. Clearly communicate insights and recommendations to stakeholders. What We’re Looking For Strong Python experience, with knowledge of ML techniques. Familiarity with the credit industry, financial products, and data More ❯
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Senior Data Scientist

City of London, London, United Kingdom
Peaple Talent
Senior Data Scientist - Credit Risk | Automotive Sector 🚘 | London (Hybrid) | £60,000–£90,000 Peaple Talent is working in partnership with a top-tier Automotive company focused on delivering innovative and sustainable mobility solutions. As the UK’s largest car leasing provider, they currently support over 750,000 drivers. What sets this client apart is their inclusion of … insurance coverage within lease agreements. With more than 815,000 Scheme Customers, they manage the UK’s largest motor fleet insurance policy. We’re now looking to onboard several Senior Data Scientists. These individuals will play a key role in strengthening the model risk management framework and ensuring accurate implementation of all forecast models. What we're looking … for: Solid academic background in Statistics, Mathematics, Economics, Data Science, or a related discipline A number of years experience in Risk Modelling, Credit Risk, Risk Management Proficiency in statistical tools, preferably Python or R Practical exposure to machine learning, predictive modelling, and advanced analytics techniques Industry experience in Automotive, Finance, or Manufacturing is highly desirable What’s in it More ❯
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Senior Pricing Data Scientist

City of London, London, United Kingdom
Harnham
Senior Pricing Data Scientist London Hybrid (1 day per week in office) Up to £85,000 Company: I’m hiring for a fast-growing InsurTech that’s reshaping how insurance pricing is done. They’ve attracted major investment and are building out a best-in-class pricing and data science team to support their rapid growth. … As a Senior Pricing Data Scientist, you’ll play a key role in designing and deploying advanced pricing models that directly impact revenue and profitability The Role: Build and deploy pricing models using statistical and machine learning techniques Analyse large datasets to understand risk and performance across products Develop pricing strategies that support customer growth and profitability … Work closely with engineering and product teams to integrate models into live systems Modelling market insurance premiums on/for aggregators Present pricing insights and strategy recommendations to senior stakeholders Experience Required: Experience in insurance pricing (motor, home, travel, or similar) Strong Python and SQL skills Experience building pricing models (GLMs essential, ML models a plus) Experience modelling insurance More ❯
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Senior Data Scientist

City of London, London, United Kingdom
Harnham
Senior Data Scientist Up to 70,000 London (Hybrid, 2 days onsite per week) Company: Join a performance marketing and data consultancy that partners with high-growth businesses to scale smarter through data-driven strategy and execution. They combine technical expertise with deep commercial insight and specialise in Paid Search (PPC), Conversion Rate Optimisation (CRO … and Data Engineering. Responsibilities: Own and shape the data science function, setting standards for excellence in machine learning, optimisation, predictive analytics, and experimentation. Lead high-impact projects across areas like customer segmentation, CLV modelling, bidding optimisation, and advanced measurement techniques. Work closely with marketing specialists, analysts, and engineers to deliver end-to-end performance marketing solutions. Apply data science expertise to solve real-world digital marketing challenges, driving smarter budget allocation and measurable outcomes for clients. Requirements: Master’s degree in Data Science, Computer Science, Statistics, Mathematics, or a related field Proficient in Python (core skill), with strong experience in SQL Proven track record of applying analytics in digital media, technology, or consumer-focused organisations. Strong More ❯
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Senior Marketing Data Scientist

City of London, London, United Kingdom
Hybrid / WFH Options
Harnham
Job Title: Senior Marketing Data Scientist Salary: Up to £75,000 Location: West London (Hybrid) The Company Join a global leader in customer data science that helps businesses unlock the power of data to drive growth, innovation, and customer-centric decision making. With a strong focus on actionable insights, this company supports a wide range … of clients in transforming their marketing strategies through advanced analytics and data science. The Role As a Senior Marketing Data Scientist , you’ll play a critical role in solving complex business challenges through data. From shaping the problem to delivering data-driven solutions and insights, you'll collaborate closely with clients and internal stakeholders to … drive measurable impact. Projects span a range of advanced analytics including propensity modelling, clustering, regression, and forecasting . Key Responsibilities Translate business problems into data science solutions and deliver clear, actionable insights. Collaborate directly with clients, answering key questions and influencing strategy. Work across a variety of modelling techniques including clustering, regression, and propensity modelling. Develop compelling data More ❯
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Senior Data Scientist

City of London, London, United Kingdom
Hybrid / WFH Options
Harnham
Senior Data Scientist Up to £80,000 Location (Hybrid, 3 days per week) Company: Join a dynamic consultancy that has undergone an exciting rebrand since 2020, pivoting their focus towards customer-centric, data-driven solutions. Partnering primarily with private equity-backed businesses, they offer a powerful customer insight product designed to help organisations better understand and … maximise the value of their customer base. Responsibilities: Create scalable solutions to solve real-world challenges like demand forecasting, personalisation, and customer segmentation Translate business problems into data science use cases and deliver measurable outcomes Apply clustering, classification, regression, time series modelling, NLP, and deep learning. Develop recommendation engines and leverage third-party data enhancements. Collaborate with stakeholders … to translate business challenges into data-driven solutions Reporting back and presenting to non-technical clients Requirements: MSc or PhD Degree in Computer Science, Artificial Intelligence, Mathematics, Statistics or related fields. Strong coding skills in Python and SQL Communication skills – able to translate complex insights into business value Strong experience with clustering, time-series forecasting, and regression techniques. Experience More ❯
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Senior Data Scientist

City of London, London, United Kingdom
Hybrid / WFH Options
Harnham
Senior Data Scientist Up to £80,000 London (Remote First) Company: Join a leading B2B Travel and Hospitality company that partners with major global airlines and hotel brands. In this role, you’ll drive revenue growth and elevate the e-commerce experience by leveraging advanced forecasting, automation, and data-driven insights. Responsibilities: Lead technical efforts to … propose initiatives to shape the long-term scientific vision. Own and actively contribute to the design and development of internal machine learning and forecasting libraries. Work with product and data science management to develop key results for given product objectives. Establish scalable and efficient practices for data mining, ML model development, validation and inference. Building demand forecasting models More ❯
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Principal Data Scientist

City of London, London, United Kingdom
Harnham
Principal Data Scientist London, UK (Hybrid) Up to £135,000 About the Company We’re working with a next-generation private markets firm that is redefining value creation by combining deep industry expertise with advanced AI and data science. This is a unique opportunity to join a company that partners directly with portfolio companies to drive measurable … operational and financial performance—powered by data. They’re now hiring a Principal Data Scientist to lead high-impact analytics and machine learning projects across a wide variety of real-world domains - from manufacturing to customer experience and commercial optimisation. Working closely with a multidisciplinary team, you’ll have the autonomy to shape technical approaches while staying closely … tied to commercial outcomes. This role is ideal for someone who enjoys solving complex, ambiguous business problems using data science, and wants to work at the intersection of technology, investment, and strategy. Key Responsibilities Translate complex business problems into measurable data science solutions that deliver commercial value Lead the design, development, and deployment of predictive and optimisation models More ❯
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Senior Data Scientist

City Of Westminster, London, United Kingdom
Mars Petcare UK
its project funding, and the necessity to secure your next full-time or promotional opportunity with Mars before December 31, 2026 . This role is a key member of data science component of the Manufacturing D&A team. We are searching for a highly experienced data scientist to help deliver Pet Nutrition's digital transformation objectives. The … within a multi-disciplinary D&A team and focuses on managing and delivering projects, identifying and implementing strategic opportunities and working with the business to extract value from their data assets. This will demand rapidly learning about the data we have, the business needs/challenges and applying expertise in analytics and data science delivery to turn … this into great insight that is ultimately actionable and leads to valuable outcomes for the business. What are we looking for? Degree or equivalent in Data Science, Mathematics, Statistics, or other numerate discipline. Nice to have - Master's/PhD with computing, scientific, statistical, or mathematical component. 10+ years' experience working as a Data Scientist. 5+ years varied More ❯
Employment Type: Permanent
Salary: GBP Annual
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Senior Data Scientist

City of London, London, United Kingdom
Harnham
Senior Pricing Data Scientist Up to 80,000 London (Hybrid, 1 days onsite per week) Company: They provide flexible and reliable home insurance tailored to the needs of modern households. Whether covering unique properties or complex personal circumstances they are committed to making home insurance more inclusive, accessible, and straightforward. Responsibilities: Lead the conversion rate and market … invest and grow even further Working heavily with price comparison websites and making sure they are the most competitive on the market right now Requirements: Master’s degree in Data Science, Computer Science, Statistics, Mathematics, or a related field Proficient in Python (core skill), with strong experience in SQL Strong technical expertise in AI/ML and advanced analytics. More ❯
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Senior Data Scientist

City of London, London, United Kingdom
CAA Portas
sustainable business performance Transforming organisations and develop future sport leaders Driving increased and more effective funding into sport Achieving lasting positive change in society Overview We are expanding our Data & AI team and are looking for a Senior Data Scientist to join the team. You will lead analytical workstreams on client projects, help productionise workflows and … making across sporting performance, commercial and operations. We are looking for someone proactive, excited by the opportunity of working in a growing team, and who loves sport. Responsibilities: Lead data science workstreams on client projects, managing analysts and collaborating with consultants Develop and deploy statistical models and core IP Build reusable tools to streamline analysis and visualisation Communicate insights More ❯
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Lead Data Scientist

City of London, London, United Kingdom
Harnham
Lead Data Scientist Hybrid - London 1 day per week Up to £85,000 About the Role We are working with a high-growth performance marketing and technology company who are looking for a new Lead Data Scientist to join the team. You'll be working at the intersection of data, technology, and marketing, you’ll … lead the delivery of cutting-edge machine learning, optimisation, and analytics solutions that drive measurable business outcomes. Reporting directly to the Director of Data, you’ll take ownership of high-impact projects across areas such as customer lifetime value, predictive modelling, bidding optimisation, and experimentation, whilst also acting as a data lead for major clients. Initially hands-on … this role will evolve into a more strategic leadership position, with team management responsibilities (starting with three Data Scientists, growing to five within a year) expected within the first six months. Key Responsibilities Lead and deliver data science solutions across predictive modelling, optimisation, and experimentation. Act as a strategic data partner to key clients, owning technical delivery More ❯
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Senior Pricing Data Scientist

City of London, London, United Kingdom
Harnham
Senior Pricing Data Scientist Up to 80,000 London (Hybrid, 1 days onsite per week) Company: They provide flexible and reliable home insurance tailored to the needs of modern households. Whether covering unique properties or complex personal circumstances they are committed to making home insurance more inclusive, accessible, and straightforward. Responsibilities: Lead the conversion rate and market … invest and grow even further Working heavily with price comparison websites and making sure they are the most competitive on the market right now Requirements: Master’s degree in Data Science, Computer Science, Statistics, Mathematics, or a related field Proficient in Python (core skill), with strong experience in SQL Strong technical expertise in AI/ML and advanced analytics. More ❯
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Lead Data Scientist

City of London, London, United Kingdom
Harnham
Lead Data Scientist – ML Focused Remote – UK Up to £90,000 + Benefits About the Role We’re hiring a Lead Data Scientist to join a fast-growing, specialist data consultancy delivering high-impact solutions across sectors such as energy, public sector, manufacturing, and health. You’ll play a key role in solving complex challenges … client-facing capacity. This is a leadership position, ideal for someone who thrives in a consultancy environment and wants to deliver real-world impact. Key Responsibilities Design and deliver data science solutions end-to-end, from discovery through deployment. Lead project teams, mentor junior colleagues, and manage delivery standards across multiple workstreams. Communicate complex findings clearly to senior stakeholders and clients. Support business development through proposal writing and pre-sales work. We're looking for someone with: Proven experience delivering data science projects in a consultancy setting. Strong Python skills with experience in ML or GenAI (e.g. LLMs, prompt engineering, optimisation). Excellent communication and stakeholder management abilities. A track record of managing teams and shaping More ❯
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Principal Data Scientist

City of London, London, United Kingdom
Harnham
Principal Data Scientist Up to £125,000 London (Hybrid, 3 days onsite per week) Company: A leading marketing and analytics agency is seeking a Lead Data Scientist to develop and deploy end-to-end AI solutions. You'll work on machine learning models for retention, price optimisation, recommendation engines, NLP, and Computer Vision. Responsibilities: Design, develop … production-level code) and other tools like SQL, Spark, and Databricks. Apply clustering, classification, regression, time series modelling, NLP, and deep learning. Develop recommendation engines and leverage third-party data enhancements. Implement MLOps/DevOps practices in cloud environments (AWS, Azure, GCP). Ensure explainability, bias detection, and algorithmic fairness in models. Collaborate with stakeholders to translate business challenges … into data-driven solutions. Requirements: MSc or PhD Degree in Computer Science, Artificial Intelligence, Mathematics, Statistics or related fields. Strong Python skills (bonus: C++, SQL, Spark) Experience in ML algorithms (XGBoost, clustering, regression) Expertise in Time Series, NLP, Computer Vision, MLOps Knowledge of AWS/Azure/GCP, CI/CD, and Agile development Ability to own solutions and More ❯
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Lead Data Scientist

City of London, London, United Kingdom
Harnham
Lead Decision/Data Scientist – Credit London, UK – Hybrid Up to £100,000 + Benefits About the Company We are working with a fast-growing fintech scaleup, who are on a mission to reshape access to financial services across underserved markets. With a strong focus on innovation, collaboration, and data-driven decision-making, the company is building … impactful financial products tailored to real customer needs. We’re looking for a Lead Decision Scientist, to lead the development, deployment, and ongoing optimisation of credit risk models. This is a high-impact position at the intersection of data science, risk, and business strategy. You’ll drive lending strategy, own the end-to-end modeling lifecycle, and guide … a growing team of analysts as we scale. This role is perfect for someone who thrives on experimentation, has a deep understanding of credit data, and enjoys working in a fast-paced environment. Key Responsibilities Lead the design, development, and maintenance of credit risk and affordability models using bureau, open banking, and behavioural data Own the full model More ❯
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Senior Data Scientist
the City of London
25th Percentile
£80,000
Median
£85,000
75th Percentile
£90,000