1 to 25 of 36 Senior Data Scientist Jobs in the City of London

Senior Data Scientist – High-Growth Fintech SaaS | Strategic AI & ML Role We’re supporting a fast-scaling fintech SaaS company backed by tier-one investors to find a Senior Data Scientist to take a lead role in shaping their data science capability. This is a high-impact position where you’ll combine deep … technical expertise with strategic product influence, embedding AI and ML at the heart of next-generation financial data products. The Opportunity As Senior Data Scientist, you’ll be both a leading individual contributor and a mentor. You’ll drive excellence across the data science stack, champion technical best practice, and influence product direction with a … deep understanding of financial data ecosystems. This role sits at the intersection of AI innovation, product strategy, and engineering culture , giving you the freedom to deliver solutions that scale globally. What You’ll Be Doing Acting as a technical leader and mentor, raising the bar for data science capability Using domain knowledge of financial data to shape More ❯

Senior Data Scientist – High-Growth Fintech SaaS | Strategic AI & ML Role We’re supporting a fast-scaling fintech SaaS company backed by tier-one investors to find a Senior Data Scientist to take a lead role in shaping their data science capability. This is a high-impact position where you’ll combine deep … technical expertise with strategic product influence, embedding AI and ML at the heart of next-generation financial data products. The Opportunity As Senior Data Scientist, you’ll be both a leading individual contributor and a mentor. You’ll drive excellence across the data science stack, champion technical best practice, and influence product direction with a … deep understanding of financial data ecosystems. This role sits at the intersection of AI innovation, product strategy, and engineering culture , giving you the freedom to deliver solutions that scale globally. What You’ll Be Doing Acting as a technical leader and mentor, raising the bar for data science capability Using domain knowledge of financial data to shape More ❯

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 J13004 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 … you 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 ❯

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 J13004 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 … you 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 ❯

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 ❯

Senior Data Scientist 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 of machine learning models … 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 ❯

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 ❯

Senior Data Scientist Up to £80,000 + 15% bonus Hybrid – 3 days per week in office (London) We’ve partnered with an innovative Data Start-up who are looking to hire a passionate Senior Data Scientist. This consultancy provides innovative SAAS and AI solutions to their household name clients and is an excellent … Experience with building machine learning models and deploying at scale 2:1 or above in Mathematics or STEM Degree from a Top UK university 3 years' experience in a Data Scientist or relevant field Interview Process: SQL and Python Test Technical interview (1 hour) In person Team Fit (2 hours More ❯

Senior Data Scientist Up to £80,000 + 15% bonus Hybrid – 3 days per week in office (London) We’ve partnered with an innovative Data Start-up who are looking to hire a passionate Senior Data Scientist. This consultancy provides innovative SAAS and AI solutions to their household name clients and is an excellent … Experience with building machine learning models and deploying at scale 2:1 or above in Mathematics or STEM Degree from a Top UK university 3 years' experience in a Data Scientist or relevant field Interview Process: SQL and Python Test Technical interview (1 hour) In person Team Fit (2 hours More ❯

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 ❯

Senior Data Scientist London – Hybrid Up to £85,000 About the Role We’re working with a fast-growing SaaS company that processes billions of data points daily to protect clients’ digital advertising from wasteful and fraudulent traffic. They are seeking an experienced Data Scientist with strong machine learning expertise to join their team … the design and implementation of ML models for fraud and invalid traffic detection, ensuring seamless deployment and integration into production systems. Drive experimentation and prototyping of new algorithms and data products. Research and surface emerging ad fraud patterns in large-scale data. Monitor and optimise model performance post-deployment, tackling challenges such as model drift and false positives. Collaborate … with Product, Engineering, and Commercial teams to translate business needs into impactful data-driven solutions. Contribute to technical standards, mentor peers, and foster a high-quality data science culture. Stay up to date with the latest in ML and fraud detection techniques, feeding innovations into the product roadmap. What We’re Looking For Strong experience designing, developing, and More ❯

clear vision. Our mission is to build products that customers love by harnessing cutting-edge AI to transform their shopping experience. About the Job We are looking for a Senior Data Scientist with experience in bringing advanced machine learning and data science systems to production to work with our team of industry leading domain experts and … engineers. You'll be working across our entire data science stack, from advanced recommender systems to comprehensive performance analytics. Key Responsibilities: Design and implement scalable machine learning for complex data analysis, optimised recommendations, and predictive modelling. Translate the latest advances in machine learning into impactful solutions and products, from rapid MVPs to fully deployed, production-ready systems. Bring … your models to production and optimise for inference in edge computing environments. Essential Qualifications: 3-5+ years implementing advanced data science solutions in a commercial setting. MSc in Computer Science, Machine Learning, or a related field. Experience building data pipelines (realtime or batch) & data quality using modern toolchain (e.g., Apache Spark, Kafka, Airflow, dbt). Strong More ❯

clear vision. Our mission is to build products that customers love by harnessing cutting-edge AI to transform their shopping experience. About the Job We are looking for a Senior Data Scientist with experience in bringing advanced machine learning and data science systems to production to work with our team of industry leading domain experts and … engineers. You'll be working across our entire data science stack, from advanced recommender systems to comprehensive performance analytics. Key Responsibilities: Design and implement scalable machine learning for complex data analysis, optimised recommendations, and predictive modelling. Translate the latest advances in machine learning into impactful solutions and products, from rapid MVPs to fully deployed, production-ready systems. Bring … your models to production and optimise for inference in edge computing environments. Essential Qualifications: 3-5+ years implementing advanced data science solutions in a commercial setting. MSc in Computer Science, Machine Learning, or a related field. Experience building data pipelines (realtime or batch) & data quality using modern toolchain (e.g., Apache Spark, Kafka, Airflow, dbt). Strong More ❯

Senior Marketing Analytics & Data Scientist (Contract) Location: London Bridge (Hybrid, 2 days on-site per week) Contract Type: Outside IR35 | £500 per day | 3 months | Full or Part-Time Start : ASAP About the Role We are seeking a highly skilled Senior Marketing Analytics & Data Scientist to join on a contract basis. This role is … reporting and analytics framework, with a strong emphasis on Tableau reporting and analysis. The successful candidate will design and automate dashboards, deliver actionable insights, and ensure marketing and sales data is accurate, consistent, and decision-ready. This is a hands-on role ideal for someone who thrives on creating reporting infrastructure from the ground up, and who can translate … complex datasets into meaningful commercial insights. Key Responsibilities Design, develop, and automate Tableau dashboards across digital marketing channels (Paid Media, Social, CRM, etc.). Partner with senior stakeholders to define KPIs and metrics aligned to business goals. Analyse campaign performance, channel ROI, sales funnel health, and customer acquisition trends. Ensure consistency, accuracy, and reliability of marketing and sales reporting More ❯

Senior Marketing Analytics & Data Scientist (Contract) Location: London Bridge (Hybrid, 2 days on-site per week) Contract Type: Outside IR35 | £500 per day | 3 months | Full or Part-Time Start : ASAP About the Role We are seeking a highly skilled Senior Marketing Analytics & Data Scientist to join on a contract basis. This role is … reporting and analytics framework, with a strong emphasis on Tableau reporting and analysis. The successful candidate will design and automate dashboards, deliver actionable insights, and ensure marketing and sales data is accurate, consistent, and decision-ready. This is a hands-on role ideal for someone who thrives on creating reporting infrastructure from the ground up, and who can translate … complex datasets into meaningful commercial insights. Key Responsibilities Design, develop, and automate Tableau dashboards across digital marketing channels (Paid Media, Social, CRM, etc.). Partner with senior stakeholders to define KPIs and metrics aligned to business goals. Analyse campaign performance, channel ROI, sales funnel health, and customer acquisition trends. Ensure consistency, accuracy, and reliability of marketing and sales reporting More ❯

Lead Data Scientist Hybrid - London (3 days a week) Up to £80,000 We are working with ahousehold fashion brand. They are on the lookout for a Principal Data Scientist to join its growing Data & Analytics team. With a presence across a thriving eCommerce platform, mobile app, and 300+ retail stores, this is your chance … to join an exciting team. As Principal Data Scientist, you’ll lead the data science function, supporting customer understanding, marketing effectiveness, and personalisation. From optimising campaign performance to driving loyalty and segmentation strategies, you’ll help put data at the heart of every customer interaction. The Role: Lead, mentor, and grow a team of Data … cases. Build and deploy models that support personalisation, customer segmentation, lifetime value prediction, churn prevention, and marketing attribution. Partner closely with CRM, Digital Marketing, and eCommerce teams to deliver data-driven improvements across the customer journey. Leverage advanced analytics to understand customer behaviour and optimise marketing spend and engagement. Ensure data quality and scalable infrastructure for marketing and More ❯

Principal Data Scientist Hybrid - London (3 days a week) Up to £80,000 We are working with ahousehold fashion brand. They are on the lookout for a Principal Data Scientist to join its growing Data & Analytics team. With a presence across a thriving eCommerce platform, mobile app, and 300+ retail stores, this is your chance … to join an exciting team. As Principal Data Scientist, you’ll lead the data science function, supporting customer understanding, marketing effectiveness, and personalisation. From optimising campaign performance to driving loyalty and segmentation strategies, you’ll help put data at the heart of every customer interaction. The Role: Lead, mentor, and grow a team of Data … cases. Build and deploy models that support personalisation, customer segmentation, lifetime value prediction, churn prevention, and marketing attribution. Partner closely with CRM, Digital Marketing, and eCommerce teams to deliver data-driven improvements across the customer journey. Leverage advanced analytics to understand customer behaviour and optimise marketing spend and engagement. Ensure data quality and scalable infrastructure for marketing and More ❯

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 ❯

Senior Data Scientist Up to £85,000 London (Hybrid, 4 day working week) Company: An Ad Tech performance marketing SaaS platform that analyse and process billions of traffic data points daily to identify and prevent wasteful traffic or bot activity, helping our clients improve the quality and effectiveness of their ad traffic. Responsibilities: Design, build, and … or PhD Degree in Computer Science, Artificial Intelligence, Mathematics, Statistics or related fields. Deep proficiency in Python, SQL and cloud infrastructure Proven experience with AWS, including SageMaker, Lambda, and data services How to Apply: Please register your interest by sending your CV to Emily Burgess via the Apply link on this page More ❯

Lead Data Scientist London - 3 days a week Up to £125,000 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 Lead Data Scientist to lead high-impact analytics and machine learning projects across a wide variety of real-world domains. 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 across multiple industries Own the end More ❯

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 ❯

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 ❯

Data Scientist Up to £60,000 Join a Brand Equity start up that partners with leading CPG and retail brands better understand their market position, optimise marketing spend, and strengthen brand equity through advanced data science techniques. Responsibilities: Responsible for integrating multiple previously disconnected datasets Leveraging advanced techniques in machine learning, natural language processing (NLP), and computer … vision Utilise these technologies to uncover novel consumer insights, empowering clients to make data-driven decisions Enhancing understanding of consumer behaviour, market trends, and emerging patterns. Play a key role in standardising AI into a global solution Requirements: MSc in Computer Science, Artificial Intelligence, Mathematics, Statistics or related fields. Experience in Consumer/Marketing Analytics Strong proficiency in Python More ❯

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 ❯

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 ❯