1 to 25 of 55 Senior Data Scientist Jobs in 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 – 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 ❯

Job Title Senior Data Scientist Location London - hybrid working (2/3 days in City offices) Salary To c£75,000 negotiable DoE Job ReferenceJ13015 POSITION OVERVIEW We are super excited to be partnering with one of the largest global lifestyle brands at a pivotal stage in their data journey. As they bring CRM and customer … insight capability 'in house' and roll out a new customer data platform, this role will be central to shaping how data science is delivered, working closely with Data Science teams and IT partners to build for the future, not maintain the past. Job Title Senior Data Scientist Location London - hybrid working (2/… negotiable DoE Job ReferenceJ13015 POSITION OVERVIEW We are super excited to be partnering with one of the largest global lifestyle brands at a pivotal stage in their data journey. As they bring CRM and customer insight capability 'in house' and roll out a new customer data platform, this role will be central to shaping how data science 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 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 … 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 – £75–80k + Benefits 📍 London | Hybrid (2–3 days office) We’re looking for a Senior Data Scientist to step into a hands-on leadership role within a fast-growing consultancy environment. You’ll combine advanced technical depth with team leadership, mentoring junior scientists, and shaping client solutions at scale. 🔎 The … Role Lead and mentor a small team of junior Data Scientists & Analysts. Deliver advanced machine learning and predictive analytics projects end-to-end. Engage with clients to define problems and build data-driven strategies. Ensure best practices in reproducibility, coding standards, and scalable pipelines. Translate complex insights into actionable outcomes for non-technical stakeholders. ✅ What We’re Looking … For 5+ years’ industry experience in Data Science, ideally with consulting exposure. Strong academic background (MSc/PhD in Data Science, Computer Science, Statistics, or similar). Experience managing or mentoring junior talent. Excellent skills in Python, SQL, cloud (AWS/GCP/Azure), and ML frameworks. A confident communicator able to influence across technical and executive teams. More ❯

Senior Data Scientist – £75–80k + Benefits 📍 London | Hybrid (2–3 days office) We’re looking for a Senior Data Scientist to step into a hands-on leadership role within a fast-growing consultancy environment. You’ll combine advanced technical depth with team leadership, mentoring junior scientists, and shaping client solutions at scale. 🔎 The … Role Lead and mentor a small team of junior Data Scientists & Analysts. Deliver advanced machine learning and predictive analytics projects end-to-end. Engage with clients to define problems and build data-driven strategies. Ensure best practices in reproducibility, coding standards, and scalable pipelines. Translate complex insights into actionable outcomes for non-technical stakeholders. ✅ What We’re Looking … For 5+ years’ industry experience in Data Science, ideally with consulting exposure. Strong academic background (MSc/PhD in Data Science, Computer Science, Statistics, or similar). Experience managing or mentoring junior talent. Excellent skills in Python, SQL, cloud (AWS/GCP/Azure), and ML frameworks. A confident communicator able to influence across technical and executive teams. More ❯

Senior Data Scientist – £75–80k + Benefits 📍 London | Hybrid (2–3 days office) We’re looking for a Senior Data Scientist to step into a hands-on leadership role within a fast-growing consultancy environment. You’ll combine advanced technical depth with team leadership, mentoring junior scientists, and shaping client solutions at scale. 🔎 The … Role Lead and mentor a small team of junior Data Scientists & Analysts. Deliver advanced machine learning and predictive analytics projects end-to-end. Engage with clients to define problems and build data-driven strategies. Ensure best practices in reproducibility, coding standards, and scalable pipelines. Translate complex insights into actionable outcomes for non-technical stakeholders. ✅ What We’re Looking … For 5+ years’ industry experience in Data Science, ideally with consulting exposure. Strong academic background (MSc/PhD in Data Science, Computer Science, Statistics, or similar). Experience managing or mentoring junior talent. Excellent skills in Python, SQL, cloud (AWS/GCP/Azure), and ML frameworks. A confident communicator able to influence across technical and executive teams. More ❯

Senior Data Scientist – £75–80k + Benefits 📍 London | Hybrid (2–3 days office) We’re looking for a Senior Data Scientist to step into a hands-on leadership role within a fast-growing consultancy environment. You’ll combine advanced technical depth with team leadership, mentoring junior scientists, and shaping client solutions at scale. 🔎 The … Role Lead and mentor a small team of junior Data Scientists & Analysts. Deliver advanced machine learning and predictive analytics projects end-to-end. Engage with clients to define problems and build data-driven strategies. Ensure best practices in reproducibility, coding standards, and scalable pipelines. Translate complex insights into actionable outcomes for non-technical stakeholders. ✅ What We’re Looking … For 5+ years’ industry experience in Data Science, ideally with consulting exposure. Strong academic background (MSc/PhD in Data Science, Computer Science, Statistics, or similar). Experience managing or mentoring junior talent. Excellent skills in Python, SQL, cloud (AWS/GCP/Azure), and ML frameworks. A confident communicator able to influence across technical and executive teams. More ❯

Senior Data Scientist (Optimisation) Hybrid (Av. 2 days office pw) | London 📍 £80k–£90k + Share options + Additional benefits The business This is a fast-growing AI technology company of around 15 people, building cutting-edge predictive and optimisation solutions for real-world operational challenges. The data team you'll be joining is at the centre … of their platform which powers smarter workforce planning, scheduling and supply chain decisions for the clients they support. The role They're looking for a Senior Data Scientist with a passion for optimisation and operations research to help take the platform to the next level. There is a strong focus on mathematical modelling and utilising ML and … models and optimisers (beyond standard ML approaches) Evolve the existing optimiser into a scalable, production-ready system Write production-quality Python code and collaborate closely with engineers and other data scientists Mentor and coach junior data scientists whilst maintaining best practice. What they're looking for Strong Python skills (critical) Hands-on experience with optimisation/operations research More ❯

Senior Data Scientist (Optimisation) Hybrid (Av. 2 days office pw) | London 📍 £80k–£90k + Share options + Additional benefits The business This is a fast-growing AI technology company of around 15 people, building cutting-edge predictive and optimisation solutions for real-world operational challenges. The data team you'll be joining is at the centre … of their platform which powers smarter workforce planning, scheduling and supply chain decisions for the clients they support. The role They're looking for a Senior Data Scientist with a passion for optimisation and operations research to help take the platform to the next level. There is a strong focus on mathematical modelling and utilising ML and … models and optimisers (beyond standard ML approaches) Evolve the existing optimiser into a scalable, production-ready system Write production-quality Python code and collaborate closely with engineers and other data scientists Mentor and coach junior data scientists whilst maintaining best practice. What they're looking for Strong Python skills (critical) Hands-on experience with optimisation/operations research More ❯

Senior Data Scientist (Optimisation) Hybrid (Av. 2 days office pw) | London 📍 £80k–£90k + Share options + Additional benefits The business This is a fast-growing AI technology company of around 15 people, building cutting-edge predictive and optimisation solutions for real-world operational challenges. The data team you'll be joining is at the centre … of their platform which powers smarter workforce planning, scheduling and supply chain decisions for the clients they support. The role They're looking for a Senior Data Scientist with a passion for optimisation and operations research to help take the platform to the next level. There is a strong focus on mathematical modelling and utilising ML and … models and optimisers (beyond standard ML approaches) Evolve the existing optimiser into a scalable, production-ready system Write production-quality Python code and collaborate closely with engineers and other data scientists Mentor and coach junior data scientists whilst maintaining best practice. What they're looking for Strong Python skills (critical) Hands-on experience with optimisation/operations research More ❯

Senior Data Scientist Ai ML Python MML Japanese & English Speaking Working Pattern: Hybrid (12 days per week in office) Location: London The Data Science function plays a pivotal role in delivering advanced Artificial Intelligence capabilities across the organisation. This position focuses on designing, developing, and deploying production-grade machine learning solutions while contributing to the strategic … advanced machine learning models and algorithms into production. Lead technical development within cross-functional teams, providing guidance on ML solution design and implementation. Translate business problems into clearly defined data science solutions and deliver end-to-end ML pipelines. Support proof-of-value initiatives and contribute to product roadmap development from a Data Science perspective. Drive continuous improvement … within the Data Science function and promote best practices in model development and deployment. Stay current with emerging research, tools, and trends in Artificial Intelligence. ---------------------------------------- Skills, Knowledge, and Experience Strong proficiency in Python and experience writing scalable, production-ready code. Hands-on experience with PyTorch, Transformer architectures, and Large Language Models (LLMs). Demonstrated success delivering Computer Vision and More ❯

Job Title Senior Data Scientist Job Description So, who are we? Hello, we're IG Group. We are a publicly-traded FTSE250 FinTech company who run mobile, web and desktop platforms that help our clients trade stocks & shares, leveraged products, Futures & Options and Crypto. We are ambitious. Over 340,000 people already use our platforms. We're … on increasing the number of active clients we serve to drive sustainable growth. Your team Are you passionate about delivering real value to an organisation using advanced techniques in data science and machine learning? We are looking for a talented senior data scientist to work in our Data Science team. The role presents an opportunity … for you to partner with stakeholders across all areas of the business, including marketing, risk, customer services and quants, to deliver impactful data products using state-of-the-art machine learning techniques. Your role in the Team's Success Data Science is fast-growing at IG and we are constantly refining what this discipline means for the organisation. More ❯

Senior Data Scientist (Optimisation) Hybrid (2/3 office split) | London £80k–£90k + Share options + Additional benefits The business This is a fast-growing AI technology company of around 15 people, building cutting-edge predictive and optimisation solutions for real-world operational challenges. The data team you'll be joining is at the centre … of their platform which powers smarter workforce planning, scheduling and supply chain decisions for the clients they support. The role They're looking for a Senior Data Scientist with a passion for optimisation and operations research to help take the platform to the next level. There is a strong focus on mathematical modelling and utilising ML and … models and optimisers (beyond standard ML approaches) Evolve the existing optimiser into a scalable, production-ready system Write production-quality Python code and collaborate closely with engineers and other data scientists What they're looking for Strong Python skills (critical) Hands-on experience with optimisation/operations research/mathematical modelling Background in supply chain or workforce planning (desirable More ❯

leading enterprise fraud and authentication platform is used by thousands of financial institutions around the world to protect millions of customer accounts and billions of transactions annually. Leveraging proven data science, including our proprietary consortium data, our customers use our risk-based, machine learning platform to deliver the highest fraud detection rates, lowest false positive rates, and lowest … customer intervention in the industry. We stop fraud, not customers. See what others can't at What you'll achieve As a Senior Data Scientist you will develop and implement machine learning models, perform advanced data analysis, and identify patterns and trends to improve the efficiency and usability of our products and services. You will also … be responsible for creating insightful reports and dashboards to support data-driven decision-making across the organization. Responsibilities Understand business problems and conduct statistical analysis independently. Break down hard problems. Communicate effectively to senior stakeholders. Deliver value end-to-end. Self-serve data engineering and infrastructure as required. Make recommendations on best practice in terms of analysis More ❯

Job Title Senior Data Scientist Location London – hybrid working (2/3 days in City offices) Salary To c£75,000 negotiable DoE Job Reference J13015 POSITION OVERVIEW We are super excited to be partnering with one of the largest global lifestyle brands at a pivotal stage in their data journey. As they bring CRM and … customer insight capability 'in house' and roll out a new customer data platform, this role will be central to shaping how data science is delivered, working closely with Data Science teams and IT partners to build for the future, not maintain the past. They are looking for a passionate and experienced Senior Data Scientist … and regional marketing teams to align with campaign goals and customer segmentation strategies Own the full ML lifecycle—from model design to deployment and monitoring. Partner with engineering and data teams to ensure scalable solutions. Continuously monitor and improve model performance using data insights and feedback. REQURIED SKILLS & EXPERIENCE Proven experience in machine learning, particularly in recommendation systems More ❯

Job Title Senior Data Scientist Location London – hybrid working (2/3 days in City offices) Salary To c£75,000 negotiable DoE Job Reference J13015 POSITION OVERVIEW We are super excited to be partnering with one of the largest global lifestyle brands at a pivotal stage in their data journey. As they bring CRM and … customer insight capability 'in house' and roll out a new customer data platform, this role will be central to shaping how data science is delivered, working closely with Data Science teams and IT partners to build for the future, not maintain the past. They are looking for a passionate and experienced Senior Data Scientist … and regional marketing teams to align with campaign goals and customer segmentation strategies Own the full ML lifecycle—from model design to deployment and monitoring. Partner with engineering and data teams to ensure scalable solutions. Continuously monitor and improve model performance using data insights and feedback. REQURIED SKILLS & EXPERIENCE Proven experience in machine learning, particularly in recommendation systems More ❯

Job Title Senior Data Scientist Location London – hybrid working (2/3 days in City offices) Salary To c£75,000 negotiable DoE Job Reference J13015 POSITION OVERVIEW We are super excited to be partnering with one of the largest global lifestyle brands at a pivotal stage in their data journey. As they bring CRM and … customer insight capability 'in house' and roll out a new customer data platform, this role will be central to shaping how data science is delivered, working closely with Data Science teams and IT partners to build for the future, not maintain the past. They are looking for a passionate and experienced Senior Data Scientist … and regional marketing teams to align with campaign goals and customer segmentation strategies Own the full ML lifecycle—from model design to deployment and monitoring. Partner with engineering and data teams to ensure scalable solutions. Continuously monitor and improve model performance using data insights and feedback. REQURIED SKILLS & EXPERIENCE Proven experience in machine learning, particularly in recommendation systems More ❯

As a Principal Data Scientist at Hiscox, you will play a pivotal role as a critical thinker for Hiscox, applying your deep expertise to address our most intricate business challenges and uncover significant opportunities within our data landscape. You will utilise your technical skills and innovative mindset to tackle complex business problems and identify opportunities for growth. … Additionally, you will provide ad hoc analysis and develop predictive and prescriptive models to foster a data-driven culture within Hiscox. You will act as a technical mentor and guide to our team members, fostering best practices, elevating coding standards, and driving advanced analytical techniques across the team. Your ability to translate complex technical findings into clear, actionable insights … and specific business needs. Operating within a dynamic and evolving environment, you will play a key role in continuously advancing our technical capabilities and ensuring the effective application of data science across the insurance value chain. The role As a Principal Data Scientist, you will be an integral part of a dynamic technical team, strategically focused on More ❯

in the life This role is remote first but travel will occasionally be required to the London office. In this role, you will be at the forefront of our data-driven initiatives, training machine learning and artificial intelligence models as well as leveraging advanced statistical techniques to uncover trends and patterns that inform our business strategy. Your insights will … play a key role in shaping decisions across various business areas, including marketing, sales, claims, customer retention, fraud detection, and customer servicing. As a Data Scientist, you'll collaborate closely with cross-functional teams, including product management and engineering, to identify an integrate your findings into our operations and develop predictive models that enhance our business processes. This … ensuring that your contributions have a significant impact across the organisation. We value innovation and continuous improvement, so you'll be encouraged to stay current with emerging trends in data science and the pet insurance industry. You'll have the opportunity to evaluate and implement new methodologies, tools, and frameworks to keep our data analysis and modelling processes More ❯

Data Scientist - Customer Experience Location: London (2 days per week on site) Contract Length: 3 months initially, scope to extend Day Rate: £615 per day (Inside IR35) Overview A leading organisation is seeking an experienced Data Scientist to join their Customer Experience and Fraud Compensation team. This role will focus on developing and refining models that … service outcomes. Support the expansion and adaptation of existing models from international teams. Translate complex analytical outputs into clear, actionable insights for non-technical stakeholders. Develop visualisations and concise data stories to communicate findings to senior leaders. Ensure models remain robust, interpretable, and commercially relevant , avoiding unnecessary complexity. Required Skills and Experience Proven experience as a Data Scientist within a customer, marketing, or consumer analytics environment. Strong proficiency in Python for data manipulation, analysis, and model development. Experience working with Vertex AI Solid understanding of predictive modelling , causal inference , optimisation , or uplift modelling . Demonstrated ability to simplify technical work for senior business audiences. Collaborative mindset with the ability to take on feedback More ❯

solutions that transform the way people and businesses interact with data. With a strong focus on AI, machine learning, and advanced analytics, they are tackling complex challenges and driving data-led decision-making across their industry. The Opportunity: We are partnering with our client to find a talented Senior Data Scientist who is passionate about using … data to deliver real business impact. This is a fantastic opportunity to join a collaborative team where you'll work alongside engineers, product managers, and business stakeholders to shape data-driven products and strategies. Key Responsibilities: Develop and implement machine learning models and algorithms to solve real-world business challenges. Collaborate with cross-functional teams to identify opportunities … where data science can create value. Conduct statistical analysis and data mining to extract insights from large, diverse datasets. Translate complex data findings into clear and actionable recommendations for both technical and non-technical audiences. Ensure data quality and integrity while building scalable solutions. Stay current with the latest developments in AI, machine learning, and data More ❯

solutions that transform the way people and businesses interact with data. With a strong focus on AI, machine learning, and advanced analytics, they are tackling complex challenges and driving data-led decision-making across their industry. The Opportunity: We are partnering with our client to find a talented Senior Data Scientist who is passionate about using … data to deliver real business impact. This is a fantastic opportunity to join a collaborative team where you'll work alongside engineers, product managers, and business stakeholders to shape data-driven products and strategies. Key Responsibilities: Develop and implement machine learning models and algorithms to solve real-world business challenges. Collaborate with cross-functional teams to identify opportunities … where data science can create value. Conduct statistical analysis and data mining to extract insights from large, diverse datasets. Translate complex data findings into clear and actionable recommendations for both technical and non-technical audiences. Ensure data quality and integrity while building scalable solutions. Stay current with the latest developments in AI, machine learning, and data More ❯