51 to 75 of 125 Senior Data Scientist Jobs in London

what is possible in research. We do impactful work with amazing organisations ranging from well-known brands to life-changing non-profits. Join us! About the role As a Senior Data Scientist you will be instrumental in shaping the technical backbone of the analytics function at Focaldata. In this role, you'll develop advanced R tools and … the implementation of cutting-edge modelling techniques. You'll collaborate on diverse projects, enhance our analytics infrastructure, and mentor team members in best practices. If you're passionate about data science, skilled in R, and eager to make an impact in public opinion and research, we'd love to hear from you. What you'll do This is a … focus will be: Build internal R packages to automate and standardise core tasks like weighting, modelling, and charting. Develop scalable tooling to support our research and analytics teams-from data pipelines to custom dashboards. Lead the development and deployment of advanced modelling techniques (e.g. multilevel regression, segmentation, random forest models, text analysis). Collaborate with the wider team on More ❯

Lead Data Scientist London – Hybrid (3 days a week) £90,000 - £115,000 + Benefits Our client is a precision marketing agency, leveraging data, technology, and creativity to fuel client growth. As part of their Marketing Sciences Data Science Team, you’ll play a pivotal role in revolutionising marketing strategies through cutting-edge Data Science … and Machine Learning solutions. This is still a largely hands on role, with around 20% team leadership. What You’ll Do Oversee data science projects, guide junior team members, and drive innovation. Build predictive models for campaign optimisation, customer segmentation, and price elasticity. Design and implement AI-powered solutions to solve complex marketing challenges. Use machine learning and statistical … in tools like Jupyter notebooks, Pandas, and PyTorch. Expertise in cloud platforms (AWS, Databricks, Snowflake) and containerisation tools (Docker, Kubernetes). Strong leadership skills with experience mentoring and managing data science teams. Deep knowledge of media measurement techniques, such as media mix modelling. Experience with advanced AI techniques, including NLP, GenAI, and CausalAI. Familiarity with MLFlow, API design (FastAPI More ❯

Senior Data Scientist - 6-Month Contract - Hybrid (London Preferred) Sector Focus: Online Publishing/Market Research Outside IR35 A data-driven organisation in the B2B content and research space is seeking a Senior Data Scientist for a 6-month contract. You'll lead the development of advanced analytics and AI/ML solutions … working with proprietary research and survey datasets to deliver high-impact, production-ready models and data products. Key Responsibilities Build and deploy ML models using Python or R in a cloud-based (Azure) environment. Collaborate with Product, Research, and Tech to turn data into MVPs and visual insights. Design innovative analytics using imperfect or matched datasets. Shape data workflows and support the development of scalable data infrastructure. Present actionable insights to both technical and non-technical stakeholders. What We're Looking For Strong track record delivering data science projects in industry or consulting. Hands-on experience with ML tools and cloud services (Azure preferred). Background in statistics and working with research/survey data. More ❯

Senior Data Scientist Senior Data Scientist £2.5 million seed funded Startup utilising Machine Learning Data Scientist opportunity with a seed funded startup (£2.5 million), utilising machine learning technology to create up to 15% profit margin gains for clients in the entertainment industry. You will join a small team of 2 in Data … business who enjoy discussing scientific research projects over lunch They plan on securing series A funding late this year. They code in Python, and React on the Frontend. Tech & Data Science stack: Kubernetes & Docker on Google Cloud Python 3: Pandas, RabbitMQ, Celery, Flask, SciPy, NumPy, Dash, Plotly, Matplotlib Javascript, React, Redux PostgreSQL, Redis Prometheus, Alert Manager, DataDog If you … joined the company in a Data Science role you would be working on sophisticated pricing algorithms which would enable companies in the entertainment industry to significantly increase profit margins. You'll use a raft of different techniques from timeseries analysis to bayesian statistics, reinforcement learning & Monte Carlo Simulations. Your Experience : You'll likely come from a strong quantitative degree More ❯

Senior Data Scientist £45,000-£65,000 London (Remote) iO Associates have partnered with a fast-growing data & AI product company. They are expanding their team and hiring a Senior Data Scientist to own technically rich projects, mentor junior team members, and drive the development of scalable, production-ready machine learning models. This … able to communicate insights clearly to both technical and non-technical audiences. Requirements: Advance Python (Pandas, NumPy, Scikit-learn, TensorFlow, and PyTorch) & SQL skills. (Snowflake a plus) Experience with Data warehousing and database technologies Solid machine learning experience (modelling to deployment) Cloud exposure (GCP/AWS/Azure) Excellent communication & stakeholder skills Leadership or mentoring experience in a dynamic …/start-up environment Responsibilities: Lead and deliver end-to-end data science projects Mentor and support junior data scientists Build and deploy scalable ML models Translate complex data into strategic insights Collaborate across teams to integrate data-driven solutions If you're ready to take a lead role in building data science that scales More ❯

Senior Data Scientist Location: Hybrid (London)Type: Full-timeStartup: A fast-growing AI startup We're workan ambitious, early-stage startup building innovative AI solutions that help businesses unlock insights, automate processes, and drive smarter decisions. Backed by leading investors and fueled by a passion for solving real-world problems, we're creating technology that makes AI … accessible and impactful - and we want an experienced Senior Data Scientist to join our journey. What You'll Do Lead the design, development, and deployment of advanced data science models and solutions. Collaborate closely with cross-functional teams (engineering, product, design) to translate complex business challenges into data-driven strategies. Explore large datasets to uncover … patterns, trends, and actionable insights. Develop prototypes and production-grade models for use cases such as predictive analytics, recommendation systems, and NLP applications. Mentor and guide junior data scientists and analysts. Stay up to date with the latest research, tools, and techniques in data science and machine learning. What We're Looking For 5+ years of experience in More ❯

Ready to lead the next generation of AI-powered solutions? We’re looking for a Senior Data Scientist to join our ambitious, impact-driven team based in London. You’ll play a key role in designing and deploying advanced machine learning systems that solve complex real-world challenges across a wide range of industries—from climate risk … product offerings. Flexible & Balanced : Competitive salary, hybrid working options, and a culture that supports your wellbeing and personal growth. What We’re Looking For: 3+ years of experience in data science, machine learning, or applied AI roles. Strong background in statistics, predictive modeling, and advanced machine learning techniques. Proven ability to lead end-to-end AI projects—from data More ❯

Ready to lead the next generation of AI-powered solutions? We’re looking for a Senior Data Scientist to join our ambitious, impact-driven team based in London. You’ll play a key role in designing and deploying advanced machine learning systems that solve complex real-world challenges across a wide range of industries—from climate risk … product offerings. Flexible & Balanced : Competitive salary, hybrid working options, and a culture that supports your wellbeing and personal growth. What We’re Looking For: 3+ years of experience in data science, machine learning, or applied AI roles. Strong background in statistics, predictive modeling, and advanced machine learning techniques. Proven ability to lead end-to-end AI projects—from data More ❯

WHO WE ARE At Choreograph, we deliver data-driven products and solutions that make advertising work better for people. Choreograph, an affiliate of GroupM, is a global data products and technology company, purpose-built for an era that demands a new approach to data management, usage, and brand growth. Data is the fuel that powers growth. … The companies who best leverage data are creating unbeatable advantages over their competitors while simultaneously connecting with customers more effectively. Our goal is to help future-focused businesses use their data in ways that meet savvy customers' expectations while building trust and understanding. About the Product and Engineering team The Choreograph Product & Engineering team is responsible for building … is an extensive roadmap of developments that is required to support all the use cases and channels. The team consists of several specialist areas, including product management, project management, data science, technical design, and technical account management. Who we are looking for As a Senior Data Scientist, you will contribute towards designing and developing data More ❯

Senior/Principal Data Scientist - Cross Indication London About Relation Relation is an end-to-end biotech company developing transformational medicines, with technology at our core. Our ambition is to understand human biology in unprecedented ways, discovering therapies to treat some of life's most devastating diseases. We leverage single-cell multi-omics directly from patient tissue … to advance the field of drug discovery. Your work will shape our culture, strategic direction, and, most importantly, impact patients' lives. Opportunity This is a unique opportunity for a data scientist to work on multi-omics data to drive transformative insights into drug discovery. As a member of the Cross Indication team, you will contribute to identifying … and validating drug targets through advanced data analysis and innovative computational approaches. The Cross Indication team collaborates across both Relations internal and partnership programmes, applying state-of-the-art computational methods to integrate diverse datasets. By combining biological insights with advanced data analytics, the team drives target discovery and validation initiative. Your responsibilities Develop and implement computational workflows More ❯

Senior/Principal Data Scientist - Single Cell London About Relation Relation is an end-to-end biotech company developing transformational medicines, with technology at our core. Our ambition is to understand human biology in unprecedented ways, discovering therapies to treat some of life's most devastating diseases. We leverage single-cell multi-omics directly from patient tissue … to advance the field of drug discovery. Your work will shape our culture, strategic direction, and, most importantly, impact patients' lives. Opportunity This is a unique opportunity for a data scientist to work on multi-omics and perturbational data to drive transformative insights into drug discovery. As a member of the Single Cell and Spatial Omics team … and embedded within one of the ML research teams, you will contribute advanced data analysis and domain expertise to challenge ML models that aim to predict and explain cellular decision-making in disease. Your responsibilities Develop and implement computational workflows for integrating and analysing multi-omics data. Design statistical models for analysing transcriptomics and other omics datasets. Use domain More ❯

Get started with your online application. Not quite your dream role? Sign up to get notified when the right vacancy comes along. The Data & Science Org At Deliveroo, we have an outstanding data science organization with a mission to enable high-quality human and machine decision-making. We collaborate across the company-product, business, and platform teams-using … analysis, experimentation, causal inference, and machine learning techniques. We are uniquely positioned to leverage data to improve decisions and enhance data literacy across Deliveroo. Data Scientists at Deliveroo report to our data science management team. We have an active community with guest lecturers, study groups, mentorship programs, and a robust technical review process, providing many learning … opportunities. Data Scientists can advance as technical leads or as people managers. Our data scientists come from diverse backgrounds, united by excellence. Many are formally trained in data science, and many are not. We celebrate diversity and have a dedicated data science diversity committee. As a data scientist at Deliveroo, your primary goal is More ❯

Senior Forecast Manager | Global Transport & Infrastructure Hub | West London (Hybrid) 📈 Data Science · Forecasting · Strategy · Aviation · Infrastructure Shape the future of one of the UK’s most high-profile transport hubs. We’re hiring a Senior Forecast Manager to lead the evolution of demand forecasting at a globally connected airport — a vital gateway serving tens of millions of … short-, medium-, and long-term forecasts across passenger demand and commercial impact. Build a next-generation forecasting model , leveraging machine learning, cloud computing, and advanced analytics. Present insight to senior executives, commercial partners, and regulators. Lead scenario planning for events ranging from weather disruptions to macroeconomic shocks. Mentor analysts and collaborate across strategy, finance, and operational teams. What you More ❯

industry- leading flexibility and last-minute availability, it's never too late to make any day extraordinary. Viator. One app, 300,000+ travel experiences you'll remember. As a Senior Data Scientist you will sit within the Experimentation Platform Team, where you'll be working on developing and maintaining our in-house experimentation platform running all experiments … work from one of our European offices (Oxford, London, Lisbon or Krakow) or to be fully-remote with regular travel to offices for collaboration. Responsibilities We are seeking a Data Scientist who will: Work proactively to identify opportunities for improvement in experimentation methodologies, ensuring best practices in line with the latest advances in the industry. Employ advanced statistical … techniques to ensure the validity and reliability of experimental findings. Build and maintain data pipelines relevant for experiment analysis. Identify and apply causal inference techniques to solve business problems. Work with cross-functional stakeholders in determining requirements for building a world-class experimentation platform. Key Requirements A postgraduate degree in statistics, machine learning, or similar OR demonstrable experience with More ❯

our internal pipeline and through collaborations with pharmaceutical companies. Our most advanced programs are currently in vivo optimization. About the Team and the Role We are looking for a Senior Computational Chemist with deep expertise in molecular interactions, structure-activity data analysis, protein and ligand preparation, and large-scale data interpretation to join our Virtual Screening team. … pharmaceutical, biotech, or CRO companies, with a focus on computational chemistry for small molecules in the hit identification phase. Deep experience in tools like RDKit, etc Python programming skills Data analysis skills Deep experience in scientific data analysis, ideally in drug discovery. Nice-to-Have Qualifications: Demonstrated experience leading multi-team scientific initiatives. Understanding of statistical methods and … exploratory data analysis. Knowledge of high-performance computing or cloud environments. At AQEMIA, we believe innovation thrives in the right environment. We're looking for someone who is: - Impact-driven & pragmatic: values results that are practical and scientifically rigorous. - Curious & eager to learn: keen on staying at the frontier of science. - Motivated by high challenges: enthusiastic about pushing boundaries More ❯

Lead Data Scientist London Up to £95,000 + bonus + benefits Our Client We're helping a global ecommerce marketplace build out their Data & Analytics teams. With over 20,000 employees in 41 locations around the world, our client traverses a number of consumer industries. They are passionate about transforming the ecommerce sector by investing in … their business; they aim to leave a positive impact on all stakeholders including employees, customers and partners, helping to build sustainable local communities on a global scale. The role Data Scientists are hands-on with building models that allow our client to hyper-personalise their customer experience. In addition this, at a leadership level, Data Scientists work as … internal consultants within the business, advising executive teams on all things concerning predictive analytics and machine learning. What a Lead Data Scientist role will involve A hybrid role which is both hands-on with building models and involves consulting throughout the wider business, serving as the Data Science SME for the core customer-facing platform. Collaborating with More ❯

The Principal, AI Data Scientist will be responsible for supporting the implementation of innovative, complex and transformative AI/ML/GenAI solutions across the areas of Clinical Trial Execution and Digital Healthcare across Jazz Research and Development. Essential Functions Support the development and implementation of AI/ML/GenAI solutions to optimize clinical trial operations, including … such areas as patient recruitment, patient retention, real-time data monitoring and automated data collection system build. Support the development and implementation GenAI applications for automated clinical trial documentation generation including such areas medical reports, clinical study reports, protocols and patient narratives. Support the development and implementation of Digital Healthcare applications for medical and scientific tools, RWE new … ways of generating real data, patients' engagement. Support the esign and develop predictive models and generative AI solutions using diverse healthcare data sources, including clinical trials data, electronic health records, wearable devices, patient-reported outcomes, HEOR data, phase IV studies. Collaborate with cross-functional teams including clinical operations, clinical development, data science and global medical More ❯

A small and rapidly growing Consultancy are looking for a Lead Data Scientist to join their expanding team - this is a hybrid role, requiring around 2-3 days per week either in the office or on client site, depending on requirements. Many of their clients are in the Public Sector, meaning you must be eligible for SC Clearance … in order to apply for this role. In this role, you will lead on client projects and provide them with subject matter expertise - you'll proactively identify opportunities for data science to be used to help solve their unique challenges, and will action this appropriately. This will involve working with varied data sources, and designing and implementing various … data science and machine learning techniques and algorithms, both on-premises and on the cloud, depending on what's best for each particular client. You'll communicate your findings and insight to the client, getting involved in presentations to uncover the "story" the data is telling, and therefore what action can be taken. This role would be well More ❯

A small and rapidly growing Consultancy are looking for a Lead Data Scientist to join their expanding team - this is a hybrid role, requiring around 2-3 days per week either in the office or on client site, depending on requirements. Many of their clients are in the Public Sector, meaning you must be eligible for SC Clearance … in order to apply for this role. In this role, you will lead on client projects and provide them with subject matter expertise - you'll proactively identify opportunities for data science to be used to help solve their unique challenges, and will action this appropriately. This will involve working with varied data sources, and designing and implementing various … data science and machine learning techniques and algorithms, both on-premises and on the cloud, depending on what's best for each particular client. You'll communicate your findings and insight to the client, getting involved in presentations to uncover the "story" the data is telling, and therefore what action can be taken. This role would be well 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 - 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 Reading - Hybrid Up to £70,000 About the Role I'm currently partnered with a global leader in data, insights, and consulting who are looking to bring on a Senior Data Scientist to join their highly respected data team. This is a high-impact opportunity focused on yield optimisation … using data science to drive better consistency, forecast accuracy, and operational efficiency. You'll work closely with both commercial and technical stakeholders to develop data-driven strategies that improve trading outcomes at scale. The team is well-established and growing, with excellent visibility across the business and a genuine appetite for data innovation. Key Responsibilities Optimise existing … yield and matching models for better consistency and forecasting performance. Use statistical analysis to uncover trends in historical trading data and recommend actionable improvements. Build and deploy scalable data science solutions that drive measurable business impact. Collaborate with developers and commercial leads to implement models into production systems. Present insights in a clear, impactful way to senior 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 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 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 ❯