1 to 25 of 30 Permanent Principal Data Scientist Jobs in England

think big and bring your ambition to work every day, which is why, at British Airways the sky is never the limit. The role: Principal Data Scientist - Finance & Transformation As a senior leader within the Data & AI function, reporting to the Head of Data Delivery … Principal Data Scientist is accountable for the end-to-end delivery and lifecycle management of high-value data science products or initiatives that support or automate decision-making across critical business areas. Operating within Agile cross-functional squads, they lead teams to scope, design, build, deploy ...

think big and bring your ambition to work every day, which is why, at British Airways the sky is never the limit. The role: Principal Data Scientist - Finance & TransformationAs a senior leader within the Data & AI function, reporting to the Head of Data Delivery … Principal Data Scientist is accountable for the end-to-end delivery and lifecycle management of high-value data science products or initiatives that support or automate decision-making across critical business areas. Operating within Agile cross-functional squads, they lead teams to scope, design, build, deploy ...

vibrant place to work. We might not be for everyone, but we could be perfect for you. About the job We are seeking a Principal Data Scientist who will play a crucial role in driving Autotrader's transformation into a data science-driven organisation. … Principal Data Scientist you will be responsible for the direction of Data Science at Autotrader. You will join a cross-functional collaborative squad focussed around a set of products or a services. With your experience and research skills you will spot the opportunities for Data ...

Description - Principal Data Scientist - Optimisation Engineering (17233) Job Description Principal Data Scientist - Optimisation Engineering ( 17233 ) Description Principal Data Scientist - Optimization Engineering We are easyJet – a FTSE-250 listed, £multi-billion low-cost airline that serves tens of millions of customers every … complex disruption-management and crew/roster optimisation challenges. You’ll translate operational problems into scalable software and optimisation solutions, partnering closely with product, data/operations research (OR), and customer stakeholders. The role blends people leadership with hands‐on technical direction across architecture, delivery, quality, and reliability. Requirements ...

expected to take real ownership and move fast. When something isn't working, we challenge our thinking and pivot. Responding to the data and staying agile matters far more than being right the first time." Learn how we work in London and Budapest If you don’t see anything … that fits you today, check back soon. We’re scaling quickly, putting up new roles every week. Principal Data Scientist Location London Employment Type Full time Location Type Hybrid Department Data Data Science We’re on a mission to make migration easy. We started building ...

Principal Data Scientist Salary £85,000 (Depending on skills and experience) Aviva are looking for a dynamic Principal Data Scientist to support our Retail team. An exciting opportunity has arisen to join our high-profile data science team. The insurance industry is evolving … investing in strengthening machine learning and analytics as a distinctive capability. The team is recognised as a centre of excellence in our Global Data Science Department – providing new data-driven insights that improve decision making across the Aviva Group. A bit about the job: You will ...

Principal Data Scientist page is loaded## Principal Data Scientistremote type: Hybridlocations: London, United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: R0020855## What You'll Do* Lead high-impact data science initiatives end-to-end, including problem framing, methodology selection, experiment development, implementation … Drive scalable experimentation with A/B and Multi-armed bandit testing frameworks, power analysis, variance reduction, and online-offline alignment.* Work together with Data Engineering, MLOps, and Game Tech teams to guarantee dependable data foundations, feature accessibility, and model deployment pathways.* Build internal data products ...

everyone has access to healthcare today and for generations to come. Join Roche, where every voice matters. The Position This role is in Analytical Data Science, a core function within Product Development Data Sciences (PDD) that provides strategic leadership and scientific rigor across Development at Roche. PDD Analytical … Data Science teams are mobilized across the portfolio to generate data-driven insights, identify opportunities for scale, and implement impactful solutions. PDD Analytical Data Science is recognized as a leading hub for top industry talent, operating as an agile workforce to deliver regulatory commitments across the portfolio. ...

hands-on data scientist with deep expertise in NLP and LLMs, strong Python coding skills, and a track record of deploying models to production? Do you thrive in building real-world AI solutions that are used by actual customers? If so, we'd love to talk … ROLE SUMMARY: As a Principal Data Scientist (individual contributor), you will play a hands-on role in designing, building, and deploying scalable AI solutions that go beyond prototypes and are actively used in production. You'll work closely with collaborative teams to co-develop innovative products ...

complex challenges, uncovering insights, and driving innovation with advanced analytics? If so, we could have the perfect opportunity for you! We’re seeking a Principal Data Scientist to join our award-winning digital team at Stantec. You will be working alongside leading Analysts and Data Engineering … Reading, Brighton or Southampton offices, with hybrid working allowing for a mix of in‐office and home working. What You'll Be Doing Leading Data Science Initiatives – apply your expertise in data modelling, cleansing, and analytics to create innovative solutions that drive digital transformation. Deriving Powerful Insights ...

## Principal Data Scientist & Machine Learning ResearcherApplylocations: Gloucester, South Gloucestershire: Manchester, Lancashire: London, Londontime type: Full timeposted on: Posted 30+ Days Agojob requisition id: 01804570**Date Posted:**2026-02-23**Country:**United Kingdom**Location:**Gloucester, South Gloucestershire**Position Role Type:**Unspecified**Gloucester, London or Manchester****Hybrid role … safer and more connected world.**About the role:** This role is within the Strategic Research Group (SRG). The SRG are a team of Data Science, Machine Learning and AI specialists who develop novel AI solutions to mission focussed problems. In this role you will work with high levels ...

## Principal Data Scientist & Machine Learning ResearcherApplylocations: Gloucester, South Gloucestershire: Manchester, Lancashire: London, Londontime type: Full timeposted on: Posted 30+ Days Agojob requisition id: 01804570**Date Posted:**2026-02-23**Country:**United Kingdom**Location:**Gloucester, South Gloucestershire**Position Role Type:**Unspecified**Gloucester, London or Manchester****Hybrid role … safer and more connected world.**About the role:** This role is within the Strategic Research Group (SRG). The SRG are a team of Data Science, Machine Learning and AI specialists who develop novel AI solutions to mission focussed problems. In this role you will work with high levels ...

## Principal Data Scientist & Machine Learning ResearcherApplylocations: Gloucester, South Gloucestershire: Manchester, Lancashire: London, Londontime type: Full timeposted on: Posted 30+ Days Agojob requisition id: 01804570**Date Posted:**2026-02-23**Country:**United Kingdom**Location:**Gloucester, South Gloucestershire**Position Role Type:**Unspecified**Gloucester, London or Manchester****Hybrid role … safer and more connected world.**About the role:** This role is within the Strategic Research Group (SRG). The SRG are a team of Data Science, Machine Learning and AI specialists who develop novel AI solutions to mission focussed problems. In this role you will work with high levels ...

Marshmallow is seeking a Principal Data Scientist in London to lead data science across Claims Fraud, designing and deploying ML and Generative AI systems for automated claims processing. You will collaborate with product and engineering to scale decisions, while ensuring robust, testable solutions and measurable improvements. ...

Stantec is seeking a Principal Data Scientist to join our digital team in the UK. You will collaborate with analysts and data engineers to shape digital strategies, deliver advanced analytics, and lead data science initiatives across client projects in the water sector. You will deploy … cloud-based analytics on Azure, build predictive models, and create data visualisations that drive smarter decisions. Hybrid working from multiple offices enables flexible collaboration and client delivery. #J-18808-Ljbffr ...

British Airways is seeking a Principal Data Scientist for the Finance & Transformation function to drive end-to-end data science products. You will lead Agile squads, build production-ready models, and mentor teams while aligning with business goals and governance. You will steer data-driven ...

leading gaming company in London is looking for a Principal Data Scientist to lead high-impact data science initiatives. The role involves building machine learning solutions that drive player engagement and retention. Candidates should have a PhD or MSc and over 5 years of experience delivering … data products in the gaming industry. The position offers a hybrid work model and opportunities for professional growth in a supportive environment. #J-18808-Ljbffr ...

opportunity for meaningful innovation and are proud to set the gold‐standard for marrying technical excellence with safe deployment. About the role As a Principal Data Scientist at Faculty, you will serve as a technical leader and domain expert who owns and drives the delivery … most technically complex, high‐impact projects and programmes for our most important clients. You also will set the technical direction for the data science team, mentor, and develop them so our data scientists remain best in class. This position focuses on deep individual contribution and technical excellence, influencing ...

travel is data. We slice it, we dice it, and we use it to empower our decision making. What You will do: As a Principal Data Scientist you will be a leading individual contributor responsible for how experimentation works across the organisation. You will lead through technical … well, where traffic is thin or the outcomes that matter take months to appear. You will: Set the technical standard for experimentation across Product Data Science, from conventional A/B testing to quasi-experimental and Bayesian methods, and make it practical through protocols, frameworks and tooling. Partner with ...

Tripadvisor seeks a Principal Data Scientist in London to lead experimentation strategy and measurement standards across products. You will set technical direction, mentor teams, and partner with Product, Engineering and Data Platform to raise speed and rigor in experiments. You will own complex measurement questions, develop ...

CoMind is building a non-invasive neuromonitoring platform aimed at transforming brain health diagnosis and treatment. As Principal Data Scientist, you will set methodological direction, drive the most complex problems, and lead data science best practices with a strong emphasis on uncertainty and calibration. You will ...

leading AI consultancy in Greater London is looking for a Principal Data Scientist to lead complex projects and mentor a talented team. The ideal candidate has a strong background in machine learning, particularly in Generative AI, and extensive experience within financial services. Responsibilities include serving ...

Blue Light Card Ltd in London is seeking a Principal Data Scientist to lead experimentation and product insight, setting standards for tests, learning and scaling. You’ll mentor the Product Data Science team and shape best practice. You’ll partner with Product Managers and Engineering … translate member behavior into actionable insight, own metrics and data storytelling for executives, and build data products that drive strategy. #J-18808-Ljbffr ...

About the Role We're seeking a versatile Principal Data scientist who can work across the full stack of Anaplan AI applications, from model integration and prompt engineering to building intuitive user interfaces. In this role, you will have a direct impact on our industry‐leading platform … Generative AI Architecture: Architect GenAI solutions, focusing on fine‐tuning proprietary and open‐source Large Language Models (LLMs) via Transformer architectures for specialised enterprise data tasks. Next‐Gen Interfaces: Design and integrate Conversational AI and autonomous Agentic AI workflows, creating intuitive experiences that can independently execute complex planning tasks. ...

more than travel is data. We slice it, we dice it, and we use it to empower our decision making. About the RoleAs a Principal Product Data Scientist, you will operate as the most senior technical leader in the Product Data Science function. You will shape … both highly technical and deeply collaborative, requiring excellence in leadership, communication, and cross-functional influence. What You will do: Lead and define the Data Science strategy for Product, ensuring that advanced analytics, data science, and AI methodologies are central to how we build great products and improve customer ...