23 of 23 Permanent Principal Data Scientist Jobs

Principal Data Scientist

Hiring Organisation
Appcast
Location
London, UK
Type:PermanentBuild a brilliant future with HiscoxAs a Principal Data Scientist at Hiscox, you will be an integral part of a dynamic technical team, strategically focused on leveraging data science across our diverse business functions. While your expertise will be pivotal in transforming our underwriting capabilities … value chain, championing a multi-disciplinary approach to complex problem-solving.You will lead the end-to-end delivery of our most significant and complex data science initiatives, driving technical strategy, architecture, and best practices. You'll be a key driver in defining and upholding technical standards, ensuring the development ...

Senior Principal Data Scientist

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Salary Range £57,050.00 - £105,950.00 Location and Working Arrangement London, UK. Hybrid Job Description Summary As a Senior Principal Data Scientist in the Medical Affairs Advanced Quantitative Sciences group, you will be responsible for the discussion and implementation of data science methodologies applied to patient … level data (including various clinical, real-world, and biomarker data) across clinical development. You will combine your data science and AI skills and your scientific knowledge in biology or medicine or statistics to enrich drug development decisions in close collaboration with internal and external partners. Major accountabilities ...

Principal Data Scientist – Precision Biomarkers in Skin Health

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Principal Data Scientist - Precision Biomarkers in Skin Health July 21, 2026 Share this post: Company description Mitra Bio is building the future of skincare through epigenetics, longevity science, and data. Backed by Khosla Ventures, Illumina, and Innovate UK, we help people better understand their skin over time … using simple, non-invasive skin sampling and advanced data analysis. Our goal is to make highly personalised skincare more effective, accessible, and science-driven. As we continue to grow, we're looking for a Principal Data Scientist - Precision Biomarkers in Skin Health to play a pivotal ...

Principal Applied Data Scientist

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
## Principal Applied Data ScientistApplylocations: GBR-London-10 Paternoster Squaretime type: Full timeposted on: Posted 17 Days Agojob requisition id: R0118411Are you a hands-on data scientist with deep expertise in NLP and LLMs, strong Python coding skills, and a track record of deploying models … building real-world AI solutions that are used by actual customers? If so, we'd love to talk to you!**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 ...

Principal Data Scientist

Hiring Organisation
Jobleads-UK
Location
United Kingdom
Role overview The Principal Data Scientist will lead significant data science work across AWTG and client programmes, shaping technical direction, standards and delivery approaches. The role requires deep expertise in data science, strong leadership and the ability to turn advanced analytics into organisational impact. … will work with multidisciplinary teams across data, AI, software engineering, product, QA and delivery to create practical outcomes for clients and end users. Key responsibilities Lead the scoping, design and delivery of complex data science products, models and analytical solutions. Set standards for modelling, validation, reproducibility, coding, documentation ...

Principal Data Scientist

Hiring Organisation
Appcast
Location
London, UK
significant impact on the gaming industry? At Aristocrat, we aim to bring happiness to life through the power of play. We seek a Principal Data Scientist to help us reach our ambitious goals. You will have a vital role in enhancing gameplay, boosting player engagement, and improving … business outcomes with your advanced data expertise. This opportunity allows you to work on innovative projects, collaborate with diverse teams, and guide critical initiatives that will develop the future of our leading games.What You'll DoLead high-impact data science initiatives end-to-end, including problem framing, methodology ...

Principal Data Scientist | Media Measurement (MM)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
regulators. A core component of our measurement approach is panel-based methodologies, leveraging household and individual panels to ensure accurate, representative audience insights. Census data is integrated across several solutions to further enhance measurement quality. Job Description As a Principal Data Scientist, you shape high‐impact … client‐relevant Data Science concepts and ensure strategic coherence across teams and domains. This role is a perfect playground for highly experienced, concept‐driven minds who enjoy influencing direction, clarifying complexity, and shaping how Data Science creates value at scale. You will work on analytics, Data Science ...

Senior Principal Data Scientist, Medical Analytics & AI

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Novartis Pharmaceuticals UK Ltd. is seeking a Senior Principal Data Scientist to lead data science methodologies on patient-level and biomarker data across clinical development. You will translate business questions into analytics, build robust pipelines with R, Python, and SQL, and collaborate with internal ...

Principal Data Scientist

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
ensures you can deliver impactful work and drive change. Explore our Culture Handbook to find out more. Move our mission, and your career, forward. Data Science at Marshmallow Our Data Science team partners across the business to turn data into better decisions, smarter products, and simpler customer … closely with Product, Engineering, and Operations to build and ship models and AI systems that are reliable in production and deliver measurable impact. Within Data Science, this role sits in Claims , supporting Claims Fraud and the broader ambition to automate more of the claims journey. Claims ...

Principal Data Scientist: Strategic Impact Leader

Hiring Organisation
Jobleads-UK
Location
United Kingdom
AWTG Ltd. in the United Kingdom is looking for a Principal Data Scientist to lead data science efforts across multiple programmes. This role demands expertise in data science, leadership, and the capability to turn analytics into impactful business results. The ideal candidate will excel … designing scalable data science solutions while collaborating with cross-functional teams. Strong skills in machine learning and stakeholder communication are essential. #J-18808-Ljbffr ...

Principal Data Scientist - Healthcare

Hiring Organisation
Kainos
Location
Birmingham, UK
Employment Type
Full-time
collaboration.Ready to make your mark? Join us and be part of something bigger.Kainos is recognised as one of the UK's leading AI and data businesses, with a decade-long track record of delivering impactful, production-grade AI solutions for clients across government, healthcare, defence, and commercial sectors. Kainos … forefront of AI innovation, trusted by Microsoft, AWS, and others to deliver advanced AI and data solutions at citizen scale. Our 150-strong AI and Data Practice brings together deep expertise in machine learning, generative AI, agentic AI and data. We are pioneers in responsible AI, having authored ...

Principal Data Scientist - Healthcare

Hiring Organisation
Kainos
Location
Belfast, UK
Employment Type
Full-time
make your mark? Join us and be part of something bigger. Kainos is recognised as one of the UK's leading AI and data businesses, with a decade-long track record of delivering impactful, production-grade AI solutions for clients across government, healthcare, defence, and commercial sectors. Kainos … forefront of AI innovation, trusted by Microsoft, AWS, and others to deliver advanced AI and data solutions at citizen scale. Our 150-strong AI and Data Practice brings together deep expertise in machine learning, generative AI, agentic AI and data. We are pioneers in responsible AI, having authored ...

Principal Data Scientist - Healthcare

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
make your mark? Join us and be part of something bigger. Kainos is recognised as one of the UK's leading AI and data businesses, with a decade-long track record of delivering impactful, production-grade AI solutions for clients across government, healthcare, defence, and commercial sectors. Kainos … forefront of AI innovation, trusted by Microsoft, AWS, and others to deliver advanced AI and data solutions at citizen scale. Our 150-strong AI and Data Practice brings together deep expertise in machine learning, generative AI, agentic AI and data. We are pioneers in responsible AI, having authored ...

Principal Data Scientist - Water Sector

Hiring Organisation
Jobleads-UK
Location
Reading, England, United Kingdom
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 - Water Sector

Hiring Organisation
Jobleads-UK
Location
Southampton, England, United Kingdom
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 (Fine-tuning & Model Optimisation)

Hiring Organisation
Experis
Location
Nationwide, United Kingdom
Employment Type
Permanent
Salary
£110000 - £130000/annum
Principal Data Scientist (Fine-tuning & model optimisation) - AI Models Lead Hybrid: Remote Paying up to £130,000 + bens Permanent Experis are delighted to be partnering with a highly successful and growing software organisation as they invest heavily in building a cutting-edge AI capability … fine-tuned models to support multiple product use cases Owning experiment design and reproducibility, including tracking, benchmarking, and iteration cycles Working closely with data, domain and product teams to translate real-world requirements into model behaviour Leading, mentoring, and growing a team of ML Engineers while remaining hands ...

Principal Data Scientist

Hiring Organisation
Jobleads-UK
Location
Norwich, England, United Kingdom
Principle Data Scientist Location: Norwich or Leeds Salary: Circa: £95k Are you someone who thrives on leading high-performing Data Science teams, shaping commercial strategy, and driving innovation through advanced analytics, machine learning and AI to tackle fraud and financial crime challenges? A bit about … This is a senior leadership role within Aviva's Data Science function, responsible for driving the strategic application of Data Science, Machine Learning and AI across Fraud and Financial Crime. Working with one of the richest insurance datasets in the industry, you'll lead a team of Data ...

Principal AI Data Scientist

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
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. ...

Principal Product Data Scientist - Operations Delivery Intelligence

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
Principal Product Data Scientist A career without limits As the nation’s flag carrier, we take great pride in connecting Britain with the world and the world with Britain. It’s something we’ve been doing for over 100 years, ever since we launched the world … real‐world decision‐making challenges across the airline. What you’ll do: Act as the technical owner of one or more production‐grade data science product codebases Lead the end‐to‐end delivery of decision‐support software across the full product lifecycle Understand complex operational business problems ...

Principal Product Data Scientist — Strategy & Experimentation

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Tripadvisor is seeking a Principal Product Data Scientist to define the Data Science strategy for Product, driving advanced analytics and AI to shape product development. You will serve as a trusted advisor to senior leadership, embedding data-driven decision making and champion experimentation and causal … inference, while mentoring other data scientists to foster technical excellence. #J-18808-Ljbffr ...

Principal Data Scientist - AI, MLOps and GenAI Lead

Hiring Organisation
17918
Location
United Kingdom
architecture of AI solutions, in addition to building and running an AI platform to deliver business-specific Use Case solutions. Collaborating with the Data Platform to team in ingesting and transforming data from multiple systems, modeling data, and engineering data marts to create reusable data … operating a company wide agentic AI solution platform to help scale up AI capabilities across all functions and regions. Building AI models and a data science platform that enables Rentokil to derive significant value from AI, from machine learning to gen AI and beyond, and ensuring the quality ...

Principal Data Scientist - AI, MLOps and GenAI Lead

Hiring Organisation
Hackajob Ltd
Location
Crawley, West Sussex, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
architecture of AI solutions, in addition to building and running an AI platform to deliver business-specific Use Case solutions. Collaborating with the Data Platform to team in ingesting and transforming data from multiple systems, modeling data, and engineering data marts to create reusable data … operating a company wide agentic AI solution platform to help scale up AI capabilities across all functions and regions. Building AI models and a data science platform that enables Rentokil to derive significant value from AI, from machine learning to gen AI and beyond, and ensuring the quality ...

Posted 1 day ago London, United Kingdom Tripadvisor Principal Product Data Scientist

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Here? Tripadvisor connects people to experiences worth sharing and aims to be the world’s most trusted source for travel and experiences. The Product Data Science function plays a pivotal role in leveraging data to empower decision making across the organization. What Will You Do? As a Principal Product Data Scientist at Tripadvisor, you will lead and define the Data Science strategy for Product ensuring advanced analytics and AI methodologies drive product development. You will serve as a trusted advisor to senior leadership embedding data-driven decision making at the highest levels. Additionally ...