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Principal Data Scientist jobs

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Principal data scientist

Hiscox
London

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 of robust, scalable, and high-quality solutions that enable fast, impactful delivery to stakeholders.

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2 days ago

Principal data scientist - personalization & recommender systems

NBCUniversal
London

A global media company is seeking a Principal Data Scientist to lead a team in developing machine learning solutions for personalization and user experience at its streaming service. The role involves designing algorithms, managing multiple priorities, and collaborating across various business areas. Candidates should have a Master’s or Ph D in a quantitative field and over 6 years of experience...

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16 hours ago
Hybrid

Principal data scientist

TieTalent
Wilmslow

Join to apply for the Principal Data Scientist role at Tie Talent2 days ago Be among the first 25 applicantsJoin to apply for the Principal Data Scientist role at Tie TalentBe the Data-Driven Heart of Our TransformationAt Pets at Home, were more than a retailer were a pet care powerhouse, spanning retail, veterinary, grooming and subscription services. As we transform our business through data,...

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2 days ago
Hybrid

Principal data scientist: scale ml for audiences (hybrid)

BBC
Salford

A leading broadcasting corporation in the UK is seeking a Principal Data Scientist to innovate in machine learning and data science. The role involves building scalable ML products as part of a collaborative team, influencing outcomes across the organization. Candidates should have strong data science knowledge, Python programming skills, and the ability to communicate complex concepts...

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2 days ago
Hybrid

Principal Applied Data Scientist - London Stock Exchange Group

London Stock Exchange
London

You will enjoy a strong compensation package, comprehensive benefits, and ongoing investment in career growth and skill development. - Industry leadership: This is an opportunity to be a founding member of the organization that's delivering brand-new products that democratize modeling and analytics solutions.

You will be part of a collaborative and creative culture where we encourage new ideas.

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6 hours ago
Hybrid

Principal data scientist

Leonardo Hotels
Bristol

You will be working in a dynamic environment with a team that is motivated to deliver innovative solutions to customers within defence, government and commercial sectors. We are after creative, passionate, technically savvy and personable people to help grow our practice and solve some of the most challenging, exciting and critical challenges to the UK’s digital landscape.

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a day ago
Hybrid

Principal data scientist: ml leader, mentor, hybrid role

Leonardo UK Ltd
Bristol

A global leader in Aerospace and Defence is seeking a Principal Data Scientist in Bristol. This hands-on role involves leading machine learning capabilities and managing a small team. Candidates should have strong data science experience, knowledge of programming languages, and cloud platforms. Competitive benefits include generous leave, pension scheme, mental health support, and opportunities...

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2 days ago
Hybrid

Principal data scientist

Pets at Home
London

Join to apply for the Principal Data Scientist role at Pets at Home1 week ago Be among the first 25 applicantsJoin to apply for the Principal Data Scientist role at Pets at HomeBe the Data-Driven Heart of Our TransformationAt Pets at Home, we’re more than a retailer — we’re a pet care powerhouse, spanning retail, veterinary, grooming and subscription services. As we transform our business through...

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2 days ago

Principal data scientist, ai security research

The Alan Turing Institute
London

Principal Data Scientist, AI Security ResearchJoin to apply for the Principal Data Scientist, AI Security Research role at The Alan Turing Institute.Role OverviewThe Defence & National Security Programme (D&NS) at the Alan Turing Institute is building a new research and innovation team focused on AI Security. The Principal will lead and grow the AI Security Group and develop an R&D portfolio...

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2 days ago

Head / principal data scientist, analytics & machine learning

Valinktx
London

SummaryResponsibility : Plan and execute Valink’s data strategy to build predictive models for drug discovery and drug positioningSalary : Competitive salary at Director or Principal level, depending on experienceStarting date : Jan-Feb 2026Location : White City, London, UKAbout UsValink Therapeutics is a spinout from the University of Oxford with a mission to revolutionise the field of...

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2 days ago
Hybrid

Principal data scientist - ai leader & mentor (hybrid)

Faculty
London

A leading AI consultancy in Greater London is seeking a Principal Data Scientist to lead high-impact projects and mentor fellow data scientists. The ideal candidate will have extensive experience in machine learning and generative AI, advanced coding skills in Python, and a passion for mentoring. As a technical authority, you will contribute to project bidding processes and drive innovation...

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2 days ago

Principal product data scientist

TripAdvisor LLC
City of London

You will shape the vision, set the technical direction, and drive strategic impact through innovative analytical solutions. This role is both highly technical and deeply collaborative, requiring excellence in leadership, communication, and cross-functional influence.

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2 days ago

Principal data scientist - healthcare

Kainos
Dartford

You will help set the direction for AI and data science across the business, driving the adoption of modern AI development practices and scalable, cloud‑native architectures at enterprise scale.

You will provide technical and thought leadership, engaging with C‑level and senior stakeholders to define architectural principles and strategic direction.

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2 days ago

Lead principal data scientist - ml, ai solutions

Hiscox
London

You will manage the delivery of impactful data science projects and mentor fellow data scientists. Your role is pivotal in enhancing underwriting capabilities and influencing the entire insurance value chain through advanced analytics and problem-solving techniques. Join a dynamic team and enjoy a supportive company culture with great employee benefits.

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2 days ago
Hybrid

Principal data scientist

BBC
Salford

Join to apply for the Principal Data Scientist role at BBC.Job DetailsBand: DContract Type: Permanent, Full-timeDepartment: BBC Product Group – Account & IdentityLocation: London / Cardiff / Newcastle / Salford / Glasgow – Hybrid working with 1 day a week expected in office base location.Proposed Salary Range: £73,000 - £83,000 (depending on relevant skills, knowledge and experience).Flexible...

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2 days ago
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Hybrid

Principal data scientist

Leonardo UK Ltd
Bristol

You will be working in a dynamic environment with a team that is motivated to deliver innovative solutions to customers within defence, government and commercial sectors. We are after creative, passionate, technically savvy and personable people to help grow our practice and solve some of the most challenging, exciting and critical challenges to the UK’s digital landscape.

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2 days ago

Principal data scientist: ai for drug discovery

Valinktx
London

A leading biotechnology firm is seeking a Principal Data Scientist to shape and execute data strategies for drug discovery. This role involves building predictive models and integrating datasets to enhance drug candidate testing. Candidates should have a Ph D or MSc, with over 5 years of relevant experience, machine learning expertise, and strong programming skills in Python and R. Flexible...

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2 days ago

Principal data scientist - healthcare

Kainos
Belfast

You will help set the direction for AI and data science across the business, driving the adoption of modern AI development practices and scalable, cloud‑native architectures at enterprise scale.

You will provide technical and thought leadership, engaging with C‑level and senior stakeholders to define architectural principles and strategic direction.

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2 days ago

Principal data scientist: recommender & personalization lead

NBCUniversal
Brentford

A leading media and entertainment company in the UK is seeking a Principal Data Scientist to lead advancements in machine learning and personalization at their streaming service. Responsibilities include designing algorithmic solutions and managing data science-driven projects. Ideal candidates will have a Master or Ph D in a quantitative field and 6+ years of experience, particularly in...

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2 days ago

Principal data scientist

NBCUniversal
London

NBCUniversal is one of the world's leading media and entertainment companies. We create world-class content, which we distribute across our portfolio of film, television, and streaming, and bring to life through our global theme park destinations, consumer products, and experiences. We own and operate leading entertainment and news brands, including NBC, NBC News, NBC Sports, Telemundo, NBC Local...

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16 hours ago
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