1 to 25 of 57 Permanent Principal Data Scientist Jobs

Principal Data Scientist - FDE

Hiring Organisation
Microsoft
Location
Reading, Berkshire, United Kingdom
Salary
£ 80 K
United Kingdom, Berkshire, ReadingEmployment type: Full-TimeWork site: 0 days/week in-office – remoteRole type: Individual ContributorTravel: Less than 25%Profession: Research, Applied, & Data SciencesDiscipline: Data ScienceCompany: MicrosoftOverviewIn the Microsoft Frontier Company, you won’t just build software; you’ll deliver real outcomes for some … embedding directly within customer teams to solve their toughest challenges, side-by-side, and shipping production-ready solutions in days, not months. As a Principal Data Scientist, you will help transform how organizations use data, developing models, running experiments, and driving evidence-based decisions that have ...

Principal Data Scientist

Location
Greater London, England, United Kingdom
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 ...

Data Scientist - Principal

Location
Greater London, England, United Kingdom
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 ...

Senior Principal Data Scientist

Hiring Organisation
Novartis
Location
London, United Kingdom
Salary
£ 80 K
UK. Novartis is unable to offer relocation support for this role. Please only apply if this location is accessible for you. 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 ...

Principal Data Scientist & Machine Learning Researcher

Hiring Organisation
Hackajob Ltd
Location
Gloucester, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
Date Posted: 2026-05-28 Country: United Kingdom Location: Gloucester, South Gloucestershire Position Role Type: Hybrid Raytheon UK has a perm opportunity for a Principal Data Scientist and Machine Learning Researcher to join our Strategic Research Group (SRG). As a Principal Data Scientist … support with customer and stakeholder engagement and deliver technical solutions on internal and external projects. The Strategic Research Group (SRG) is a team of Data Science, Machine Learning and AI specialists who develop novel AI solutions to mission focussed problems. This opportunity is available in our Gloucester, Manchester ...

Principal Data Scientist – Precision Biomarkers in Skin Health

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 Data Scientist

Hiring Organisation
Vortexa
Location
London, United Kingdom
Salary
£ 100 K
growing international technology business founded to solve the immense information gap that exists in the energy industry. By using massive amounts of new satellite data and pioneering work in artificial intelligence, Vortexa creates an unprecedented view on the global seaborne energy flows in real-time, bringing transparency and efficiency … energy markets and society as a whole.Ingesting data from multiple external vastly different sources at hundreds of rich data points per second, moving terabytes of data while processing it in real time, running complex and complicated prediction and forecasting AI models while coupling their output into ...

Principal Data Scientist

Location
Greater London, England, United Kingdom
growing international technology business founded to solve the immense information gap that exists in the energy industry. By using massive amounts of new satellite data and pioneering work in artificial intelligence, Vortexa creates an unprecedented view on the global seaborne energy flows in real-time, bringing transparency and efficiency … energy markets and society as a whole. http://www.vortexa.com/Ingesting data from multiple external vastly different sources at hundreds of rich data points per second, moving terabytes of data while processing it in real time, running complex and complicated prediction and forecasting AI models ...

Principal Applied Data Scientist

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

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
Aristocrat Technologies
Location
London, United Kingdom
Salary
£ 80 K
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

Location
Greater London, England, United Kingdom
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 Do Lead high‐impact data science initiatives end‐to‐end, including problem ...

Principal Applied Data Scientist

Hiring Organisation
London Stock Exchange Group
Location
London, United Kingdom
Salary
£ 80 K
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 ...

Senior Principal Data Scientist

Hiring Organisation
Novartis
Location
Greater London, United Kingdom
Employment Type
Full Time
Salary
57050 to 105950 GBP Annually
UK. Novartis is unable to offer relocation support for this role. Please only apply if this location is accessible for you. 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 ...

Principal Data Scientist

Hiring Organisation
Marshmallow
Location
London, United Kingdom
Salary
£ 80 K
where curious, tenacious people win and grow together. If that sounds motivating, this could be the place for you.London (hybrid, 3 days in office)Data Science at MarshmallowOur Data Science team partners across the business to turn data into better decisions, smarter products, and simpler customer journeys. … work 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 the function and the broader ambition to automate more of the claims journey. Claims ...

Principal Data Scientist: Strategic Impact Leader

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 - Water Sector

Hiring Organisation
Stantec
Location
High Wycombe, Buckinghamshire, United Kingdom
Salary
Confidential
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 … Wycombe, London, Reading, Brighton or Southampton offices, with hybrid working allowing for a mix of in-office and home working.What You'll Be DoingLeading Data Science Initiatives – apply your expertise in data modelling, cleansing, and analytics to create innovative solutions that drive digital transformation.Deriving Powerful Insights – use predictive ...

Principal Data Scientist - Water Sector

Hiring Organisation
Stantec
Location
London, United Kingdom
Salary
Confidential
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 … Wycombe, London, Reading, Brighton or Southampton offices, with hybrid working allowing for a mix of in-office and home working.What You'll Be DoingLeading Data Science Initiatives – apply your expertise in data modelling, cleansing, and analytics to create innovative solutions that drive digital transformation.Deriving Powerful Insights – use predictive ...

Principal Data Scientist - Water Sector

Hiring Organisation
Stantec
Location
Henfield, West Sussex, United Kingdom
Salary
Confidential
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 … Wycombe, London, Reading, Brighton or Southampton offices, with hybrid working allowing for a mix of in-office and home working.What You'll Be DoingLeading Data Science Initiatives – apply your expertise in data modelling, cleansing, and analytics to create innovative solutions that drive digital transformation.Deriving Powerful Insights – use predictive ...

Principal Data Scientist - Water Sector

Location
Brighton, 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 … Wycombe, London or Brighton 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

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

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 & Machine Learning Researcher

Location
Manchester, England, United Kingdom
## 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 Researcher

Location
Greater London, England, United Kingdom
## 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 Researcher

Location
Bristol, England, United Kingdom
## 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 ...