Principal Data Scientist Jobs in London

1 to 25 of 28 Principal Data Scientist Jobs in London

Principal Data Scientist

London, UK
Harnham
Principal Data Scientist Hybrid - London (3 days a week) Up to £80,000 We are working with ahousehold fashion brand. They are on the lookout for a Principal Data Scientist to join its growing Data & Analytics team. With a presence across a thriving … eCommerce platform, mobile app, and 300+ retail stores, this is your chance to join an exciting team. As Principal Data Scientist, you’ll lead the data science function, supporting customer understanding, marketing effectiveness, and personalisation. From optimising campaign performance to driving loyalty and segmentation strategies, you … ll help put data at the heart of every customer interaction. The Role: Lead, mentor, and grow a team of Data Scientists and Analysts focused on customer and marketing use cases. Build and deploy models that support personalisation, customer segmentation, lifetime value prediction, churn prevention, and marketing attribution. More ❯
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Principal Data Scientist

London, United Kingdom
Hybrid / WFH Options
Datatech Analytics
Principal Data Scientist - Remote Remote Working - UK Home-based with very occasional travel into the office £52,737 - £66,197 (National Framework) or £58,409- £71,869 (London Framework - if you are London office based or homebased and live within the boundary of the M25) Plus an … those with current UK working rights for this role, this client cannot offer visa sponsorship. A new and exciting opportunity has arisen for a Principal Data Scientist with a strong background in Advanced AI (Artificial Intelligence) to lead, mentor and up skill a team of Data Scientists. Collaborating cross-functionally the role will focus on the delivery of AI and Data Science programmes across the organisation, driving Data Quality, Data Governance and Best Practice. Proven and demonstratable experience of Python coding and clouding computing is required coupled with fantastic communication skills to More ❯
Employment Type: Permanent, Work From Home
Salary: £70,000
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Principal Data Scientist - Marketing

London Area, United Kingdom
Harnham
PRINCIPAL DATA SCIENTIST – HYBRID (London, 3 days a week) £100,000–£125,000+ based on experience THE COMPANY Join a high-impact data science team at a global marketing and customer experience company. As a Principal Data Scientist, you’ll lead the development … still get stuck into code. You’ll partner closely with engineers, strategists, and creatives in a genuinely cross-functional setting. THE ROLE As a Principal Data Scientist, you will: Lead the design, implementation, and deployment of advanced ML solutions across the full stack — from data engineering … steer high-impact projects from ideation to delivery, aligning technical strategy with business objectives Serve as a technical mentor to mid-level and junior data scientists Represent the data science function in client conversations and cross-functional planning Maintain a high bar for clean, testable code and scalable More ❯
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Principal Data Scientist - Marketing

london, south east england, United Kingdom
Harnham
PRINCIPAL DATA SCIENTIST – HYBRID (London, 3 days a week) £100,000–£125,000+ based on experience THE COMPANY Join a high-impact data science team at a global marketing and customer experience company. As a Principal Data Scientist, you’ll lead the development … still get stuck into code. You’ll partner closely with engineers, strategists, and creatives in a genuinely cross-functional setting. THE ROLE As a Principal Data Scientist, you will: Lead the design, implementation, and deployment of advanced ML solutions across the full stack — from data engineering … steer high-impact projects from ideation to delivery, aligning technical strategy with business objectives Serve as a technical mentor to mid-level and junior data scientists Represent the data science function in client conversations and cross-functional planning Maintain a high bar for clean, testable code and scalable More ❯
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Principal Data Scientist (Remote)

West London, UK
Hybrid / WFH Options
Datatech Analytics
Principal Data Scientist - Remote Remote Working - UK Home-based with very occasional travel into the office £52,737 - £66,197 (National Framework) or £58,409- £71,869 (London Framework – if you are London office based or homebased and live within the boundary of the M25) Plus an … those with current UK working rights for this role, this client cannot offer visa sponsorship. A new and exciting opportunity has arisen for a Principal Data Scientist with a strong background in Advanced AI (Artificial Intelligence) to lead, mentor and up skill a team of Data Scientists. Collaborating cross-functionally the role will focus on the delivery of AI and Data Science programmes across the organisation, driving Data Quality, Data Governance and Best Practice. Proven and demonstratable experience of Python coding and clouding computing is required coupled with fantastic communication skills to More ❯
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Principal Data Scientist (Remote)

Central London, UK
Hybrid / WFH Options
Datatech Analytics
Principal Data Scientist - Remote Remote Working - UK Home-based with very occasional travel into the office £52,737 - £66,197 (National Framework) or £58,409- £71,869 (London Framework – if you are London office based or homebased and live within the boundary of the M25) Plus an … those with current UK working rights for this role, this client cannot offer visa sponsorship. A new and exciting opportunity has arisen for a Principal Data Scientist with a strong background in Advanced AI (Artificial Intelligence) to lead, mentor and up skill a team of Data Scientists. Collaborating cross-functionally the role will focus on the delivery of AI and Data Science programmes across the organisation, driving Data Quality, Data Governance and Best Practice. Proven and demonstratable experience of Python coding and clouding computing is required coupled with fantastic communication skills to More ❯
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Principal Data Scientist (Remote)

City of London, London, United Kingdom
Hybrid / WFH Options
Datatech Analytics
Principal Data Scientist - Remote Remote Working - UK Home-based with very occasional travel into the office £52,737 - £66,197 (National Framework) or £58,409- £71,869 (London Framework – if you are London office based or homebased and live within the boundary of the M25) Plus an … those with current UK working rights for this role, this client cannot offer visa sponsorship. A new and exciting opportunity has arisen for a Principal Data Scientist with a strong background in Advanced AI (Artificial Intelligence) to lead, mentor and up skill a team of Data Scientists. Collaborating cross-functionally the role will focus on the delivery of AI and Data Science programmes across the organisation, driving Data Quality, Data Governance and Best Practice. Proven and demonstratable experience of Python coding and clouding computing is required coupled with fantastic communication skills to More ❯
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Principal Data Scientist (Remote)

East London, London, United Kingdom
Hybrid / WFH Options
Datatech Analytics
Principal Data Scientist - Remote Remote Working - UK Home-based with very occasional travel into the office £52,737 - £66,197 (National Framework) or £58,409- £71,869 (London Framework – if you are London office based or homebased and live within the boundary of the M25) Plus an … those with current UK working rights for this role, this client cannot offer visa sponsorship. A new and exciting opportunity has arisen for a Principal Data Scientist with a strong background in Advanced AI (Artificial Intelligence) to lead, mentor and up skill a team of Data Scientists. Collaborating cross-functionally the role will focus on the delivery of AI and Data Science programmes across the organisation, driving Data Quality, Data Governance and Best Practice. Proven and demonstratable experience of Python coding and clouding computing is required coupled with fantastic communication skills to More ❯
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Principal Data Scientist (Remote)

London Area, United Kingdom
Hybrid / WFH Options
Datatech Analytics
Principal Data Scientist - Remote Remote Working - UK Home-based with very occasional travel into the office £52,737 - £66,197 (National Framework) or £58,409- £71,869 (London Framework – if you are London office based or homebased and live within the boundary of the M25) Plus an … those with current UK working rights for this role, this client cannot offer visa sponsorship. A new and exciting opportunity has arisen for a Principal Data Scientist with a strong background in Advanced AI (Artificial Intelligence) to lead, mentor and up skill a team of Data Scientists. Collaborating cross-functionally the role will focus on the delivery of AI and Data Science programmes across the organisation, driving Data Quality, Data Governance and Best Practice. Proven and demonstratable experience of Python coding and clouding computing is required coupled with fantastic communication skills to More ❯
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Principal Data Scientist (Remote)

Central London / West End, London, United Kingdom
Hybrid / WFH Options
Datatech Analytics
Principal Data Scientist - Remote Remote Working - UK Home-based with very occasional travel into the office £52,737 - £66,197 (National Framework) or £58,409- £71,869 (London Framework – if you are London office based or homebased and live within the boundary of the M25) Plus an … those with current UK working rights for this role, this client cannot offer visa sponsorship. A new and exciting opportunity has arisen for a Principal Data Scientist with a strong background in Advanced AI (Artificial Intelligence) to lead, mentor and up skill a team of Data Scientists. Collaborating cross-functionally the role will focus on the delivery of AI and Data Science programmes across the organisation, driving Data Quality, Data Governance and Best Practice. Proven and demonstratable experience of Python coding and clouding computing is required coupled with fantastic communication skills to More ❯
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Principal Data Scientist (Remote)

london, south east england, United Kingdom
Hybrid / WFH Options
Datatech Analytics
Principal Data Scientist - Remote Remote Working - UK Home-based with very occasional travel into the office £52,737 - £66,197 (National Framework) or £58,409- £71,869 (London Framework – if you are London office based or homebased and live within the boundary of the M25) Plus an … those with current UK working rights for this role, this client cannot offer visa sponsorship. A new and exciting opportunity has arisen for a Principal Data Scientist with a strong background in Advanced AI (Artificial Intelligence) to lead, mentor and up skill a team of Data Scientists. Collaborating cross-functionally the role will focus on the delivery of AI and Data Science programmes across the organisation, driving Data Quality, Data Governance and Best Practice. Proven and demonstratable experience of Python coding and clouding computing is required coupled with fantastic communication skills to More ❯
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Principal Data Scientist (Remote)

london (city of london), south east england, United Kingdom
Hybrid / WFH Options
Datatech Analytics
Principal Data Scientist - Remote Remote Working - UK Home-based with very occasional travel into the office £52,737 - £66,197 (National Framework) or £58,409- £71,869 (London Framework – if you are London office based or homebased and live within the boundary of the M25) Plus an … those with current UK working rights for this role, this client cannot offer visa sponsorship. A new and exciting opportunity has arisen for a Principal Data Scientist with a strong background in Advanced AI (Artificial Intelligence) to lead, mentor and up skill a team of Data Scientists. Collaborating cross-functionally the role will focus on the delivery of AI and Data Science programmes across the organisation, driving Data Quality, Data Governance and Best Practice. Proven and demonstratable experience of Python coding and clouding computing is required coupled with fantastic communication skills to More ❯
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Principal Data Scientist (Remote)

london (west end), south east england, United Kingdom
Hybrid / WFH Options
Datatech Analytics
Principal Data Scientist - Remote Remote Working - UK Home-based with very occasional travel into the office £52,737 - £66,197 (National Framework) or £58,409- £71,869 (London Framework – if you are London office based or homebased and live within the boundary of the M25) Plus an … those with current UK working rights for this role, this client cannot offer visa sponsorship. A new and exciting opportunity has arisen for a Principal Data Scientist with a strong background in Advanced AI (Artificial Intelligence) to lead, mentor and up skill a team of Data Scientists. Collaborating cross-functionally the role will focus on the delivery of AI and Data Science programmes across the organisation, driving Data Quality, Data Governance and Best Practice. Proven and demonstratable experience of Python coding and clouding computing is required coupled with fantastic communication skills to More ❯
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Senior Principal Data Scientist, NLP

London, United Kingdom
Hybrid / WFH Options
NLP PEOPLE
Job Band Job number 21462 Principal Senior Data Scientist - NLP Salary range: Up to £118,000 depending on relevant skills, knowledge and experience. The expected salary range for this role reflects internal benchmarking and external market insights. Contract type: permanent contract Location: London or Salford based Benefits … Technology Groups and senior business stakeholders across the BBC to accelerate Machine Learning based innovation. Reporting to the Head of AI Research, the Senior Principal Data Scientist will lead a team of machine learning researchers focusing on natural language processing. As a Senior Principal Data Scientist, you will play a key role in driving technical excellence and innovation. You will lead a team of machine learning scientists, providing mentorship and technical guidance while ensuring that the team's work aligns with business objectives. This is a hands-on role that involves active hands More ❯
Employment Type: Permanent
Salary: GBP Annual
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Principal Data Scientist

London Area, United Kingdom
Harnham
Principal Data Scientist Up to £85,000 London (Hybrid, 3 days onsite per week) Company: Join one of the world’s biggest high street fashion brands, who has been leading the industry for the past 55 years. They are looking for a Principal Data Scientist to lead and scale their data science strategy, helping to unlock insights, optimise performance, and shape the future! They are on a mission to make a real impact - for our customers and our people. With a strong presence both online and offline, we're committed to driving innovation … embracing inclusivity, and creating meaningful experiences through the power of data. Responsibilities: Own the data science strategy and roadmap across the business Build, mentor, and scale a high-performing team of data scientists and analysts Create scalable solutions to solve real-world challenges like demand forecasting, personalisation, and More ❯
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Principal Data Scientist

London Area, United Kingdom
Harnham
Principal Data Scientist London - Hybrid (3 days a week) Up to £125,000 + benefits This is a great opportunity for a Principal Data Scientist to join an exciting marketing consultancy - in an 80% hands-on, 20% technical leadership/management role. THE ROLE … on advanced projects across GenAI and NLP Work closely with an Engineering team, whilst remaining full stack in your projects Report into Head of Data Science Driving commercial value closely with senior stakeholders Have a chance to upskill and mentor/manage, within a strong team of 8 Skills … And Experience Strong Data Science/Statistical fundamental knowledge is required Experience across some of recommenders, forecasting, pricing, churn, marketing etc. - this is a role for a generalist! Exposure to some of GenAI, NLP, Computer Vision is a bonus MSc in a STEM subject (Maths, Physics, Data Science More ❯
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Principal Data Scientist

london, south east england, United Kingdom
Harnham
Principal Data Scientist London - Hybrid (3 days a week) Up to £125,000 + benefits This is a great opportunity for a Principal Data Scientist to join an exciting marketing consultancy - in an 80% hands-on, 20% technical leadership/management role. THE ROLE … on advanced projects across GenAI and NLP Work closely with an Engineering team, whilst remaining full stack in your projects Report into Head of Data Science Driving commercial value closely with senior stakeholders Have a chance to upskill and mentor/manage, within a strong team of 8 Skills … And Experience Strong Data Science/Statistical fundamental knowledge is required Experience across some of recommenders, forecasting, pricing, churn, marketing etc. - this is a role for a generalist! Exposure to some of GenAI, NLP, Computer Vision is a bonus MSc in a STEM subject (Maths, Physics, Data Science More ❯
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Principal Data Scientist

London, UK
Disability Solutions
Are you looking to develop your Data Scientist career? Would you like to be part of a team that innovates using technology? About our Team: At LexisNexis Intellectual Property Solutions, our mission is to bring clarity to innovation by delivering better outcomes to the innovation community. Each and … deliver these results. We are proud to directly support and serve these innovators in their endeavors to better humankind. About the Role: As a Principal Data Scientist, you will be a key member of the LNIP Technology Team. Your primary responsibility will be to drive the strategic … vision of Data Science and Machine Learning initiatives across the organization, ensuring alignment with organizational goals. You will lead development teams in research, design, and software development projects, providing direct input to plans, schedules, and methodologies At RELX, we are committed to advancing gender diversity within the technology sector More ❯
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Principal Data Scientist

London, United Kingdom
Spinks HR
Principal Data Scientist - 6 Month Contract Remote - £525 - 575/day Inside IR35 Spinks are partnered with a leading UK Consultancy who are looking for an experienced Data Scientist to join on an exciting project in the early stages of its journey. This project works … closely with a leading Entertainment platform, aiming to improve and optimise the search engine function. You will work with other Data Scientists to build and optimise ML Models that improve the accuracy and efficiency of the search engine. Experience in a similar project is extremely beneficial for this position. More ❯
Employment Type: Permanent
Salary: GBP Annual
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Principal Data Scientist

London, United Kingdom
Spinks
Principal Data Scientist - 6 Month Contract Remote - £(Apply online only)/day Inside IR35 Spinks are partnered with a leading UK Consultancy who are looking for an experienced Data Scientist to join on an exciting project in the early stages of its journey. This project … works closely with a leading Entertainment platform, aiming to improve and optimise the search engine function. You will work with other Data Scientists to build and optimise ML Models that improve the accuracy and efficiency of the search engine. Experience in a similar project is extremely beneficial for this More ❯
Employment Type: Contract
Rate: £525 - £575/day
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Senior Principal Data Scientist

London, United Kingdom
Hybrid / WFH Options
Novartis Farmacéutica
Understand complex and critical business problems, formulates integrated analytical approach to mine data sources, employ statistical methods and machine learning algorithms to contribute solving unmet medical needs, discover actionable insights and automate process for reducing effort and time for repeated use. To manage the implementation and adherence to the … overall data lifecycle of enterprise data from data acquisition or creation through enrichment, consumption, retention, and retirement, enabling the availability of useful, clean, and accurate data throughout its useful lifecycle. High agility to be able to work across various business domains. Integrate business presentations, smart visualization … and their families a brighter future to look forward to. Apply today and welcome to where we thrive together! The Role 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 More ❯
Employment Type: Permanent
Salary: GBP Annual
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Mid-Level/Principal Data Scientist

London Area, United Kingdom
Harnham
Mid-Level/Principal Data Scientist London - Hybrid (3 days a week) Mid-Level (up to £75,000)/Principal (£110,000 to £125,000) Please note: This role covers candidates benchmarked separately at either the Mid-Level or Principal level. Feel free to apply … on advanced projects across GenAI and NLP Work closely with an Engineering team, whilst remaining full stack in your projects Report into Head of Data Science Driving commercial value closely with senior stakeholders Have a chance to upskill and mentor/manage, within a strong team of 8 ( Principal only) Skills And Experience MSc in a STEM subject (Maths, Physics, Data Science, Computer Science, Engineering etc.) Strong Data Science/Statistical fundamental knowledge is required Experience across some of AI (Gen AI, Computer Vision), recommenders, forecasting, pricing, churn, marketing etc. - this is a role for a More ❯
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Mid-Level/Principal Data Scientist

london, south east england, United Kingdom
Harnham
Mid-Level/Principal Data Scientist London - Hybrid (3 days a week) Mid-Level (up to £75,000)/Principal (£110,000 to £125,000) Please note: This role covers candidates benchmarked separately at either the Mid-Level or Principal level. Feel free to apply … on advanced projects across GenAI and NLP Work closely with an Engineering team, whilst remaining full stack in your projects Report into Head of Data Science Driving commercial value closely with senior stakeholders Have a chance to upskill and mentor/manage, within a strong team of 8 (Principal only) Skills And Experience MSc in a STEM subject (Maths, Physics, Data Science, Computer Science, Engineering etc.) Strong Data Science/Statistical fundamental knowledge is required Experience across some of AI (Gen AI, Computer Vision), recommenders, forecasting, pricing, churn, marketing etc. - this is a role for a More ❯
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Principal Data Scientist

London Area, United Kingdom
Harnham
Lead/Principal 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 … 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 More ❯
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Principal Data Scientist

london, south east england, United Kingdom
Harnham
Lead/Principal 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 … 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 More ❯
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