26 to 49 of 49 Principal Data Scientist Jobs in the UK

Hybrid Principal Data Scientist: ML & RL for Gaming

Location
Greater London, England, United Kingdom
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 ...

Principal Data Scientist

Location
Greater London, England, United Kingdom
that will improve how we diagnose and treat brain disorders, ultimately improving and saving the lives of patients across the world. The Role The Data Science team at CoMind develops the algorithms and machine learning systems that transform raw optical interference signals from CoMind One into continuous, clinically meaningful … photonics, physiology, and applied ML, the team's work directly determines what CoMind One can measure, how accurately, and under what clinical conditions. As Principal Data Scientist, you will be a technical authority for CoMind's data science function, setting methodological direction for signal condition ...

Principal Data Scientist

Location
Greater London, England, United Kingdom
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 ...

Principal Data Scientist

Hiring Organisation
Faculty
Location
London, UK
Employment Type
Full-time
much opportunity for impactful innovation and are proud to set the gold-standard for marrying technical excellence with safe deployment.#LI-PRIOAbout the roleAs 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 ...

Principal Data Scientist - Experimentation Leader

Location
United Kingdom
Tripadvisor Group is seeking a Principal Data Scientist to lead experimentation standards across the organisation and raise measurement quality. You will shape tooling, protocols and platforms so teams can experiment with confidence and speed. You will collaborate with Product, Engineering and Data Platform teams, owning complex … measurement challenges and mentoring the wider data science community to raise overall decision quality. #J-18808-Ljbffr ...

Defence AI Principal Data Scientist & Strategy Lead

Location
Greater London, England, United Kingdom
Faculty is seeking a Principal Data Scientist for its Defence team in the UK. You will own complex ML delivery, shape sector strategy, and mentor data scientists while building trusted client partnerships. The role requires UK Security Clearance eligibility, with on-site work 2–4 days ...

Principal Data Scientist, Experimentation

Location
Greater London, England, United Kingdom
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 ...

Principal Data Scientist — Experimentation Leader (Hybrid)

Location
Greater London, England, United Kingdom
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 ...

Principal Data Scientist - AI

Hiring Organisation
Anaplan
Location
London, UK
Employment Type
Full-time
Everything that makes you unique is welcome; join us and let's build what's next - together! About the RoleWe'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 … 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 Data Scientist - Greenfield Models & Growth Lead

Location
United Kingdom
leading consulting firm is seeking a Principal Data Scientist to innovate within a prestigious brand. This role offers a unique chance to shape the approach to data science in a greenfield environment, impacting the organization significantly. Ideal candidates have fluency in Python and proven experience ...

Principal Data Scientist - Brain Monitoring & Applied ML

Location
Greater London, England, United Kingdom
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 ...

Principal Data Scientist

Location
Greater London, England, United Kingdom
sites, you’ll have the flexibility to work from our London office or remotely from elsewhere within the UK. About the role As a Principal Data Scientist at Faculty, you will drive high impact transformation within our Defence team by taking ownership of complex machine learning delivery … deliver exceptional value. Balancing deep business knowledge with advanced analytical skill, you will shape cutting edge AI solutions, build robust client partnerships, and mentor data scientists across ambitious initiatives. What you'll be doing: Owning and growing a strategic portfolio of machine learning work specifically tailored to the Defence ...

Principal Data Scientist: Generative AI & Strategy | Hybrid

Location
Greater London, England, United Kingdom
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 ...

Principal AI Data Scientist

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 Data Scientist (NLP + Applied AI)

Location
United Kingdom
millions of journal articles, extracting entities, classifications, claim tuples, and summaries optimized for use by downstream agentic applications. We're looking for a senior data scientist to own domain-specific content modeling work end to end, from the eval set through the pipeline stage that ships it. … join a small, senior team where data scientists own their models in production. You'll write the code, own the evaluations, ship the changes, and stay accountable for the outcomes. This is a hands‐on role for someone who wants to see their models through to real users ...

Principal Product Data Scientist

Hiring Organisation
TripAdvisor
Location
London, UK
Employment Type
Full-time
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 ...

Principal Data Scientist - AI, MLOps & GenAI Lead

Location
Crawley, England, 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 - National Security (TIRE)

Location
Cheltenham, England, United Kingdom
This position is working within the Turing Integrated Research Engineering (TIRE) team to support the Turing’s national security partners though developing AI and Data science solutions. It will work across a cross-disciplinary team, developing new projects and authoring research proposals. This position will contribute to team research … internal and external stakeholders as well as supporting the career development of staff within the group. ABOUT YOU We're looking for an experienced Data Scientist with a proven track record of applying AI, machine learning and advanced analytical techniques to complex, real-world challenges. You'll combine ...

Principal Data Scientist – National Security (TIRE)

Location
Cheltenham, England, United Kingdom
This position is working within the Turing Integrated Research Engineering (TIRE) team to support the Turing’s national security partners though developing AI and Data science solutions. It will work across a cross-disciplinary team, developing new projects and authoring research proposals. This position will contribute to team research … stakeholders as well as supporting the career development of staff within the group. HOW YOU WILL MAKE AN IMPACT Apply AI, machine learning and data science expertise to some of the UK's most complex national security challenges. Take ownership of technical challenge areas, shaping approaches and delivering innovative ...

Principal Data Scientist - National Security AI & Research

Location
Cheltenham, England, United Kingdom
Alan Turing Institute is seeking a Data Scientist within the Turing Integrated Research Engineering (TIRE) team in Cheltenham. The role focuses on applying AI, machine learning and data science to national security challenges, across a cross-disciplinary group to develop new projects and author research proposals. This ...

Principal Data Scientist

Location
Greater London, England, United Kingdom
online payments. Further information is available at www.paysafe.com. It starts here. Have a global impact on the world of payments. As Director, Merchant Risk Data Science, you will play a hands-on technical leadership role, working with groups of data scientists, driving the design and delivery of next … generation AI/ML models for merchant risk at Paysafe. Reporting to the Head of Merchant Data Science, you will focus on advanced modelling, applied research, and production delivery, building on existing foundational models to push capability into modern AI techniques. The role is highly technical, requiring deep expertise ...

Principal Data Scientist & Machine Learning Researcher

Hiring Organisation
Raytheon
Location
Gloucester, Gloucestershire, United Kingdom
Salary
£ 60 K
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 … group, support with customer and stakeholder engagement and deliver technical solutions on internal and external projects.Skills and Experience RequirementsBSc in Machine Learning, Data Science, Computer Science, Mathematics or related field.Multiple years experience of delivering novel ML solutions to customers and internal stakeholders.Excellent coding practice using Python and associated ...

Principal Data Scientist & Machine Learning Researcher

Hiring Organisation
Raytheon
Location
Manchester, Greater Manchester, United Kingdom
Salary
£ 60 K
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 … group, support with customer and stakeholder engagement and deliver technical solutions on internal and external projects.Skills and Experience RequirementsBSc in Machine Learning, Data Science, Computer Science, Mathematics or related field.Multiple years experience of delivering novel ML solutions to customers and internal stakeholders.Excellent coding practice using Python and associated ...

Principal Data Scientist, Detection

Location
Greater London, England, United Kingdom
constantly evolving threat landscape. Responsibilities Lead the research, design, and evaluate detection models that identify automated, fraudulent, and malicious activity across Internet-scale data Mentor others in how to uncover patterns and behaviors that distinguish adversaries from legitimate users. Own the detection measurement framework, defining metrics and evaluation strategies … contested. Drive adoption of promising AI/ML techniques and represent Cloudflare in the broader research community. Drive cross-functional partnerships with ML Engineers, Data Engineers, and Product; Influence roadmaps and align detection strategy with company priorities. Shape long-term detection strategy, identifying gaps and opportunities that span multiple ...