10 of 10 DemandTrendPermanent Principal Data Scientist Jobs in the UK

Principal Data Scientist London, UK (Hybrid) Up to £135,000 About the Company We’re working with a next-generation private markets firm that is redefining value creation by combining deep industry expertise with advanced AI and data science. This is a unique opportunity to join a company that partners directly with portfolio companies to drive … measurable operational and financial performance—powered by data. They’re now hiring a Principal Data Scientist to lead high-impact analytics and machine learning projects across a wide variety of real-world domains - from manufacturing to customer experience and commercial optimisation. Working closely with a multidisciplinary team, you’ll have the autonomy to shape technical approaches while … staying closely tied to commercial outcomes. This role is ideal for someone who enjoys solving complex, ambiguous business problems using data science, and wants to work at the intersection of technology, investment, and strategy. Key Responsibilities Translate complex business problems into measurable data science solutions that deliver commercial value Lead the design, development, and deployment of predictive and More ❯

Principal Data Scientist London, UK (Hybrid) Up to £135,000 About the Company We’re working with a next-generation private markets firm that is redefining value creation by combining deep industry expertise with advanced AI and data science. This is a unique opportunity to join a company that partners directly with portfolio companies to drive … measurable operational and financial performance—powered by data. They’re now hiring a Principal Data Scientist to lead high-impact analytics and machine learning projects across a wide variety of real-world domains - from manufacturing to customer experience and commercial optimisation. Working closely with a multidisciplinary team, you’ll have the autonomy to shape technical approaches while … staying closely tied to commercial outcomes. This role is ideal for someone who enjoys solving complex, ambiguous business problems using data science, and wants to work at the intersection of technology, investment, and strategy. Key Responsibilities Translate complex business problems into measurable data science solutions that deliver commercial value Lead the design, development, and deployment of predictive and More ❯

Principal Data Scientist Salary: Up to £100k with a competitive bonus. Location: UK based, 3 days a week on client site This role is a great opportunity to work at a dynamic consultancy rooted in the UK, this firm partners closely with public agencies, retailers, transport providers, housing associations, energy companies, and healthcare systems to solve complex … problems. Shape the future of data science and AI — lead transformative projects with real-world impact. We're looking for a Principal Data Scientist to drive advanced solutions in machine learning, AI, and data analytics across diverse industries. Key Responsibilities Lead complex data science and AI initiatives from concept to deployment. Develop advanced models … using machine learning, optimisation, and simulation techniques. Mentor and guide a team of data scientists, driving technical excellence. Collaborate with clients to define problems and deliver measurable impact. Stay hands-on with Python and modern data science tools (pandas, scikit-learn, etc.). Requirements Proven experience leading end-to-end data science projects. Expertise in machine learning More ❯

Principal Data Scientist Up to £150,000 London (Hybrid, 2-3 days onsite per week) Company: This private equity and investment start-up are focused on streamlining and improving performance by reimagining value creation capabilities. They are utilising cutting-edge AI to generate performance insights on each aspect of the investment lifecycle. Responsibilities: Build machine learning predictive … a fast-paced, collaborative environment. How to Apply: Please register your interest by sending your CV to Emily Burgess via the Apply link on this page. Keywords: Machine Learning, Data Science, start-up, Investment, Equity More ❯

Principal Data Scientist Up to £150,000 London (Hybrid, 2-3 days onsite per week) Company: This private equity and investment start-up are focused on streamlining and improving performance by reimagining value creation capabilities. They are utilising cutting-edge AI to generate performance insights on each aspect of the investment lifecycle. Responsibilities: Build machine learning predictive … a fast-paced, collaborative environment. How to Apply: Please register your interest by sending your CV to Emily Burgess via the Apply link on this page. Keywords: Machine Learning, Data Science, start-up, Investment, Equity More ❯

Principal Data Scientist Up to £150,000 London (Hybrid, 2-3 days onsite per week) Company: This private equity and investment start-up are focused on streamlining and improving performance by reimagining value creation capabilities. They are utilising cutting-edge AI to generate performance insights on each aspect of the investment lifecycle. Responsibilities: Build machine learning predictive … a fast-paced, collaborative environment. How to Apply: Please register your interest by sending your CV to Emily Burgess via the Apply link on this page. Keywords: Machine Learning, Data Science, start-up, Investment, Equity More ❯

Principal Data Scientist Up to £150,000 London (Hybrid, 2-3 days onsite per week) Company: This private equity and investment start-up are focused on streamlining and improving performance by reimagining value creation capabilities. They are utilising cutting-edge AI to generate performance insights on each aspect of the investment lifecycle. Responsibilities: Build machine learning predictive … a fast-paced, collaborative environment. How to Apply: Please register your interest by sending your CV to Emily Burgess via the Apply link on this page. Keywords: Machine Learning, Data Science, start-up, Investment, Equity More ❯

Be the Data-Driven Heart of Our Transformation At 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, were looking for a Principal Data Scientist to lead the charge. This is your opportunity to work across every … area of our business, applying cutting-edge data science to real-world challenges from personalising pet care to optimising operations and shaping strategic decisions. The role offers hybrid working from our Support Office in Handforth, Cheshire. What youll be doing: Turning data into clear, actionable insights that help shape big decisions across the business Telling compelling stories with … data that inspire action Working closely with teams across tech and the business to bring data science solutions to life Spotting opportunities to improve how we use data, especially in our loyalty programme Sharing your knowledge and mentoring others in the team Driving innovation through new tools, techniques and academic partnerships Making sure our models run smoothly More ❯

and real-time inference Observability: monitoring, drift detection, hallucination, SLOs, and alerting for model and service health Serving at scale: containerised, auto-scaling (e.g., Kubernetes) with low-latency inference Data & model versioning; maintain a central model registry with lineage and rollback Workflow automation across the ML lifecycle (data ingestion → retraining → deployment) Deliver a live performance dashboard (intent accuracy … Proven expertise in mathematics and classical ML algorithms, plus deep knowledge of LLMs (prompting, fine-tuning, RAG/tool use, evaluation) Hands-on with AWS and Azure services for data/ML (e.g., Bedrock/SageMaker, Azure OpenAI/Azure ML) Strong engineering: Python, APIs, containers, Git; CI/CD (GitHub Actions/Azure DevOps), IaC (Terraform/CloudFormation … Serving Infrastructure: A containerized, auto-scaling environment (e.g., using Kubernetes) to serve the chatbot model with low latency Workflow Automation: Automate the end-to-end machine learning lifecycle, from data ingestion and preprocessing to model retraining and deployment Live Performance Dashboard: A real-time dashboard displaying key model metrics such as intent accuracy, response latency, and error rates Centralized More ❯

has the power to create their own destiny andmake a positive contribution to the world of banking and society. THE ROLE We are seeking a visionary and hands-onPrincipal Data Scientistto lead the design, development, and deployment of cutting-edgeAI/ML solutionsacross our Banking AI portfolio. This role is central to Temenos' AI strategy, delivering responsible, high-impact … operate and serve their customers. You will work closely with product managers, engineers, and domain experts to build scalable, ethical, and high-performing AI systems. You will also mentor data scientists, contribute to AI governance, and drive innovation in areas such as GenAI, LLMs, and predictive analytics. OPPORTUNITIES AI Strategy & Innovation Lead research and prototyping of novel AI techniques … models into scalable, cloud-native and on-prem systems. Establish best practices for model monitoring, retraining, and lifecycle management. Technical Leadership & Mentorship Provide technical direction and mentorship to junior data scientists and engineers. Review code, model architectures, and experiments to ensure scientific rigor and quality. Contribute to the development of internal AI frameworks, tools, and reusable components. Stakeholder Engagement More ❯