PrincipalDataScientist - Network & PI Analytics- Dublin, Letterkenny UnitedHealth Group is a health care and well-being company that's dedicated to improving the health outcomes of millions around the world. We are comprised of two distinct and complementary businesses, UnitedHealthcare and Optum, working to build a better health system for all. Here, your contributions matter as … Group, we're expanding our team in Ireland. We offer the investment, support, and resources to grow your career, while you bring the talent, ambition, and drive. As a PrincipalDataScientist on the UnitedHealthcare Network & Payment Integrity Analytics team , you'll play a key role in applying advanced analytics to lower the cost of healthcare for … our members. You'll lead high-impact projects, collaborate with senior stakeholders, and help drive innovation across provider networks and claims data platforms. Primary Responsibilities of the PrincipalDataScientist - Network & PI Analytics: Code daily to build and deploy impactful data science solutions, taking full ownership of projects, delivering measurable improvements in healthcare cost, quality More ❯
As a PrincipalDataScientist, you will be part of a team bringing AI and Data Science into the forefront of SB. We are looking for an experienced, technical, but pragmatic Staff DataScientist to enable our wider team to deliver value quickly. The role will report into Josh Dawson, our Head of Analytics … and Data Science, and sit alongside our talented Data Science team. As our PrincipalDataScientist, you'll: work closely with cross-functional development teams to build, test, and maximize the value of a suite of models ranging from LLM's to propensity, classification, and regression models contribute to end-to-end development and deployment … of ML and AI models define best practices for a team of highly talented and experienced Data Scientists have the opportunity to work with stakeholders in a high-pace, agile environment that encourages autonomy and growth create best practices for the technical side of Data Science at SB and drive value into SB in partnership with multiple stakeholders More ❯
Our PrincipalData Scientists are responsible for leading and delivering strategically significant, complex client engagements across our portfolio of clients. We believe that great delivery stems from a thorough understanding of our clients and their needs, strong discipline skills and subject matter expertise, excellent leadership and a clear vision of lasting and effective change in a public sector … environment. We expect our PrincipalDataScientist to bring all of that and enthuse our delivery teams with the same passion. The successful candidate will lead the Data Science aspects of our client engagements while overseeing the wider delivery within the account (or industry) when appropriate. They will coach and develop team members on their engagements … providing them with detailed performance feedback, as well as monitoring overall delivery to achieve the highest levels of client satisfaction. In addition, our PrincipalData Scientists are responsible for engaging with our clients to understand their challenges and build lasting, trusted advisor relationships. They will also oversee multiple, concurrent client deliveries to help ensure quality and drive the More ❯
PrincipalDataScientist (Hybrid work in London - roughly 1/2 days a week in London) We’re partnered with a well-established, tech-driven company that’s redefining how data science supports product innovation and customer experience across its domain. With a strong focus on automation, personalisation, and intelligent decisioning, this organisation is placing data … moving, high-ownership culture. Their environment encourages experimentation, cross-functional collaboration, and the freedom to shape what “great” looks like in machine learning at scale. The Role As a PrincipalDataScientist, you’ll play a pivotal role in shaping the company’s ML capability, both technically and culturally. Working alongside a collaborative data science team … real-time modelling infrastructure. This is a hybrid hands-on/leadership role, ideal for someone who thrives at the intersection of applied research, platform integration, and engineering-minded data science. What You’ll Be Doing Build and deploy a wide variety of models spanning classification, regression, propensity scoring, and LLM-based use cases Spearhead the entire company’s More ❯
City of London, London, United Kingdom Hybrid/Remote Options
Xcede
PrincipalDataScientist (Hybrid work in London - roughly 1/2 days a week in London) We’re partnered with a well-established, tech-driven company that’s redefining how data science supports product innovation and customer experience across its domain. With a strong focus on automation, personalisation, and intelligent decisioning, this organisation is placing data … moving, high-ownership culture. Their environment encourages experimentation, cross-functional collaboration, and the freedom to shape what “great” looks like in machine learning at scale. The Role As a PrincipalDataScientist, you’ll play a pivotal role in shaping the company’s ML capability, both technically and culturally. Working alongside a collaborative data science team … real-time modelling infrastructure. This is a hybrid hands-on/leadership role, ideal for someone who thrives at the intersection of applied research, platform integration, and engineering-minded data science. What You’ll Be Doing Build and deploy a wide variety of models spanning classification, regression, propensity scoring, and LLM-based use cases Spearhead the entire company’s More ❯
Lead/PrincipalDataScientist London - 3 days a week 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 data science and machine learning. This is a unique opportunity to join a company that partners directly with … portfolio companies to drive measurable operational and financial performance. They’re now hiring a Lead/PrincipalDataScientist to lead machine learning projects across a wide variety of real-world domains. 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 optimisation models across multiple industries Own the end-to More ❯
Lead/PrincipalDataScientist London - 3 days a week 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 data science and machine learning. This is a unique opportunity to join a company that partners directly with … portfolio companies to drive measurable operational and financial performance. They’re now hiring a Lead/PrincipalDataScientist to lead machine learning projects across a wide variety of real-world domains. 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 optimisation models across multiple industries Own the end-to More ❯
OF THE ROLE The BBC has been serving audiences online for decades, across key products such as BBC iPlayer. As we evolve to deliver more personalised content and experiences, Data Science is at the heart of that transformation. As a team, we use ML/AI to enrich our content and power personalised experiences for millions of audience members. … We're looking for a PrincipalDataScientist to join the Product Group. WHY JOIN THE TEAM As PrincipalDataScientist you'll play a hands on role in building machine learning products at BBC scale. Working as part of a highly cross functional team, you'll help overcome the challenges of deploying ML … in production. You'll have the opportunity to get involved with the wider data science community, both at the BBC and externally. We hope you'll be enthusiastic about sharing your knowledge and growing others. YOUR KEY RESPONSIBILITIES AND IMPACT You'll use your technical skills to deliver value to BBC audiences, blending a breadth and depth of dataMore ❯
Principal Product DataScientist We are looking for an experienced Principal Product DataScientist to join a global technology organisation. This is a senior leadership role where you will set the vision, shape the technical direction, and deliver strategic impact through innovative analytical solutions. What you will do As the most senior technical leader … in the Product Data Science function, you will: Define and lead the Data Science strategy for Product, embedding advanced analytics, data science, and AI methodologies into how products are built and customer experiences improved. Act as a trusted advisor to senior Product and Engineering leadership, ensuring data-driven decision making at the highest level. Drive the … development and adoption of scalable, automated data science tooling and frameworks. Explore and integrate emerging AI technologies, such as LLMs and Agentic AI, taking use cases from proof-of-concept through to production. Champion best practices in experimentation, causal inference, and uplift modelling. Own and deliver the most complex analytical projects, translating ambiguous questions into actionable recommendations. Mentor and More ❯
Principal Product DataScientist We are looking for an experienced Principal Product DataScientist to join a global technology organisation. This is a senior leadership role where you will set the vision, shape the technical direction, and deliver strategic impact through innovative analytical solutions. What you will do As the most senior technical leader … in the Product Data Science function, you will: Define and lead the Data Science strategy for Product, embedding advanced analytics, data science, and AI methodologies into how products are built and customer experiences improved. Act as a trusted advisor to senior Product and Engineering leadership, ensuring data-driven decision making at the highest level. Drive the … development and adoption of scalable, automated data science tooling and frameworks. Explore and integrate emerging AI technologies, such as LLMs and Agentic AI, taking use cases from proof-of-concept through to production. Champion best practices in experimentation, causal inference, and uplift modelling. Own and deliver the most complex analytical projects, translating ambiguous questions into actionable recommendations. Mentor and More ❯
The Vacancy Are you a PrincipalDataScientist looking to join an organisation where what you do genuinely makes an impact? Where you are empowered, heard and able to think creatively? Then look no further because we are what you have been looking for! We are looking for a Senior PrincipalDataScientist with … teams and the ability to communicate with both technical and non-technical teams across the business. This role sits within Optum UK Health Analytics team responsible for taking large data sets from various sources and converting them into meaningful insights on UK healthcare. You will play a key role in developing and implementing Optum UK’s data science … the way. If this sounds like something you want to be a part of then apply today! What you’ll do You will take ownership of the UK’s data science function, this will include providing strategic and technical direction, team building and communicating with senior stakeholders across the business. Other key responsibilities and accountabilities will include; Provide strategic More ❯
Principal Product DataScientist I Viator About Viator Viator, a Tripadvisor company, is the leading marketplace for travel experiences. We believe that making memories is what travel is all about. And with 300,000+ travel experiences to explore-everything from simple tours to extreme adventures (and all the niche, interesting stuff in between)-making memories that will … last-minute availability, it's never too late to make any day extraordinary. Viator. One app, 300,000+ travel experiences you'll remember. What you will do: As a Principal Product DataScientist, you will operate as the most senior technical leader in the Product Data Science function. You will shape the vision, set the technical … 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. 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 experiences. Serve as a More ❯
PrincipalDataScientist Logistics AI Company (Up to £120,000 per annum) London (4 days per week in office) La Fosse have partnered with a ambitious AI company transforming how businesses in the logistics sector operate. La Fosse are supporting this rapidly expanding AI business in preparing for an international launch, we’re now looking for a … Senior and PrincipalData Scientist. What you’ll be doing: Build, deploy, and scale machine learning systems that forecast demand, optimise staffing, and improve operational performance across thousands of venues. Lead projects end-to-end, from data design and modelling through to validation, deployment, and monitoring. Develop AI systems across areas such as computer vision, forecasting, optimisation … and emerging generative or agentic models. Partner with engineers to design scalable ML pipelines, APIs, and real-time infrastructure. About you: Background in Computer Science, Mathematics, Data Science, or AI (Master’s or PhD preferred). 5+ years’ experience developing and deploying ML models in production environments. Strong Python skills, with experience in frameworks like PyTorch, TensorFlow, or Hugging More ❯
PrincipalDataScientist Logistics AI Company (Up to £120,000 per annum) London (4 days per week in office) La Fosse have partnered with a ambitious AI company transforming how businesses in the logistics sector operate. La Fosse are supporting this rapidly expanding AI business in preparing for an international launch, we’re now looking for a … Senior and PrincipalData Scientist. What you’ll be doing: Build, deploy, and scale machine learning systems that forecast demand, optimise staffing, and improve operational performance across thousands of venues. Lead projects end-to-end, from data design and modelling through to validation, deployment, and monitoring. Develop AI systems across areas such as computer vision, forecasting, optimisation … and emerging generative or agentic models. Partner with engineers to design scalable ML pipelines, APIs, and real-time infrastructure. About you: Background in Computer Science, Mathematics, Data Science, or AI (Master’s or PhD preferred). 5+ years’ experience developing and deploying ML models in production environments. Strong Python skills, with experience in frameworks like PyTorch, TensorFlow, or Hugging More ❯
PrincipalDataScientist Up to £150,000 London (2-3 days onsite per week - client travel) Company: Join a management consultancy that has been disrupting the industry for over a decade. They work across sectors including Defence, Retail, Government, and Healthcare, delivering bespoke Data Science and Machine Learning solutions. By combining strategy, innovation, and execution, they … help organizations turn bold ideas into real-world impact Responsibilities: Own the end-to-end delivery of complex data science and machine learning projects Define and drive data science strategies that align with client goals and broader organizational objectives. Develop tailored models and algorithms to solve unique client problems to deliver real business value. Stay at the forefront More ❯
PrincipalDataScientist Up to £150,000 London (2-3 days onsite per week - client travel) Company: Join a management consultancy that has been disrupting the industry for over a decade. They work across sectors including Defence, Retail, Government, and Healthcare, delivering bespoke Data Science and Machine Learning solutions. By combining strategy, innovation, and execution, they … help organizations turn bold ideas into real-world impact Responsibilities: Own the end-to-end delivery of complex data science and machine learning projects Define and drive data science strategies that align with client goals and broader organizational objectives. Develop tailored models and algorithms to solve unique client problems to deliver real business value. Stay at the forefront More ❯
Lead/PrincipalDataScientist x2/3 days a week in the office About the Role & Company This is a leadership opportunity at a fast-scaling AI consultancy known for its technical excellence and track record in delivering real-world impact across some of the most important companies globally. The team helps major clients in the … Retail sector apply cutting-edge data science in complex operational environments, balancing innovation with reliability and rigour. You’ll join a deeply technical, collaborative group working on custom AI and machine learning solutions that support automation, forecasting, and decision intelligence. The focus is on strategic value creation: solving ambiguous problems with clarity, and delivering tools that embed into the … heart of client systems. What You’ll Be Doing Set the technical direction on multi-disciplinary data science & AI projects, from approach selection to architecture design Take ownership of full solution pipelines, leading hands-on development and supporting others to do the same Work closely with senior client stakeholders to shape project scope, track value delivery, and communicate findings More ❯
honesty, integrity, loyalty and service - define how we treat each other and our members. Be part of what truly makes us special and impactful. The Opportunity As a dedicated PrincipalDataScientist , you will leverage technical expertise and industry experience to influence the application, scalability, and enablement of artificial intelligence/machine learning (AI/ML) across … provide strategic guidance to executive leadership by seeking, vetting, proposing, and enabling "best in class" tools and technologies. Additionally, you will collaborate with IT Architecture and leadership to ensure data and analytics tools align with USAA's strategic vision and operational priorities. We offer a flexible work environment that requires an individual to be in the office 4 days … best practices, and sound methodology. Works with model risk partners to promote a culture of regulatory compliance. Designs large, complex information assets that enable applied analytics. Collaborates with engineering, data, and information architects to establish and maintain well-governed, documented, and controlled datasets from internal and external, structured, and unstructured sources. Seeks opportunities to simplify, modernize, and standardize the More ❯
honesty, integrity, loyalty and service - define how we treat each other and our members. Be part of what truly makes us special and impactful. The Opportunity As a dedicated PrincipalDataScientist , you will leverage technical expertise and industry experience to influence the application, scalability, and enablement of artificial intelligence/machine learning (AI/ML) across … provide strategic guidance to executive leadership by seeking, vetting, proposing, and enabling "best in class" tools and technologies. Additionally, you will collaborate with IT Architecture and leadership to ensure data and analytics tools align with USAA's strategic vision and operational priorities. We offer a flexible work environment that requires an individual to be in the office 4 days … best practices, and sound methodology. Works with model risk partners to promote a culture of regulatory compliance. Designs large, complex information assets that enable applied analytics. Collaborates with engineering, data, and information architects to establish and maintain well-governed, documented, and controlled datasets from internal and external, structured, and unstructured sources. Seeks opportunities to simplify, modernize, and standardize the More ❯
honesty, integrity, loyalty and service - define how we treat each other and our members. Be part of what truly makes us special and impactful. The Opportunity As a dedicated PrincipalDataScientist , you will leverage technical expertise and industry experience to influence the application, scalability, and enablement of artificial intelligence/machine learning (AI/ML) across … provide strategic guidance to executive leadership by seeking, vetting, proposing, and enabling "best in class" tools and technologies. Additionally, you will collaborate with IT Architecture and leadership to ensure data and analytics tools align with USAA's strategic vision and operational priorities. We offer a flexible work environment that requires an individual to be in the office 4 days … best practices, and sound methodology. Works with model risk partners to promote a culture of regulatory compliance. Designs large, complex information assets that enable applied analytics. Collaborates with engineering, data, and information architects to establish and maintain well-governed, documented, and controlled datasets from internal and external, structured, and unstructured sources. Seeks opportunities to simplify, modernize, and standardize the More ❯
City of London, London, United Kingdom Hybrid/Remote Options
Opus Recruitment Solutions
Location: London (Hybrid) Contract Type: Permanent About the Role We are working with a leading financial technology innovator to recruit a PrincipalDataScientist for a flagship digital banking transformation programme. This role is pivotal in developing advanced machine learning solutions that enhance credit risk modelling, fraud detection, and personalised financial services for millions of customers. The … in areas such as credit scoring, transaction monitoring, and customer segmentation. This is a chance to influence the architecture of next-generation banking platforms while mentoring a team of data scientists and collaborating with engineering and product leaders. Key Responsibilities Drive end-to-end delivery of data science solutions for digital banking and risk analytics use cases. Build … teams to embed intelligent decision engines into core banking workflows. Define best practices for model governance, explainability, and regulatory compliance in financial services. Lead and coach a team of data scientists, ensuring technical excellence and innovation. What We’re Looking For 10+ years of experience in data science or applied machine learning, ideally within financial services or fintech. More ❯
Location: London (Hybrid) Contract Type: Permanent About the Role We are working with a leading financial technology innovator to recruit a PrincipalDataScientist for a flagship digital banking transformation programme. This role is pivotal in developing advanced machine learning solutions that enhance credit risk modelling, fraud detection, and personalised financial services for millions of customers. The … in areas such as credit scoring, transaction monitoring, and customer segmentation. This is a chance to influence the architecture of next-generation banking platforms while mentoring a team of data scientists and collaborating with engineering and product leaders. Key Responsibilities Drive end-to-end delivery of data science solutions for digital banking and risk analytics use cases. Build … teams to embed intelligent decision engines into core banking workflows. Define best practices for model governance, explainability, and regulatory compliance in financial services. Lead and coach a team of data scientists, ensuring technical excellence and innovation. What We’re Looking For 10+ years of experience in data science or applied machine learning, ideally within financial services or fintech. More ❯
Role summary: As a PrincipalDataScientist (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 for financial markets and professionals.We're looking for someone who combines … Familiarity with DevOps practices including CI/CD, version control, automated testing, and monitoring to support reliable model deployment and maintenance. Education Bachelor's degree in Engineering, Computer Science, Data Science, Statistics, Mathematics, Physics or a related field, or equivalent practical experience. What you'll get in return: High-impact projects : Work on innovative AI products that solve complex … ready to take your career to the next level and make a significant impact, we'd love to hear from you.LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.Our purpose is the foundation on which our culture is built. Our values of More ❯
Why We Work at Dun & Bradstreet Dun & Bradstreet combines global data and local expertise to help clients make smarter decisions. With 6,000+ people in 31 countries, we are a team of diverse thinkers and problem solvers who all share a common curiosity: to find new ways to turn data into value. If you share this curiosity and … want to be part of a future-ready company, come join us! Learn more at . As part of a new team within Dun & Bradstreet's Data & Analytics group, you will engage with prospects to determine where analytical solutions and consultancy will aid in solving customer problems. You will work with the customer and Data Scientists to agree … role leads the design, development, and deployment of Analytics as a Service (AaaS) solutions. It blends advanced analytics, AI, machine learning, and platform strategy to deliver robust and automated data science capabilities across business units and to external clients. You will be responsible for all customer aspects of the modeling engagement, including design, development, validation, calibration, documentation, approval, implementation More ❯
The Data Science team partners with groups across the company and leverages state-of-the-art technology to offer solutions that set AutoScout24 apart. In this role, you'll collaborate cross-functionally with product, engineering, and business teams to design, build, and scale AI solutions that set us apart in the industry. You'll bring deep technical expertise, a … passion for innovation, and a strong product mindset to develop ML products that solve real-world problems and deliver measurable business value. Our ideal candidate is an experienced data science leader who thrives in a dynamic, fast-paced environment that combines the stability of an industry leader with the agility of a startup culture. You are curious, proactive, and … different nationalities , all working together inclusively and respectfully. The role is Hybrid (2 days a week office attendance) What You'll Do: Shape the strategic direction and vision of Data Science across the organization by identifying transformative AI/ML opportunities and championing the team's evolving role in a rapidly advancing GenAI landscape. Lead the design and deployment More ❯
