Principal Data Scientist At Marshmallow London jobs in London – Browse 10,029 openings on RoboApply Jobs

Principal Data Scientist At Marshmallow London jobs in London

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Marshmallow logo
Full-time|On-site|London

About MarshmallowAt Marshmallow, we strive to simplify the migration process.Addressing a complex challenge of this scale requires a team of inquisitive minds dedicated to discovering innovative solutions. We are looking for individuals who question the why, deconstruct assumptions, and proactively seek to create better pathways.A career at Marshmallow promo…

Feb 18, 2026
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Marshmallow logo
Full-time|On-site|London

Are you a passionate data scientist looking to make a significant impact in a dynamic environment? Join Marshmallow as a Staff Data Scientist and leverage your expertise to drive innovative data solutions. In this role, you will work closely with cross-functional teams to analyze complex datasets, develop predictive models, and provide actionable insights that enhance our product offerings.

Mar 25, 2026
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Marshmallow logo
Full-time|On-site|London

About MarshmallowAt Marshmallow, we strive to simplify the migration process for everyone. Our mission is substantial and requires a team of inquisitive minds dedicated to finding innovative solutions. We are looking for individuals who constantly question the status quo, challenge assumptions, and take action to create a better future.A career with Marshmallow is centered around continuous personal and professional development. We offer an environment where you will be encouraged to elevate your skills and provided with the necessary resources to achieve impactful results and drive meaningful change.If our ethos resonates with you, we invite you to explore our Culture Handbook for further insights.Join us in advancing our mission and your career.People TeamOur People Team is integral to Marshmallow, collaborating with leadership across various departments to cultivate high-performing, inclusive, and engaged teams. We are committed to providing a seamless and high-quality experience for our employees at every stage of their journey, empowering them to perform at their best while embodying our core values.As a People Partner / People Advisor, you will engage directly with organizational leaders, focusing on addressing employee relations inquiries and offering clear, actionable guidance on personnel matters. You will partner closely with senior People Partners to support diverse teams, assisting leaders in managing performance, wellbeing, organizational change, and everyday people-related challenges effectively.This role is practical and results-oriented, balancing employee relations casework with broader partnership support. You will be pivotal in implementing consistent people practices, contributing to team initiatives, and ensuring a positive and well-supported experience for both employees and managers as Marshmallow continues to expand.What You'll Be DoingCollaborate with leaders to confidently navigate people-related challenges, from everyday guidance to complex employee relations issues.Offer strategic advice on organizational structure, workforce planning, and overall team effectiveness.Manage the complete employee lifecycle, including onboarding, performance management, professional development, and exits, to enable employee success.Lead employee relations support across various UK business units, ensuring fairness and compliance.

Feb 6, 2026
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Marshmallow logo
Full-time|On-site|London

Role overview Marshmallow is looking for a Lead Pricing Data Scientist based in London. The position centers on building pricing strategies and applying data analytics to guide business choices. In this role, efforts will shape pricing models and have a direct impact on how Marshmallow competes in the market. The work supports key decisions that affect both immediate pricing and the company's long-term approach. Key responsibilities Develop pricing strategies informed by data analysis Use analytics to support business decision-making Influence and improve pricing models for market competitiveness Location This position is based in London.

Apr 21, 2026
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Marshmallow logo
Full-time|On-site|London

About MarshmallowAt Marshmallow, we are dedicated to simplifying the migration process.Addressing a systemic challenge of this scale demands a team of inquisitive minds who tirelessly seek solutions. We encourage individuals to question the why, challenge assumptions, and proactively take steps to create better methods.Our careers at Marshmallow revolve around ongoing development, with a strong emphasis on learning. You will be encouraged to elevate your skills and will receive the necessary tools and guidance to achieve this. This commitment enables you to produce meaningful work and influence positive change.If you resonate with our mission at Marshmallow, we invite you to delve into our Culture Handbook to discover more about our values.Advance our mission, and take your career to new heights.Customer Operations at MarshmallowCustomer Operations serves as the vital link between our organization and the individuals we assist. From clarifying complex terminology and intricate regulations to ensuring our customers feel valued and understood, every interaction is an opportunity to support them during a challenging transition. You will utilize the latest tools and processes while having the freedom to explore innovative ideas.The environment is dynamic, the challenges diverse, and you will gain more experience in a year than many do in three. We seek individuals who remain curious in unpredictable situations, ask insightful questions before rushing to solutions, and offer fresh perspectives to improve our processes. In return, you will receive early trust, be supported by a close-knit team, and have the opportunity for rapid advancement in the initial phases of your career.Your Responsibilities:The Senior Collections Executive is pivotal to Marshmallow’s financial well-being, focusing on the fair, responsible, and compliant recovery of outstanding debts. You will assist customers throughout their repayment journey, proposing customized solutions that adhere to FCA regulations and the Consumer Duty.In this role, you will communicate with customers facing financial arrears, guiding them toward sustainable repayment options while ensuring a positive experience, even in difficult times. By balancing negotiation skills, empathy, and regulatory compliance, you will assist customers in fulfilling their obligations while safeguarding the company from financial risk.

Feb 20, 2026
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Faculty logo
Full-time|On-site|London

Why Join Faculty?Founded in 2014, Faculty believes that artificial intelligence (AI) will shape the future of technology. With over 350 global clients, we have consistently delivered transformative AI solutions that engage human-centric approaches. Explore our impact here.We prioritize innovation over trends, focusing on responsible AI that drives significant results. Our team combines unmatched technical, product, and delivery expertise, serving clients across various sectors including government, finance, retail, energy, life sciences, and defense.As our business and reputation flourish, we seek individuals who share our passion for intellectual exploration and a commitment to leaving a lasting technological legacy.Join us in harnessing AI’s potential to create powerful solutions that will define the future.About Our TeamIn our Professional and Financial Services division, we leverage over a decade of applied AI experience to guide our clients through a rapidly evolving landscape.We design and implement AI solutions that enhance operational efficiency, improve customer experiences, and unlock commercial opportunities in uncertain markets. Operating within a highly regulated environment, we embrace the potential for meaningful innovation while setting the benchmark for technical excellence and secure deployment.About the RoleAs a Principal Data Scientist at Faculty, you will be a technical authority and domain expert, responsible for leading the delivery of intricate, high-impact projects for our key clients. You will establish the technical vision for the data science team while mentoring and developing our data scientists to ensure they remain at the forefront of the industry.Your ResponsibilitiesActing as a technical expert on machine learning, generative AI, and other advanced data science methodologies to deliver innovative solutions.Driving the execution of high-stakes projects while ensuring the highest standards of quality and technical excellence.

Nov 25, 2025
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Marshmallow logo
Full-time|On-site|London

Join Marshmallow as a Motor Pricing ActuaryAt Marshmallow, our mission is to streamline the migration process for all. We tackle complex problems with innovative solutions, driven by a team of inquisitive minds that are not afraid to challenge the status quo.We foster a culture of continuous growth, where learning is paramount. You will be encouraged to elevate your skills and equipped with the necessary resources to succeed. Your contributions will directly impact our mission and help us build a more efficient future.Discover more about our culture by exploring our Culture Handbook.Advance your career while making a difference.About the Pricing TeamAs a pivotal member of the Pricing team, you will take charge of our core motor insurance product's pricing. Your role will encompass reserving, capital modeling, and nurturing key actuarial partnerships.This position is critical to refining our pricing strategies, enhancing actuarial governance, and promoting sustainable growth. As the Pricing Function Holder for Marshmallow Insurance Ltd, you will ensure the pricing framework's integrity and compliance with regulatory standards for Gibraltar-based insurers.Collaborate with various teams across the organization to translate technical actuarial work into tangible commercial success. Your efforts in optimizing pricing models, analyzing reserve movements, and assisting with capital assessments will ensure Marshmallow remains committed to making informed, equitable, and data-driven decisions.

Apr 1, 2026
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Faculty logo
Full-time|On-site|London

Join our dynamic team at Faculty as a Data Scientist, where your analytical prowess will help drive impactful decisions across various sectors. In this role, you'll leverage advanced statistical techniques and machine learning algorithms to extract insights from complex datasets, delivering actionable recommendations to stakeholders. Collaborate with cross-functional teams to innovate and optimize data-driven solutions that enhance our clients' operational efficiency.

Mar 11, 2026
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Abound logo
Full-time|On-site|London

Join Abound, a forward-thinking company dedicated to leveraging data to drive innovative solutions. As a Data Scientist, you will play a crucial role in analyzing complex datasets, developing predictive models, and transforming data into actionable insights. Collaborate with cross-functional teams to enhance our products and services, ensuring that data-driven decisions are at the forefront of our strategy.

Mar 9, 2026
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Intercom logo
Full-time|On-site|London, England

Join our dynamic team at Intercom as a Senior Data Scientist, where you will leverage your analytical expertise to drive data-driven decisions and contribute to our innovative product development. In this role, you will collaborate with cross-functional teams to build models that enhance user experiences and optimize our services.

Mar 26, 2026
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Telegraph Media Group Limited logo
Data Scientist at Telegraph | London

Telegraph Media Group Limited

Full-time|On-site|London, England, United Kingdom

Join the innovative team at Telegraph as a Data Scientist, where you will leverage data analytics to drive strategic decisions and enhance our digital products. In this role, you will be responsible for analyzing complex datasets, building predictive models, and presenting insights to stakeholders. Your expertise will directly influence our editorial and commercial strategies, helping us to deliver exceptional content and user experiences.

May 1, 2026
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Marshmallow logo
Full-time|On-site|London

Role Overview Marshmallow is seeking a Business Development Manager in London to help shape and execute our growth plans. This role focuses on finding new business opportunities and building connections with potential clients. Collaboration with marketing and sales teams is central to developing strategies that support our expansion. What You Will Do Identify and pursue new business leads Build and maintain strong relationships with prospective clients Work alongside marketing and sales to develop and refine growth strategies Support efforts to strengthen Marshmallow’s market position

Apr 17, 2026
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ravio logo
Full-time|On-site|London

Join ravio as a Senior Data Scientist and lead innovative projects to harness the potential of big data. You will work closely with cross-functional teams to extract valuable insights, develop predictive models, and enhance data-driven decision-making processes. This role offers an exciting opportunity to impact our data strategy and drive meaningful change.

Mar 16, 2026
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physicsx logo
Full-time|On-site|London, United Kingdom

physicsx seeks a Principal Research Scientist based in London, United Kingdom. This position centers on guiding research projects that introduce new concepts and methods in physics. The work plays a key part in supporting the company’s mission to drive technological advancement through scientific discovery. Role overview As Principal Research Scientist, the main responsibility is to lead innovative research efforts. Projects will focus on developing and testing original approaches within the field of physics. The results of this research are intended to contribute directly to the company’s ongoing progress in technology. What you will do Lead and manage research projects from concept to completion Develop new ideas and experimental approaches in physics Ensure research aligns with the company’s goals for scientific and technological progress Location This role is based in London, United Kingdom.

Apr 27, 2026
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Faculty logo
Full-time|On-site|London

Why Join Faculty?Founded in 2014, Faculty is at the forefront of artificial intelligence, believing it to be the defining technology of our era. With a proven track record, we have partnered with over 350 global clients to enhance their performance through human-centric AI solutions. Discover our impact here.We prioritize genuine innovation over fleeting trends. Our commitment to responsible AI enables us to deliver solutions that drive significant results. Our extensive expertise spans across various sectors, including government, finance, retail, energy, life sciences, and defense.As our business continues to expand rapidly, we seek individuals who possess intellectual curiosity and a passion for leveraging technology to create a lasting positive impact.Join us in harnessing the power of AI to redefine its applications and make a tangible difference.About Our TeamThe Frontier TM product represents our bold ambition to create an enterprise-grade platform that integrates decision intelligence and AI Agents, optimizing critical processes in large organizations. You will tackle complex challenges within the real economy, focusing especially on healthcare and life sciences.Your RoleAs a Senior Data Scientist on the Frontier team, you will shape the future of our Decision Intelligence Platform by developing AI-powered digital twins that enhance organizational decision-making. This entrepreneurial role involves solving intricate problems while enabling enterprise users to leverage state-of-the-art AI technologies. You will combine scientific rigor with a business-oriented mindset to advance our AI Agent and Decision Hub capabilities.Key Responsibilities:Designing and Building: Create agents for high-stakes environments, ensuring that outputs meet rigorous validation standards.Data Analysis: Conduct exploratory data analysis, model development, validation, and performance monitoring.Leadership: Guide data science initiatives within cross-functional delivery teams, collaborating with engineers, designers, and business stakeholders.

Jan 21, 2026
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Faculty logo
Full-time|On-site|London

Why Join Faculty?Founded in 2014, Faculty believes that AI is the defining technology of our era. We have successfully partnered with over 350 global clients to enhance performance through human-centric AI solutions. Discover our real-world impact here.We prioritize innovation over hype, focusing on creating and implementing responsible AI that truly makes a difference. Our extensive expertise spans various sectors, including government, finance, retail, energy, life sciences, and defense.As our business and reputation continue to expand rapidly, we are eager to recruit individuals who are intellectually curious and passionate about building a positive legacy through technology.Join us in leveraging AI’s transformative power to revolutionize decision-making processes in critical fields.About the TeamThe Faculty Frontier™ product represents our ambitious goal of developing the first enterprise-grade platform that integrates decision intelligence with AI agents to optimize key processes in large organizations. You will tackle complex challenges with a focus on healthcare and life sciences.Role OverviewAs a Senior Data Scientist, you will play a pivotal role in shaping our Frontier Decision Intelligence Platform. You will lead the design and implementation of AI-powered digital twins that redefine organizational decision-making. Working within cross-functional teams, you will blend technical prowess with commercial insight to address intricate customer challenges. This is also an opportunity to mentor emerging talent while delivering impactful, production-grade AI solutions in a dynamic and entrepreneurial setting.

Feb 18, 2026
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Verve Group logo
Full-time|On-site|London, Greater London, United Kingdom

Who We Are Dataseat, a proud member of the Verve Group since July 2022, was founded by industry pioneers David Philippson and Dr. Paul Hayton. Our mission is to revolutionize how app marketers manage their programmatic media campaigns. We offer a cutting-edge Bidder or DSP as a service, empowering app marketers to take control of user acquisition and re-engagement through in-house programmatic media buying. Our comprehensive analytics provide clients with crucial insights on fraud, attribution accuracy, and incrementality, supporting marketers in building their in-house business case and optimizing their media strategy. Discover more at www.dataseat.com.

Mar 11, 2026
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Deliveroo logo
Full-time|On-site|London - The River Building HQ

Join Our Data & Science OrganizationAt Deliveroo, we pride ourselves on having a premier data science team dedicated to enhancing the quality of decision-making, both human and machine. Our data scientists collaborate across various departments, including product, business, and platform teams, employing techniques such as analysis, experimentation, causal inference, and machine learning. We leverage data to drive better decisions and enhance data literacy throughout the organization.As a Senior Data Scientist, you will be part of a vibrant community that fosters continuous learning through guest lectures, study groups, mentorship programs, and a rigorous technical review process. Our career paths allow data scientists to advance as technical leaders or people managers, depending on their aspirations.We welcome candidates from diverse backgrounds, all united by a commitment to excellence in data science. Our dedicated diversity committee ensures that we celebrate differences and promote inclusivity within our team.Your primary objective will be to maximize business impact in various areas, tackling critical questions such as:Which markets or cities should we expand into next?How can we encourage positive behavior among our riders?What effect do our exclusive restaurant deals have?How can we optimize our compensation policies to ensure customer satisfaction?What trade-offs should we consider between growth and profitability?How should our pricing strategy vary based on distance and market?What is the ideal selection and variety of restaurants in a specific area?How can we enhance our consumer app to better serve grocery shoppers?The work you do will have a tangible and direct influence on the company's bottom line.

Feb 18, 2026
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Quantium logo
Full-time|On-site|London

About QuantiumQuantium stands as a global frontrunner in data science and artificial intelligence. Founded in Australia in 2002, our diverse team of over 1,200 professionals operates across 14 locations, combining innovative product and consulting services to empower businesses in extracting value from their data and analytics. We collaborate with some of the largest corporations worldwide to create a smarter, more efficient future.Our Quantium Health UK division specializes in delivering cutting-edge AI, analytics, and digital consulting services tailored for clients in Health, Life Sciences, and HealthTech. Our mission is to leverage data's potential to enhance health outcomes for patients and healthcare providers. As a Data Scientist, you will engage with clients to address their specific needs, develop impactful use cases, utilize advanced analytics and machine learning techniques, and spearhead AI product innovations. Join us during this exhilarating phase of growth and work on transformative projects that make a difference.

Apr 8, 2026
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Utility Warehouse logo
Full-time|On-site|London

About the Role Utility Warehouse is looking for a Data Scientist to join the team in London. This position focuses on analyzing large and varied data sets to uncover insights that support business decisions. The Data Scientist will work closely with colleagues from different departments to build predictive models, run experiments, and strengthen the company’s analytics practice. What You Will Do Analyze complex data sets to identify trends and patterns Develop and refine predictive models Collaborate with teams across the business to support data-driven projects Design and conduct experiments to test hypotheses and improve outcomes Help advance Utility Warehouse’s overall data analytics capabilities Location This role is based in London.

Apr 17, 2026

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