Data Scientist at Trainline | London

Join our dynamic team at Trainline as a Data Scientist, where you will leverage data to drive insights and influence strategic decisions. You will work with cross-functional teams to develop models that enhance our customer experience and optimize our operations. If you have a passion for data and want to make a real impact in the travel industry, this is the opportunity for you!

Join our dynamic team at Trainline as a Data Analyst! In this pivotal role, you will leverage data to drive insights that influence strategic decisions. Your analytical expertise will help optimize our operations and enhance customer experiences. Collaborate with cross-functional teams and utilize advanced data analysis techniques to uncover trends and present actionable recommendations.

About UsAt Trainline, we are committed to revolutionizing travel by fostering a sustainable future. Our platform empowers millions of travelers to discover and book the most cost-effective tickets across various carriers and fares, utilizing our highly-rated mobile app, website, and B2B partner channels.Join Us on Our Journey As Europe’s leading downloaded rail app, we experience over 125 million monthly visits and facilitate £5.9 billion in annual ticket sales. Collaborating with over 270 rail and coach companies across more than 40 countries, we strive to make travel simple, seamless, eco-friendly, and affordable.As a FTSE 250 company, our diverse team of over 1,000 Trainliners hails from more than 50 nationalities and operates from key cities including London, Paris, Barcelona, Milan, Edinburgh, and Madrid. With a focus on growth across the UK and Europe, now is the ideal time to join us on this exhilarating journey.Elevating Machine Learning & AI at Trainline Machine learning is pivotal to our mission of enabling millions to make sustainable travel choices daily. Within our AI & ML community, we develop and maintain production-grade systems that enhance search, pricing, personalization, and marketing optimization while increasingly deploying intelligent AI agents to transform customer support and journey discovery.You will collaborate with a dynamic team of Machine Learning Engineers and Data Engineers on innovative GenAI initiatives, including our Travel Assistant—an AI-driven tool that assists customers with refunds, journey updates, and ticket conditions, alongside developing Voice AI agents for effective customer query handling.Our team merges robust ML principles with the latest LLM frameworks (LangGraph, LangChain), RAG architectures, MCP integrations, and production monitoring tools such as Braintrust, all deployed on AWS. We foster an environment that values ownership, curiosity, and thoughtful experimentation.Role OverviewIn this role, you will focus on the design, development, and operation of LLM-powered and predictive ML systems in production. You will work on AI systems like our Travel Assistant and Voice AI initiatives while contributing to traditional ML services owned by the team.

About UsAt Trainline, we are passionate advocates for rail travel, dedicated to creating a greener and more sustainable future for travel. Our platform empowers millions of travelers to discover and book the most cost-effective tickets across various carriers, fares, and journey options through our highly-rated mobile app, website, and B2B partner channels.Join Us in Creating Great Journeys As Europe’s leading rail app, we attract over 125 million monthly visits and facilitate £5.9 billion in annual ticket sales. Collaborating with over 270 rail and coach companies across more than 40 countries, we envision a world where travel is simple, seamless, eco-friendly, and affordable. Today, as a FTSE 250 company, our diverse team of over 1,000 Trainliners from 50+ nationalities is based in London, Paris, Barcelona, Milan, Edinburgh, and Madrid. With a strong focus on growth in the UK and Europe, this is an exciting time to join us on this high-speed journey.Introducing the Reliability & Operations Engineering Team Trainline is at the forefront of technology, delivering world-class digital experiences for millions of customers. Our platform predominantly operates on AWS, utilizing cloud-native architecture, modern CI/CD pipelines, and robust DevOps and SRE methodologies.The Reliability & Operations Engineering team (ReliabilityOps) integrates SRE, Incident Management, and Database Reliability to ensure our platform remains observable, reliable, scalable, and resilient. We work closely with product engineering teams to facilitate safe delivery, respond to incidents, and consistently enhance system reliability.We are in search of a mid-level Site Reliability Engineer who will be instrumental in driving our initiatives forward. You will bring solid production experience, a growth mindset, and a readiness to challenge and be challenged, all while contributing to platform reliability and developing broader technical ownership with guidance from senior engineers.

Join Trainline as a Senior Finance Manager, where you will play a pivotal role in shaping our financial strategies and driving operational excellence. You will lead a dynamic team, ensuring financial accuracy and compliance while enhancing our budgeting and forecasting processes. Your expertise will be instrumental in optimizing our financial performance, providing valuable insights to guide our business decisions.

Role overview Trainline is looking for a Senior Product Manager to join the TPS team in London. This role leads the direction of travel technology products, working closely with teams across the business to set product vision and strategy. What you will do Define and maintain product roadmaps for the TPS area Prioritize features based on business goals and user needs Work with engineers, designers, and stakeholders to deliver valuable updates Gather and analyze customer feedback, turning it into practical product improvements

Join Trainline as a Data Engineer and become an integral part of our dynamic data team. In this role, you will leverage cutting-edge technologies to build and maintain robust data infrastructure that supports our mission of providing seamless travel solutions. Your expertise will contribute to optimizing data pipelines, ensuring data quality, and delivering actionable insights that drive strategic decisions.

About UsAt Trainline, we are advocates for rail travel, dedicated to creating a sustainable future for all travelers. Our platform empowers millions to discover and book the most cost-effective ticket options across various carriers through our award-winning mobile app, website, and B2B partner networks.Join Us on Our Journey As Europe’s leading rail app, we boast over 125 million monthly visits and an impressive £5.9 billion in annual ticket sales. We partner with more than 270 rail and coach companies across over 40 countries, striving to make travel straightforward, eco-friendly, and affordable.With our headquarters in London and teams spanning across Paris, Barcelona, Milan, Edinburgh, and Madrid, we are a FTSE 250 company fueled by a diverse team of over 1,000 professionals from 50+ nationalities. As we continue to expand our footprint in the UK and Europe, now is an excellent time to join our high-speed journey.About Trainline Partner SolutionsThe Strategic Business Development Manager role is positioned within the B2B Distribution’s Channel Partners & Business Development Team at Trainline Partner Solutions. Here, we collaborate with Online Booking Tools (OBT) and Global Distribution Systems (GDS) to provide access to rail content across multiple markets, enabling Travel Management Companies (TMC) and their corporate clients to book rail travel effortlessly.As the Strategic Business Development Manager, you will play a crucial role in nurturing and expanding relationships with key channel partners. This position encompasses managing existing accounts while also driving new sales opportunities through these partnerships, specifically focusing on the DACH region.You will act as the primary liaison between Trainline and our partners, facilitating strategic relationships to ensure a mutually beneficial rail offering. Key responsibilities include identifying, negotiating, and securing new opportunities, collaborating with channel partners to enhance rail bookings, and exploring new leisure travel markets such as OTAs, MaaS, and Tour Operators.

About UsAt Trainline, we are passionate advocates for rail travel, dedicated to crafting a sustainable and eco-friendly travel future. Our platform empowers millions of travelers to discover and reserve the most cost-effective tickets across various carriers and journey options via our award-winning mobile app, website, and B2B partnerships.Join the Journey with Trainline As Europe's leading rail app, we boast over 125 million monthly visits and generate £5.9 billion in annual ticket sales. Collaborating with over 270 rail and coach companies across more than 40 countries, we aim to make travel simple, seamless, and affordable.With our team of over 1,000 talented individuals from more than 50 nationalities, our offices span London, Paris, Barcelona, Milan, Edinburgh, and Madrid. With growth at the forefront of our mission in the UK and Europe, now is the ideal time to embark on this exciting journey with us.The Data Engineering Team at Trainline As a Principal Data Engineer, you will serve as a senior technical leader, working across various teams to instill best practices, elevate engineering standards, and drive ambitious data, ML, and AI projects.You will proactively identify high-impact challenges across cross-functional squads, collaborating closely with Machine Learning Engineers (MLEs), ML Engineering Managers, and Product and Platform teams to create robust, scalable, and future-proof data foundations for ML-driven products, including our innovative Travel Assistant.Embedded Data Engineering (Embedded DE) is a vital aspect of your role. You will integrate within ML-led teams, shaping architecture, guiding implementation, and ensuring alignment between Data Engineering and ML Engineering best practices across Trainline.Key Responsibilities as a Principal Data Engineer: Act as a technical authority across multiple teams, establishing standards and frameworks for data and ML-adjacent infrastructure.Collaborate with ML teams to design, develop, and enhance data platforms that support AI and ML workloads.Influence technical direction while not holding direct line management responsibility.Partner with the Data Engineering team to drive excellence in data management practices.

Join Trainline as a Data Analyst in our Marketing team and play a vital role in transforming how our customers travel. You will leverage data to derive insights that drive decision-making, optimize marketing strategies, and improve customer engagement. Your analytical skills will be key in shaping our data-driven culture.

Join Trainline as a Junior Data Engineer and embark on an exciting journey to revolutionize the rail travel experience through data-driven solutions. In this role, you will collaborate with a dynamic team of professionals, utilizing cutting-edge technologies to manage and optimize our data infrastructure. Your contributions will directly impact our mission to simplify rail travel for millions of customers.

Join our dynamic team at Trainline as a Junior Ruby Engineer! This is an exciting opportunity for those looking to kickstart their career in software development. You will collaborate with a talented group of engineers to design, develop, and maintain innovative applications that streamline travel for millions of users.As part of our London-based team, you will be immersed in a culture of learning and growth, where your contributions will have a real impact on our products and services. We are looking for a passionate individual who thrives in a collaborative environment and is eager to learn from experienced developers.

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.

Trainline connects millions of travelers with rail and coach tickets across Europe through its app and website. The company partners with over 270 operators in 40 countries, supporting more than 135 million monthly visits and £6.3 billion in annual ticket sales. Trainline’s commitment to a sustainable future shapes its mission to make journeys simpler, greener, and more affordable. Headquartered in London and listed on the FTSE 250, Trainline employs over 1,000 people from more than 50 nationalities, with offices in Paris, Barcelona, Milan, Edinburgh, and Madrid. The business is growing its presence both in the UK and across Europe. Role overview This is a 12-month fixed-term contract based in London. The AI Transformation Lead for People will guide the adoption of AI within Trainline’s People function. The focus is on pinpointing high-value opportunities, shaping practical solutions, and integrating AI-driven tools and processes into daily People operations. Collaboration is central in this position, which bridges the People, Technology, and Data teams. The aim is to transform work across the employee lifecycle by introducing AI, automation, and agent-based workflows. This work is intended to increase efficiency, enhance employee experience, and free up resources for more strategic initiatives. What you will do Review People processes, systems, and workflows to identify valuable opportunities for AI implementation. Create and deliver an AI roadmap focused on outcomes, with an emphasis on speed and business impact. Partner with People leadership to select and prioritize a portfolio of AI use cases. Promote AI adoption in the People function and ensure alignment with Trainline’s broader AI strategy.

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.

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.

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.

Join Entain, a global leader in sports betting and gaming entertainment, as a Senior Data Scientist. In this pivotal role, you will leverage cutting-edge analytics and machine learning techniques to drive data-driven decisions that enhance our customer experience and optimize business operations.Your expertise will be critical in developing predictive models, conducting complex data analyses, and collaborating with cross-functional teams to implement data strategies that support our ambitious growth objectives.

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.

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.