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Build scalable data pipelines, data models, feature stores, and cloud-native data applications supporting machine learning workloads. Partner with Machine Learning Engineers and Data Scientists to create reliable datasets, maintain production pipeline quality and observability, and support batch and real-time data systems. The role uses Python, SQL, Spark, Airflow, AWS, CI/CD, and modern data engineering technologies.

Lead production of the Group's IFRS annual and half-year financial statements, manage external audits, own cashflow forecasting and liquidity analysis, act as the primary technical accounting authority, implement new standards, oversee subsidiary statutory filings, drive controls and accounting policy, manage stakeholder and banking relationships, and lead cross-functional projects and a high-performing reporting team.

Manage end-to-end billing for non-rail revenue streams, including advertising and partnerships. Maintain billing registers, prepare accruals and management-account summaries, reconcile campaign delivery with invoices, review contracts, support debt recovery, and resolve billing discrepancies. Partner across Commercial, Billing, Credit, Accounts Receivable, and Finance Transformation to standardize workflows and implement automated billing solutions.

People Partner responsible for advising Customer Services and Operations, Fraud and Payments, and Corporate Affairs. The role manages employee relations cases, coaches managers, supports performance, absence, disciplinary, grievance, redundancy, and restructure processes, identifies people risks, and leads strategic people projects. Requires strong stakeholder management, commercial judgment, UK employment law knowledge, and experience working independently in a fast-paced environment.

Leads engineering across multiple full-stack web, backend, and mobile squads within Trainline’s Customer Growth pillar. Manages Engineering Managers, develops talent, oversees complex delivery, guides technical strategy and architecture, and connects railcard, subscription, retention, and customer value domains. Partners with Product, Design, Data, and Commercial teams to drive business outcomes. Champions engineering quality, innovation, monitoring, alerting, incident management, operational excellence, and a high-performing, inclusive culture.

Lead multiple engineering teams across Trainline’s white-label and Digital Pay as You Go products. Own OKR delivery, technical health, roadmaps, cross-team dependencies, and technical direction while partnering with Product, Data, and Commercial stakeholders. Coach engineers and managers, develop future leaders, promote scalable and resilient systems, and drive operational excellence through monitoring and incident management.

Design and deliver marketing measurement using Python, causal inference and geo-experiments. Combine multiple data sources, translate findings into commercial recommendations, manage simultaneous projects, and partner with marketing and analytics to improve measurement capability.

Lead multiple engineering teams to drive platform modernization and adopt AI workflows. Partner with stakeholders, balancing strategy and operational excellence.

As the Head of Machine Learning Engineering, you will define the ML strategy, lead teams, deliver scalable solutions, and shape AI governance for enhanced customer travel experiences.

As a .NET Engineer at Trainline, you will develop features, ensure code quality, mentor team members, and manage the development lifecycle.