Data Scientist at Trainline | London | Rezi

Data Scientist at Trainline

Data Scientist

Trainline · London

1 weeks ago

Data Scientist

Trainline · London

7 days ago
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About the Role

As a Data Scientist specialising in Marketing Measurement, you will shape how we evaluate marketing performance, turning complex and imperfect data into clear recommendations that support high-value commercial decisions. You will take ownership of a varied portfolio of focused, fast-moving measurement projects to understand marketing impact.

Responsibilities

  • Design and deliver robust approaches for measuring the effectiveness and incremental impact of marketing activity.
  • Use Python, causal inference and geo-experimentation techniques to analyse performance and generate commercially relevant insights.
  • Combine evidence from multiple data sources and measurement methods to provide a clear and balanced view.
  • Translate complex analytical findings into practical recommendations for marketing stakeholders.
  • Partner with marketing, analytics and cross-functional teams to define measurement questions and project scope.
  • Manage several focused analytical projects simultaneously, balancing pace, quality and business value.
  • Apply pragmatic judgement when working with incomplete or imperfect data.
  • Contribute to the development of marketing measurement capabilities, tools and ways of working.

Requirements

  • Strong practical experience using Python to analyse data and build measurement approaches.
  • Experience applying causal inference, geo-experimentation or related experimental methods to real-world business questions.
  • Pragmatic and commercially focused approach with the ability to balance analytical rigour with timely decision-making.
  • Strong communication skills to explain technical concepts to diverse stakeholders.
  • Confidence managing several projects or workstreams simultaneously.
  • Experience working collaboratively with marketing or analytics teams.
  • Curiosity, sound judgement and a willingness to work with ambiguity.

Skills

  • Python
  • Causal inference
  • Geo-experimentation
  • Marketing measurement
  • Marketing effectiveness
  • Marketing mix modelling

Location

  • London
  • Paris
  • Barcelona
  • Milan
  • Edinburgh
  • Madrid

Work Type

  • Hybrid
  • Minimum 60% office attendance over a 12-week period

Benefits

  • Private healthcare
  • Dental insurance
  • Work from abroad policy (28 days)
  • 2-for-1 share purchase plans
  • EV Scheme
  • Extra festive time off
  • Family-friendly benefits
  • Personal learning budgets
  • Regular learning days

About the Company

  • Europe’s number 1 downloaded rail app with over 135 million monthly visits.
  • FTSE 250 company collaborating with 270+ rail and coach companies in over 40 countries.
  • Committed to building a greener, more sustainable future of travel.

Equal Opportunity

  • Committed to creating inclusive places to work where diversity of gender, ethnicity, sexuality, disability, and nationality are valued and celebrated.