Senior Data Analyst - Marketing

Trainline International Limited; City of London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A digital travel company in the City of London is seeking a Senior Data Analyst to own the marketing analytics lifecycle and drive insights for growth. You will collaborate closely with cross-functional teams, design A/B tests, and communicate results effectively. The ideal candidate has over 5 years of experience in marketing analytics and strong skills in SQL and Python. This position offers a hybrid work model and excellent career growth opportunities.

Benefits

Private healthcare & dental insurance

Generous work from abroad policy

2-for-1 share purchase plans

EV Scheme

Qualifications

• 5+ years experience in a Marketing Analytics role.
• Strong hands-on SQL and Python skills.
• Experience with A/B testing including metric selection and test analysis.
• Proven ability to partner cross-functionally with Product, Engineering, and Design.
• Strong data visualisation skills.

Responsibilities

• Own the full marketing analytics lifecycle in an embedded marketing team.
• Deep-dive into acquisition and marketing trends.
• Design, execute and analyse A/B tests with sound statistical principles.
• Translate findings into actionable recommendations.

Skills

SQL

Python

A/B testing

Data visualization

Communication

Tools

Tableau

Power BI

Spotfire

Job description

About Us We are champions of rail, inspired to build a greener, more sustainable future of travel. Trainline enables millions of travellers to find and book the best value tickets across carriers, fares, and journey options through our highly rated mobile app, website, and B2B partner channels.

Introducing Data Analytics at Trainline Data Analytics is central to how we build products, delight our customers and grow our business. Our Data Analysts are embedded across cross‑functional teams that exist across product and marketing. They work closely with Product Managers, Software Engineers, Commercial and partner directly with Embedded Data Scientists and wider data functions. They have a high degree of autonomy and are empowered to drive the success of their teams by enabling the build, measure, learn cycle.

As a Senior Data Analyst you will be involved in driving insights into user acquisition, and marketing efficiency to enable us to set an impactful growth strategy. You’ll create focus and accountability in teams by setting metrics and goals, ensure we’re learning as we progress through experimentation and ensure we’re feeding insights back into marketing decision making. Ultimately this will require a complete obsession with driving impact within the marketing teams, drawing on a broad range of analytical and statistical techniques to unlock the most benefit.

As a Senior Data Analyst at Trainline, you will…

• Own the full marketing analytics lifecycle in an embedded marketing team
• Deep‑ dive into acquisition and marketing trends, uncover friction points, and size opportunities
• Define north star metrics, primary KPIs, and guardrails for features and experiments
• Design, execute and analyse A/B tests using sound statistical principles (MDE, power, duration, etc)
• Translate findings into clear, actionable recommendations to help drive product strategy
• Build data models and pipelines with support from Data Engineering and Data Scientists

We'd love to hear from you if you have…

• 5+ years experience in a Marketing Analytics role
• Strong, hands‑on SQL and Python skills
• Experience with A/B testing: hypothesis design, metric selection, test analysis (including power/MDE)
• Proven ability to partner cross‑functionally with Product, Engineering and Design
• Strong data visualisation skills using tools like Tableau, Spotfire, Power BI etc.
• Ability to communicate insights clearly and tailor messages for both technical and non‑technical audiences
• Comfortable working in ambiguity, prioritising impact, and owning decisions

Bonus points if you have…

• Familiarity with dbt, Looker, or similar modern data tools
• Experience with mobile or consumer web product

Benefits

Enjoy fantastic perks like private healthcare & dental insurance, a generous work from abroad policy, 2‑for‑1 share purchase plans, an EV Scheme to further reduce carbon emissions, extra festive time off, and excellent family‑friendly benefits.

We prioritise career growth with clear career paths, transparent pay bands, personal learning budgets, and regular learning days. Jump on board and supercharge your career from day one!

We operate a hybrid model to work and ask that Trainliners work from the office a minimum of 40% of their time over a 12‑week period. We also have a 28‑day Work from Abroad policy.

Our values represent the things that matter most to us and what we live and breathe everyday, in everything we do. We know that having a diverse team makes us better and helps us succeed. And we mean all forms of diversity – gender, ethnicity, sexuality, disability, nationality and diversity of thought. That’s why we’re committed to creating inclusive places to work, where everyone belongs and differences are valued and celebrated.