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.
Great journeys start with Trainline 🚄
Now Europe’s number 1 downloaded rail app, with over 125 million monthly visits and £5.9 billion in annual ticket sales, we collaborate with 270+ rail and coach companies in over 40 countries. We want to create a world where travel is as simple, seamless, eco-friendly and affordable as it should be.
Today, we're a FTSE 250 company driven by our incredible team of over 1,000 Trainliners from 50+ nationalities, based across London, Paris, Barcelona, Milan, Edinburgh and Madrid. With our focus on growth in the UK and Europe, now is the perfect time to join us on this high-speed journey.
About Trainline Advertising
Trainline Advertising’s vision is to offer the most marketplace-centric advertising to connect rail and coach travellers with advertisers at the right moments. Trainline Advertising will enable advertisers to engage with our customers through the entire marketing funnel - from awareness through to purchase and loyalty.
Introducing the Client Success Manager at Trainline 👋
As a Client Success Manager, you will be a trusted advisor and strategic partner to some of Trainline’s most important clients. Your mission is to ensure long-term success, value delivery, and measurable impact across each relationship.
You’ll manage the post-sale journey, overseeing the end-to-end campaign lifecycle from onboarding through campaign launch, optimisation and reporting. Your role is to deliver high-quality client service, lead campaign strategy and deliver insightful performance reviews – and to work closely with the Ad Ops team who will be buying and optimising the media. You’ll also work hand-in-hand with our Sales team to shape account strategies, support future pipeline development, and uncover opportunities for expansion. You’ll play a central role in retaining key clients, growing our partnership with them, and driving repeat and scaled investment through proactive, data-informed client management.
Responsibilities
Lead seamless onboarding experiences and ensure new clients are positioned for long-term success from day one.
Act as the primary contact for a portfolio of clients, cultivating strong, strategic relationships grounded in trust and data-driven results.
Deliver clear performance insights and reporting, highlighting return on investment and value delivered.
Identify and pursue opportunities to grow accounts through upsell, renewal, and strategic expansion conversations.
Partner with Sales to define account strategies, contribute to commercial planning, and support deal execution.
Anticipate client needs and proactively address potential risks to satisfaction or retention.
Gather and share client insights internally to influence product roadmap, proposition design, and delivery models.
Help evolve our client success methodology, contributing to the creation of scalable, high-impact processes and frameworks as we grow as a business.
Stay up to date with trends in digital advertising, martech, and client success best practices to ensure we stay ahead of the curve.
About You
Bring experience in client success, account management, or digital media, ideally in a programmatic or SaaS environment.
Solid understanding of Programmatic advertising, including the ecosystem, key players, technology, and common targeting and ad formats
Are comfortable working cross-functionally with Sales, Product, and Ad Ops teams to build integrated solutions.
Combine data literacy and storytelling, translating performance metrics into clear, actionable insight.
Excellent communication and relationship management skills, including confidence with senior stakeholders.
Thrive in fast-paced, high-growth settings, balancing multiple priorities without losing focus on what truly moves the needle.
Experience working in or with media agencies and understanding of the media agency landscape.
More information:
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're operate a hybrid model to work and ask that Trainliners work from the office a minimum of 60% 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:
💭 Think Big - We're building the future of rail
✔️ Own It - We focus on every customer, partner and journey
🤝 Travel Together - We're one team
♻️ Do Good - We make a positive impact
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.
Interested in finding out more about what it's like to work at Trainline? Why not check us out on LinkedIn, Instagram and Glassdoor!
Top Skills
Trainline London, England Office
3rd Floor, 120 Holborn, London, United Kingdom, EC1N 2TD
