Junior Android Engineer
Confirmed on the employer's own hiring board on Nov 2, 2026. First seen by Alion on Oct 30, 2026.
About us
At Trainline, our purpose is to empower greener travel choices, connecting people and places. 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
We’re Europe’s leading independent rail platform, helping millions of travellers find and book the best-value rail and coach journeys across our app, website and partner channels.
Our job is to make the green travel choice the best choice. By building a better train travel experience, we help more people choose rail - creating a positive impact for customers, our business and the planet.
We’re a team of more than 1,000 Trainliners from over 50 nationalities, working across London, Paris, Barcelona, Milan, Edinburgh and Madrid. Now is a brilliant time to join us and help shape the future of travel.
Introducing our Mobile team
You would be joining one of our 3 Mobile platform teams. We set the technical direction and provide the shared foundations, tools and standards that enable engineers to build, release and evolve the app safely and quickly. We are also responsible for the main quality metrics of the app to make it feel quick and reliable on the devices of our customers.
Key technologies include: Kotlin, Coroutines, Jetpack Compose, Dagger, SOLID principles with a huge focus on quality and clean code.
As an Engineer at Trainline, you will...
Be a part of a cross-functional team that will contribute to the design and implementation of our software in the product for Android users.
Appreciate the value of agile and of engineering practices, and solid, clean code.
Be actively involved in all aspects of the product lifecycle.
Work closely with the team and Product to help drive & deliver roadmaps.
Help to build and deliver software using Agile practices (SCRUM, two weeks iterations), continuous integration and pair programming.
Be delivering new functionalities and features, using the best tools and techniques for the job.
We'd love to hear from you if you...
Have good working experience with Kotlin
Are enthusiastic for a great user experience
Have a passion for continuous delivery
Have experience working with Git
Have solid grasp of Design Patterns, SOLID & Clean Code Principles, CI/CD...
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 operating a hybrid model 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!