Posted August 6, 2026. The role appears to have been filled or removed. Check out similar open roles below.
A natural match if you have experience with high-volume transactional systems and mentoring. This mid-level role in London emphasizes ownership of the development lifecycle and collaboration within a diverse, fast-paced team.
Derived from job-description analysis by Serendipath's career intelligence engine.
Original posting from Trainline via Ashby
About us
At Trainline, our purpose is to empower greener travel choices, connecting people and places. https://www.thetrainline.com/terms/sustainability-faqs 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 THE BACKEND TEAMS AT TRAINLINE👋
The Backend teams at Trainline build the core of Trainline’s world class product. We create the journey search functionality that millions of our customers use on a daily basis, the eCommerce platform that provides a secure and seamless experience and we connect Trainline to over 270 travel operating companies, across 45 countries in Europe and the rest of the world. Each team has a targeted domain focus, ranging between journey search, fares calculation, bookings, fulfilment, payments, refunds, carriers’ integrations, real-time timetable information, journey disruptions and much more.
AS A MID LEVEL .NET ENGINEER AT TRAINLINE YOU WILL...🚄
- Deliver new functionality or features, using the most appropriate tools & techniques
- Ensure quality is at the heart of everything you and your team do
- Continuously improve the code base
- Keep our customer as the number one priority
- Actively identify blockers, boulders, time sinks and waste, and actively attempt to remove them
- Make significant contribution to technical decisions
- Act as a coach and mentor to others in the team
- Take full ownership of the development lifecycle from code to production, including deployment and monitoring
OUR TECH STACK 🔑
- Languages & Frameworks: C# (.NET 6–10)
- Databases: DynamoDB, PostgreSQL
- Cloud & Infrastructure: AWS Cloud, Docker, Terraform
- CI/CD & DevOps: GitHub Actions
- Monitoring & Logging: New Relic, ELK Stack
WE'D LOVE TO HEAR FROM YOU IF YOU...🔍
- Have hands on experience with C# .NET and the latest features
- Love using Agile development practices
- Have hands on experience working on software development of high-volume transactional applications
- Have experience in asynchronous service/processing
- Test your solutions effectively
- Enjoy mentoring less experienced engineers
- Have experience with CI/CD
- Thrive in a diverse, open and collaborative environment
- Have great communication skills
- Are proactive, focused, supportive, honest and a team player
- Have a passion to learn new skills
More information:
Enjoy fantastic perks https://www.trainlinegroup.com/media/hfybhgrt/trainline_benefits_explorer_8.html 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 https://www.linkedin.com/company/trainline/, Instagram https://www.instagram.com/lifeattrainline/ and Glassdoor https://www.glassdoor.co.uk/Overview/Working-at-Trainline-EI_IE249203.11,20.htm!
Source: Trainline careers (Ashby)