Trainline Logo

Trainline

Senior Backend Engineer - .Net

Posted 22 Days Ago
Be an Early Applicant
In-Office
London, Greater London, England, GBR
Senior level
In-Office
London, Greater London, England, GBR
Senior level
Designs and develops backend services for Trainline’s insurance products using C# and .NET. The role includes making technical decisions, mentoring engineers, owning software from development through deployment and monitoring, improving code quality, and removing delivery blockers. Responsibilities involve building scalable microservices and event-driven systems, working with AWS and infrastructure tooling, maintaining observability and reliability, and collaborating across engineering and product disciplines.
The summary above was generated by AI

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 the Backend teams at Trainline 👋

Trainline’s Backend teams build the core of our product: the journey search that millions of customers use daily, the eCommerce platform behind every booking, and integrations with 270+ travel operators across 45 countries. Each team owns a focused domain, from accounts and notifications to search, payments, carrier integrations and real-time timetables. We’re hiring for our Insurance team, which builds the protection that sits alongside the booking, like Trainline Flex and Trip Cover, so customers can travel with confidence and be prepared when plans change.

As a Senior .NET Engineer at Trainline you will...🚄

  • Shape technical decisions and help the team make good ones

  • Coach and mentor other engineers, and learn from them too

  • Own your work from code through to production, including deployment and monitoring

  • Spot and remove blockers, time sinks and waste, for yourself and the team

  • Keep quality high and keep improving the codebase

Our Tech Stack...🗝️
C# (.NET 6 to 10), DynamoDB, PostgreSQL, AWS, Docker, Terraform, GitHub Actions, New Relic, ELK


You’ll be a great fit if you 🔍

  • Communicate clearly and enjoy working as part of a team, whether that’s pair-programming, mentoring or collaborating with front-end engineers and other disciplines

  • Have strong hands-on C# and .NET experience, including recent features

  • Have built and run microservices and event-driven systems, with a solid grasp of distributed systems and scale

  • Are comfortable with AWS (Azure or GCP also valuable), Terraform and CI/CD pipelines

  • Care about observability and keeping production reliable (New Relic, ELK or equivalents)

  • Are curious about AI and emerging tools

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! 

HQ

Trainline London, England Office

3rd Floor, 120 Holborn, London, United Kingdom, EC1N 2TD

Similar Jobs

3 Days Ago
In-Office or Remote
London, Greater London, England, GBR
Senior level
Senior level
Fintech • Payments • Financial Services
Build and operate distributed, event-driven C# and .NET microservices on Azure and Kubernetes. Own services throughout their lifecycle, including design, deployment, observability, production support, on-call operations, and continuous improvement. Collaborate with distributed teams across time zones while using AI tools for design, coding, testing, reviews, incident investigation, and technical communication.
Top Skills: .NetAzureAzure Application InsightsAzure Service BusC#ClaudeGrafanaKafkaKubernetesRabbitMQ
2 Months Ago
Hybrid
London, Greater London, England, GBR
Senior level
Senior level
Software • Transportation
The Senior Backend Engineer will develop features, improve code quality, mentor others, and manage the development lifecycle while focusing on customer priorities and technical decisions.
Top Skills: .Net 6-10Aws CloudC#DockerDynamoDBElk StackGithub ActionsNew RelicPostgresTerraform
Yesterday
Easy Apply
Hybrid
London, Greater London, England, GBR
Easy Apply
Expert/Leader
Expert/Leader
Fintech • Information Technology • Payments • Productivity • Software • Travel • Automation
Leads EMEA field marketing strategy, demand generation, regional campaigns, events, account-based initiatives, team development, budget management, and marketing analytics. Partners with Sales, Customer Success, RevOps, Partnerships, and Global Marketing to generate pipeline, accelerate revenue, localize global programs, optimize lead conversion, and strengthen the company’s regional presence.

What you need to know about the London Tech Scene

London isn't just a hub for established businesses; it's also a nursery for innovation. Boasting one of the most recognized fintech ecosystems in Europe, attracting billions in investments each year, London's success has made it a go-to destination for startups looking to make their mark. Top U.K. companies like Hoptin, Moneybox and Marshmallow have already made the city their base — yet fintech is just the beginning. From healthtech to renewable energy to cybersecurity and beyond, the city's startups are breaking new ground across a range of industries.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account