Trainline
Senior Backend Engineer - Developer Experience
How your CV stacks up
Upload your CV to see how well it fits this job role
?%
Senior C# Engineer – Cloud Native Developer Experience
About the Role
At Trainline, we're modernising our backend services to create a more scalable, resilient, and efficient engineering platform through our Cloud Native Acceleration Programme.
As a Senior C# Engineer, you'll:
- Shape the company's cloud-native engineering standards
- Modernise existing .NET services
- Build reusable patterns and automation to accelerate engineering
- Elevate developer experience and platform resilience across Trainline
Success is measured through modernisation of services, technical leadership, collaboration, and adoption of cloud-native practices.
Responsibilities
In this role, you will:
- Modernise existing .NET services by containerising applications for Amazon ECS, reducing legacy infrastructure dependencies, and optimising cloud-native operations.
- Design resilient distributed systems by improving health checks, fault tolerance, observability, and runtime behaviour to enhance service reliability and reduce operational incidents.
- Define evolving .NET migrations through reusable service templates, engineering standards, and best practices for:
- Dependency injection
- Configuration
- Logging
- Monitoring
- Deployment
- Develop automation and AI-assisted tooling that speeds up cloud migration by:
- Analysing existing services
- Identifying modernisation opportunities
- Generating infrastructure and deployment scaffolding
- Optimise containerised workloads for performance, resource utilisation, and scalability.
- Drive technical collaboration across Trainline to:
- Adopt cloud-native engineering practices
- Influence technical direction
- Build consensus on migration approaches
- Contribute to CI/CD pipeline and deployment process improvement, enabling faster, safer, and more consistent software delivery.
- Champion cloud-native engineering through:
- Technical leadership
- Documentation
- Design reviews
- Demos
- Mentoring
- Community engagement
Reasons to use Rodeo
Start with a chat, not a search bar
Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
It searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
Requirements
We're looking for you if you have:
Core Skills
- Strong professional experience with C# and .NET, alongside knowledge of software engineering principles and modern backend architecture.
- Deep understanding of distributed systems, including:
- Resilience patterns, scalability, observability, and performance optimisation.
- Experience creating reusable engineering patterns, frameworks, and shared libraries to improve consistency and developer productivity across teams.
- Excellent collaboration and communication skills to work across engineering teams and influence technical decisions through expertise.
- A passion for improving engineering practices and legacy system modernisation, with a measureable impact on business outcomes.
Infrastructure and Cloud Native Experience
- Terraform (or equivalent) experience in deploying Infrastructure as Code.
- Proficiency with CI/CD methodologies for modern software delivery.
- Hands-on experience building and managing cloud-native applications using containers and orchestration technologies within AWS and Amazon ECS.
AI Experience
- Familiarity with using AI-assisted engineering tools to boost productivity, quality, and software delivery.
- Ability to critique AI outputs with sound judgement.
- Curiosity about AI's evolving landscape and potential applications in engineering workflows, automation, and developer experience—preferably through direct hands-on experience.
Get help with your application
Your very own career expert that helps elevate your application to the next level.
Communication & Influence
- A proven track record of influencing technical decisions across teams through collaboration and communication.
- Outstanding skills to explain technical concepts to diverse stakeholders and build trusted relationships.
- Capability to drive organisational adoption of engineering standards and best practices.
Benefits
Trainline offers an exceptional benefits package including:
- Private healthcare and dental insurance.
- A generous work-from-abroad policy.
- 2-for-1 share purchase plans.
- An Electric Vehicle (EV) Scheme, aiding in further carbon emission reduction.
- Extra festive time off.
- Premier family-friendly benefits.
Career growth is prioritised with:
- Clear career paths.
- Transparent pay bands.
- Personal learning budgets.
- Regular learning days.
Work Model & Values
We operate a hybrid model, with a minimum 60% office time over any 12-week period and a 28-day Work from Abroad policy.
Our core values define our culture:
- "Think Big" – Building the future of rail.
- "Own It" – Focussing on every customer, partner, and journey.
- "Travel Together" – Uniting as one team.
- "Do Good" – Making a positive impact.
At Trainline, we’re committed to diversity, inclusion, and belonging. We celebrate differences in gender, ethnicity, sexuality, disability, nationality, and thought.
Ready to make your next move? Visit our LinkedIn, Instagram, and Glassdoor pages for an inside look!
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
Skills
Location