Senior .NET Backend Engineer - Lead, Scale & Own Production

Trainline; Greater London; Hybrid; GBP 85,000 - 95,000; Full time

Benefits offered by this job

Private healthcare

Dental insurance

Work from abroad policy

Share purchase plan (2-for-1)

EV Scheme

Festive time off

Family-friendly benefits

Job summary

Trainline is hiring a Senior .NET Engineer to help build the backbone of our rail platform. You will own features end-to-end, mentor teammates, and drive technical decisions across the team.

Based in London with a hybrid model, you will work with AWS, Docker, Terraform, and GitHub Actions to deliver reliable, scalable services and ensure the best experience for millions of travellers across Europe.

Qualifications

• Proven experience with C#/.NET in production systems.
• Experience mentoring engineers and pairing on code.
• Experience designing and maintaining CI/CD pipelines.
• Hands-on experience with cloud platforms (AWS preferred).
• Familiarity with Terraform for IaC and container technologies.

Responsibilities

• Deliver new functionality or features using relevant tools and techniques.
• Maintain high code quality and continuously improve the code base.
• Own the development lifecycle from code to production, including deployment and monitoring.
• Collaborate with frontend engineers and other disciplines to deliver end-to-end features.
• Provide coaching and mentorship to teammates.

Skills

C# .NET

Mentoring

Pair programming

End-to-end features

Identity systems

CI/CD pipelines

Cloud platforms

Observability

Microservices

Event-driven

Distributed systems

Communication skills

Tools

Terraform

GitHub Actions

TeamCity

Spacelift

Docker

AWS

Job description

Trainline is hiring a Senior .NET Engineer to help build the backbone of our rail platform. You will own features end-to-end, mentor teammates, and drive technical decisions across the team.

Based in London with a hybrid model, you will work with AWS, Docker, Terraform, and GitHub Actions to deliver reliable, scalable services and ensure the best experience for millions of travellers across Europe.