# Senior Backend Engineer - .Net

**Company**: Trainline
**Location**: London
**Work arrangement**: hybrid
**Experience**: senior
**Job type**: Full time
**Salary**: £85K - £95K
**Category**: Engineering
**Industry**: Technology

**Apply**: https://jobs.ashbyhq.com/trainline/f1a75db9-5df2-4c51-91c1-17f7ed85c4cd?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_7eba2f8e-68a

## Description

We are looking for a Senior Backend Engineer to join our team at Trainline, a leading independent rail platform. You will be responsible for delivering new functionality or features, ensuring quality is at the heart of everything you and your team do, continuously improving the code base, and keeping our customer as the number one priority.

**Responsibilities:**

- 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

**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

**Requirements:**

- Experience mentoring less experienced engineers and comfortable pair-programming with colleagues

- Hands on experience with C# .NET and the latest features

- Experience collaborating with front-end engineers and other disciplines to deliver end-to-end features and cross-functional epics

- Experience working with identity and authentication systems (e.g. IdentityServer, OpenID Connect, OAuth2)

- Experience designing and maintaining CI/CD pipelines (e.g. GitHub Actions, TeamCity, Spacelift or similar tools)

- Experience with cloud platforms (AWS preferred; Azure or GCP also valuable)

- Hands-on experience with Infrastructure as Code, particularly Terraform

- Strong experience with observability practices (logging, monitoring, alerting)

- Familiarity with tools such as New Relic and ELK stack (or equivalents)

- Curiosity about AI and emerging tools

- Experience supporting production systems and improving reliability

- Strong experience building and operating microservices architectures

- Experience with event-driven systems and asynchronous messaging patterns

- Solid understanding of distributed systems and scalability challenges

- Have excellent communication skills

**Benefits:**

- £85K – £95K salary

- Fantastic perks like private healthcare & dental insurance

- Generous work from abroad policy

- 2-for-1 share purchase plans

- An EV Scheme to further reduce carbon emissions

- Extra festive time off

- Excellent family-friendly benefits

## Skills

### Required
- C#
- .NET
- DynamoDB
- PostgreSQL
- AWS Cloud
- Docker
- Terraform
- GitHub Actions
- New Relic
- ELK Stack

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Source: [Apply at jobs.ashbyhq.com](https://jobs.ashbyhq.com/trainline/f1a75db9-5df2-4c51-91c1-17f7ed85c4cd?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)