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# Platform Engineer

- **Company:** The Trainline
- **Location:** UK
- **Contract:** Permanent contract
- **Skills:** Amazon Web Services, Amazon Cloudfront, Amazon S3, C Sharp (Programming Language), Code Review, Continuous Delivery, Continuous Integration, DevOps, Github, Identity and Access Management, Python (Programming Language), Node.Js, Software Engineering, Functional Programming, Software Coding, Terraform, Programming Languages
- **Published:** October 7, 2026
- **Apply:** https://startup.jobs/platform-engineer-trainlinegroup-com-8578267

## About the Role

* Professional experience as a software engineer, writing code in Python, Node.js, C# or a similar programming language.
 * An understanding of software engineering best practice, with a focus on writing clean, maintainable and testable code.
 * Experience with AWS services such as ECS, Lambda, CloudFront, IAM and S3, following operational and security best practice.
 * Experience delivering infrastructure with Terraform or another infrastructure as code tool.
 * An understanding of DevOps practices and CI/CD, for example using GitHub Actions.
 * Experience using AI tooling in your day-to-day work, for example for coding, code review, research and productivity.
 * A curious mindset and the ability to pick up new technologies quickly and apply them well.

## Description

You'll join a collaborative team of software and platform engineers at all levels of experience. We work across Terraform, AWS, Node.js, C# and Python, and we don't expect you to know it all from day one. You'll work closely with engineers, Tech Leads and Engineering Managers, with support from a Senior Principal Engineer and the Head of Engineering, to improve our platform and deliver meaningful infrastructure change.

In this role as the Platform Engineer, you will...

 * Contribute to improvements across Trainline's engineering platforms, building scalable, reliable and secure infrastructure that supports teams across the business.
 * Implement infrastructure changes with Terraform, following existing module patterns and suggesting ideas to improve quality, maintainability and automation.
 * Apply least-privilege and secure-by-default principles across our AWS accounts, helping our infrastructure meet Trainline's standards for security and operational excellence.
 * Build and improve automation, services and tooling in Node.js or Python to make delivery faster, safer and more repeatable.
 * Learn and grow with your colleagues through code reviews, pairing and shared knowledge, giving and receiving constructive feedback along the way.
 * Work with Tech Leads, Delivery Managers and cross-functional colleagues to understand priorities, plan your work and manage dependencies.
 * Raise risks, blockers and questions early, helping the team keep delivery moving at a sustainable pace.
 * Test, validate and deploy infrastructure changes through CI/CD (continuous integration and continuous delivery) pipelines, making sure they are robust, well documented and ready for production.