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Senior Engineer - Platform

London💼 Full-time🗓 2026-06-26 → 2026-09-25

Core

Build scalable, reliable, and secure infrastructure platforms and tooling to support traffic deployment and management across the Trainline ecosystem.

Role type

Senior Platform Engineer (Infrastructure & Tooling)

Builds

Next-generation infrastructure platform, automation scripts, and tooling for deploying and managing traffic.

Domain

Travel technology, Cloud Infrastructure, Platform Engineering

Deliverable

production ML models | infrastructure

Required skills

AWS services (ECS, Lambda, IAM, CloudFront), Terraform, Node.js, Python, CI/CD pipelines, secure cloud design, multi-account/multi-region AWS management

Preferred skills

AI tooling for engineering, enterprise-scale AWS environments, WAF, Git-based CI/CD

Responsibilities

Deliver complex improvements to engineering platforms, implement infrastructure changes using Terraform, apply least-privilege security principles, build automation scripts, support mid-level engineers, collaborate on delivery plans, validate and deploy changes via CI/CD.

Seniority

Senior, hands-on IC with mentorship responsibilities

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