Engineer – Platform

Overview

As Platform Engineer in Atlas, you help shape Trainline’s infrastructure platform to be reliable, secure and scalable. You’ll work with a cross-functional team to deploy and manage services, applying secure-by-default practices and automation. You’ll contribute to Terraform-driven changes and CI/CD pipelines, collaborating with senior engineers to delivery milestones. This role offers impact across engineering platforms and an opportunity to advance a green, high-performance tech stack.

Pay / Benefits

• private healthcare & dental insurance
• generous work from abroad policy
• EV scheme to reduce carbon emissions
• 2-for-1 share purchase plans
• extra festive time off
• family-friendly benefits

Responsibilities

• Deliver platform improvements to support reliable deployment, run and management of services
• Implement infrastructure changes using Terraform with maintainable patterns
• Apply least-privilege and secure-by-default principles in AWS
• Develop automation scripts in Node.js or Python to reduce manual effort
• Collaborate with Senior Platform Engineers, Tech Leads and Delivery Managers to align on priorities
• Test, validate and deploy changes through CI/CD pipelines with thorough checks
• Provide clear delivery updates and raise blockers early to keep the team aligned
• Grow knowledge of Trainline’s platform and engineering practices through feedback and collaboration

Key requirements

• Good experience with AWS services (ECS, Lambda, IAM, CloudFront) and cloud security best practices
• Experience delivering infrastructure changes using Terraform
• Ability to work with minimal supervision and know when to ask questions
• Experience using Node.js or Python for automation or integration tasks
• Thoughtful approach to secure engineering (least-privilege, secure-by-default)
• Experience using AI tooling to support day-to-day work
• Collaborative, agile, delivery-focused mindset
• Experience with Git-based CI/CD pipelines, multi-account AWS environments, CDN, WAF or OIDC (nice-to-have)

• collaborative team player
• agile delivery mindset
• clear communication and blockers management
• Terraform
• AWS (ECS, Lambda, IAM, CloudFront)
• Node.js

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