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Trainline Tech Stack

Europe's rail and coach booking platform connecting 270+ carriers across 45 countries

Technology, Information and Internet London 1,001–5,000 employees Founded 1997 Public Company

Trainline processes £5.9 billion in annual ticket sales across a .NET + C# backend (DynamoDB, PostgreSQL, AWS) paired with native iOS/Android apps (Swift, Objective-C). The stack reflects a mature travel-commerce operation with strong observability (New Relic, ELK) and data pipelines (Airflow, Spark, BigQuery, dbt). Hiring is accelerating across engineering, finance, and data — with active projects spanning cash forecasting, yield management, and a travel-assistant data platform — signaling infrastructure investment ahead of market expansion and margin optimization.

Tech Stack 47 technologies

Core StackC# .NET DynamoDB PostgreSQL AWS Docker Terraform GitHub Actions New Relic Swift SwiftUI Elasticsearch dbt Apache Spark Python Apache Airflow BigQuery Tableau Power BI Salesforce Elasticsearch, Logstash, Kibana UIKit Objective-C Tuist SQL iOS Android R macOS Windows+17 more

What Trainline Is Building

◆Challenges

Simplifying balance sheet processes
Improving marketing roi
Operational incident management
Expanding into new markets
Reducing tech debt
Automating carrier liability reconciliations
Removing blockers and waste
Yield optimisation
Ad tech performance
Scalable privacy-first advertising platform

▲Active Projects

Cash forecasting transformation
Driving incremental net ticket sales
Travel assistant data platform
Balance sheet process simplification
Journey search functionality
Ecommerce platform
Trainline mobile app
Programmatic yield management
Real-time timetable information
Exploring new leisure travel markets

Hiring Activity

Accelerating75 roles · 35 in 30d

Department

Engineering

15

Finance

15

Data

8

Marketing

7

Product

7

Sales

5

Ops

3

Security

3

Seniority

Senior

27

Mid

21

Manager

11

Lead

6

Junior

5

Director

1

Notable leadership hires: Head of Product, Product Head

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About Trainline

Trainline is a public travel-distribution platform serving 125+ million monthly visitors across Europe. The company aggregates rail and coach inventory from over 270 carriers in 45 countries, offering price comparison, real-time journey information, and ticketing through web, mobile, and B2B partner channels. The product surface includes booking engines, ecommerce infrastructure, mobile apps, and yield-management systems. Beyond transactional ticket sales, the company frames its mission around modal shift — using technology and data to encourage greener travel choices. Current operational focus spans carrier reconciliation automation, balance-sheet simplification, and geographic expansion into new leisure markets.

HeadquartersLondon

Company Size1,001–5,000 employees

Founded1997

Hiring MarketsUnited Kingdom, France, Spain

Frequently Asked Questions

What tech stack does Trainline use?

Backend: C#, .NET, DynamoDB, PostgreSQL, AWS, Docker, Terraform. Mobile: Swift, SwiftUI, Objective-C, UIKit, iOS, Android. Data: Airflow, Spark, BigQuery, dbt, Elasticsearch, Python. Observability: New Relic, Kibana, Logstash. Analytics: Tableau, Power BI. CRM: Salesforce.