T

ticket i/O GmbH Tech Stack

Event ticketing platform for organizers across Europe

IT Services and IT Consulting Köln, Nordrhein-Westfalen 51–200 employees Founded 2014 Public Company

ticket.io operates a full-stack ticketing solution for event organizers, built on TypeScript, Node.js, React, and AWS. The tech stack reveals a modern, API-first backend (Nest.js + Node) paired with mobile-native clients (iOS, Swift; Android, Kotlin), suggesting a push toward organizer and attendee mobile adoption. Active engineering recruitment across mid-level and lead roles, combined with projects around scalability monitoring and seasonal capacity planning, indicates the platform is scaling to handle traffic spikes tied to event seasons — a known pain point in ticketing systems.

Tech Stack 27 technologies

Core StackTypeScript Node.js Nest.js React AWS PHP Terraform JavaScript Playwright Sentry Postman Swift Kotlin Git macOS Symfony SQL Scrum iOS Android XCTest Appium BDD Gherkin Crashlytics OAuth JWT

What ticket i/O GmbH Is Building

◆Challenges

Seasonal hardware logistics
Optimizing internal processes
Optimizing recruiting processes
Streamlining onboarding processes
Legacy code maintenance
Scalability monitoring system
Continuous feature development
High-volume event support
Hardware fleet maintenance
Scalability of ticketing platform

▲Active Projects

Azubi-projekt
Online ticketing configuration
New feature development
Scalability monitoring system
Seasonal scalability projects
Hardticket management
Ticket generation and validation
Online ticketing software development
Seasonal ticket management
Hardware logistics optimization

Hiring Activity

Accelerating20 roles · 10 in 30d

Department

Engineering

8

Marketing

2

Ops

2

Product

2

Sales

2

HR

1

Support

1

Seniority

Mid

8

Intern

3

Senior

3

Lead

2

Director

1

Junior

1

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About ticket i/O GmbH

ticket.io is a European ticketing platform founded in 2014 and based in Cologne, Germany, serving event organizers across industries. The product covers the full ticketing lifecycle: online ticket sales, guest list management, entrance management, and logistics coordination for both digital and physical tickets. The company operates at 51–200 employees and is actively hiring across engineering, product, and marketing, with a particular focus on expanding technical capacity. Projects span online ticketing configuration, hardware logistics optimization, and seasonal scalability — reflecting the operational complexity of managing high-volume, time-concentrated event cycles.

HeadquartersKöln, Nordrhein-Westfalen

Company Size51–200 employees

Founded2014

Hiring MarketsGermany, Austria

Frequently Asked Questions

What tech stack does ticket.io use?

TypeScript, Node.js, Nest.js, React, AWS, Terraform, SQL. Mobile: iOS (Swift) and Android (Kotlin). Testing: Playwright, Appium, XCTest. Auth: OAuth, JWT.