RATP Smart Systems Tech Stack

Passenger information and e-ticketing systems for transit operators

Embedded Software Products Noisy le Grand Cedex 201–500 employees Founded 2010 Privately Held

RATP Smart Systems (operating as Ixxi) builds passenger information and ticketing infrastructure for public transit operators. The stack reveals a mature data-and-backend-heavy engineering org: Java/Spring/PostgreSQL for core services, Kafka for real-time data movement, and Spark/Scala for analytics pipelines. Active projects center on big-data infrastructure (pipeline implementation, data marts, BI reporting) alongside a stated pain point around legacy-system maintenance—typical of companies managing production systems across multiple transit networks with fragmented operational environments.

Tech Stack 36 technologies

Core StackJava React TypeScript PostgreSQL MongoDB Datadog GitLab CI/CD Docker AWS Kafka Slack Jira Confluence Miro GitLab C++ SonarQube Spring Redis Scala Python Apache Spark Spring Boot Git Teams C Conan Artifactory Bash SQL+5 more

What RATP Smart Systems Is Building

◆Challenges

Optimizing urban transport networks
Maintaining legacy applications
Complex application environments
Digitalizing traveler experience
Lack of coherent bi indicators
Data-driven decision-making

▲Active Projects

Public procurement compliance
Big data pipeline implementation
Business dashboards development
Big data application maintenance
Bi reporting and dashboard development
Data mart creation
Linkedin account animation
Internal communication rollout
Event support

Hiring Activity

Accelerating8 roles · 4 in 30d

Department

Engineering

Data

Legal

Communication

Seniority

Senior

Mid

Lead

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About RATP Smart Systems

A subsidiary of the RATP Group since 2010, Ixxi operates passenger information systems and e-ticketing solutions for transit agencies and mobility operators. The product surface spans two areas: traveller information services (dynamic boards, mobile apps, accessibility solutions for visually impaired users) and e-ticketing infrastructure (NFC/smartcard loading, ATM and web-portal distribution). The company serves regional and national transit operators; recent deployments include Montreal transit and RATP's own network. Based in Noisy le Grand, France, the team spans 201–500 employees with engineering concentration and growing data capabilities.

HeadquartersNoisy le Grand Cedex

Company Size201–500 employees

Founded2010

Hiring MarketsFrance

Frequently Asked Questions

What tech stack does RATP Smart Systems use?

Core stack: Java, Spring Boot, PostgreSQL, MongoDB, Kafka, AWS, Docker, GitLab CI/CD. Analytics tier: Spark, Scala, Python. Monitoring: Datadog. Development: Git, Jira, Confluence, SonarQube.

What is RATP Smart Systems working on?

Active projects include big-data pipeline implementation, data-mart creation, BI dashboards, public-procurement compliance, and business-intelligence reporting—alongside legacy-application maintenance and traveler-experience digitalization.