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Urssaf Caisse nationale Tech Stack

French social security contribution collector modernizing core infrastructure

Government Administration Montreuil, Île-de-France 1,001–5,000 employees Founded 1960 Government Agency

Urssaf is a €16,000-person government agency managing France's social contribution system—collecting payroll deductions and routing them to benefit programs nationwide. The tech stack (Cloudera, Spark, Airflow, Kubernetes, dbt on AWS) reveals a data-heavy operation, and active hiring in engineering and data signals a sustained modernization effort. The project list exposes two concurrent infrastructure pressures: replacing VMware while maintaining continuity across 20,000 VMs, and automating a legacy data platform migration to OpenShift.

Tech Stack 39 technologies

Core StackOpenShift Apache Spark Iceberg Apache Airflow AWS Kubernetes Helm ArgoCD Python Active Directory ServiceNow PySpark dbt Hadoop Trino Jenkins SonarQube Linux Cloudera Dremio Windows 11 Microsoft 365 GLPI Teams Polycom SQL Git OpenStack Qualys Tenable+8 more

AdoptingOpenShift Kubernetes OpenStack

ReplacingVMware

What Urssaf Caisse nationale Is Building

◆Challenges

Building sovereign virtualization foundation
Continuity of 20k vms
Replacing vmware
Implementing new national measures
Ensure software compliance
Infrastructure optimization
Spark tuning
Data platform automation
Securisation juridique du recouvrement
Service continuity across 12 sites

▲Active Projects

Strategic infrastructure transformation
Virtualization alternative poc
Migration scenario design
Implementation of new national measures
Poc & benchmarks
Data platform automation
Technical demonstrator for new component
Legal security
Data fabrique modernization on openshift
Industrialize sam activity

Hiring Activity

Accelerating20 roles · 10 in 30d

Department

Engineering

4

Data

2

Finance

2

Legal

2

Ops

2

Security

2

Audit

1

Communication

1

Seniority

Senior

11

Mid

4

Manager

3

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About Urssaf Caisse nationale

Urssaf collects social contributions from employers, self-employed workers, and employees across France, then distributes funds to Social Security and related benefit agencies covering healthcare, hospital funding, and public transit. The organization operates across 12 regional sites and serves as a compliance and advisory partner for French employers. Founded in 1960, Urssaf anchors France's social solidarity model through contribution collection, fund management, and employer support. Current operations span 1,001–5,000 staff with technical functions concentrated in data and infrastructure.

HeadquartersMontreuil, Île-de-France

Company Size1,001–5,000 employees

Founded1960

Hiring MarketsFrance

Frequently Asked Questions

What tech stack does Urssaf use?

Urssaf runs Cloudera, Apache Spark, Airflow, dbt, Kubernetes, OpenShift, and AWS, alongside ServiceNow, Active Directory, and Microsoft 365. The stack indicates data-pipeline-first architecture with cloud and open-source infrastructure layers.

What is Urssaf's current infrastructure priority?

Replacing VMware while maintaining 20,000 VMs across 12 sites—addressed through virtualization alternative POCs and strategic infrastructure transformation projects leveraging OpenShift and Kubernetes.