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Jems Group Tech Stack

Big Data and analytics services for enterprise data transformation

IT Services and IT Consulting Levallois-Perret 501–1,000 employees Founded 2002 Privately Held

Jems Group is a French Big Data services firm with 900 employees and €93M in revenue, operating across 8 countries. The stack is heavy on modern analytics and orchestration tools (Dataiku, Power BI, Kafka, Databricks, Delta Lake) layered over traditional data infrastructure (SQL, Java, Scala, Hadoop), suggesting a portfolio of clients at various stages of data modernization. Active hiring is concentrated in data roles (30 open positions), signaling capacity expansion for larger enterprise engagements; the absence of stack adoption or replacement signals operational stability rather than active platform shifts.

Tech Stack 127 technologies

Core StackPython AWS SAS Power BI Java Scala Kafka RabbitMQ Talend Matillion Elasticsearch Delta Lake JUnit SonarQube Jenkins Databricks Docker Dataiku SQL GCP Azure DAX Logstash Kibana Solr HDFS Git Hortonworks Cloudera DataStax+97 more

What Jems Group Is Building

◆Challenges

Reducing technical debt
Reducing ecological impact
Optimizing costs
Migrating legacy sas to dataiku
Meeting project deadlines
Automation challenges
Scalability challenges
Data flow optimization
Complex data transformations
Managing large volumes of paper archives

▲Active Projects

Data acquisition to exploitation solution
Data platform deployment for clients
Power bi dashboard development
Automating civil engineering study deliverables
Projet nucléaire d’envergure nationale
Test automation
Data pipeline optimization
Deployment automation with tests
Large-scale document management project
Ci/cd pipeline implementation

Hiring Activity

Accelerating50 roles · 25 in 30d

Department

Data

30

Engineering

11

Sales

3

Support

3

Ops

1

Product

1

Seniority

Senior

25

Mid

19

Lead

3

VP

2

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About Jems Group

Jems Group creates, manages, and operates data platforms for large enterprises across banking, insurance, energy, e-commerce, automotive, luxury goods, transport, and agritech. The company runs a services model where it designs and builds data-driven use cases and AI applications on top of customer data infrastructure. They operate in 13 French cities and have presence in Switzerland, Belgium, Romania, Spain, Morocco, and Tunisia. Current work spans data acquisition-to-exploitation pipelines, analytics dashboard development, legacy migration from SAS to Dataiku, and automation of engineering workflows. Pain points include technical debt reduction, cost optimization, and handling large-scale data volumes and legacy document archives.

HeadquartersLevallois-Perret

Company Size501–1,000 employees

Founded2002

Hiring MarketsCanada, France, Tunisia, Belgium

Frequently Asked Questions

What tech stack does Jems Group use?

Dataiku, SQL, Python, AWS, GCP, Azure, SAS, Power BI, Kafka, Talend, Matillion, Databricks, Delta Lake, Elasticsearch, Cloudera, and Hortonworks. Stack spans modern cloud analytics platforms and traditional Hadoop-era infrastructure.

Where is Jems Group headquartered?

Levallois-Perret, France. The company operates in 13 French cities and has regional offices in Switzerland, Belgium, Romania, Spain, Morocco, and Tunisia.