CLS Group (Collecte Localisation Satellites) Tech Stack

Satellite data platform for ocean monitoring, fisheries, and maritime intelligence

Environmental Services Ramonville Saint Agne 1,001–5,000 employees Partnership

CLS processes 200,000 transponders monthly and 20,000+ radar images annually via satellite observation, serving five strategic markets from sustainable fisheries to energy infrastructure. The hiring surge is data-heavy (12 of 29 open roles), with active projects focused on automating ship behavior classification, geospatial embeddings, and vector databases—indicating a shift from raw satellite ingestion toward AI-driven analysis and operational dashboards.

Tech Stack 69 technologies

Core StackGitHub Copilot Ansible Puppet Kubernetes Linux PyTorch Java Maven Spring Hibernate JavaScript GitLab CI/CD Jira Confluence Gradio Streamlit Word PowerPoint Excel Teams SharePoint Microsoft 365 GCP LXD LXC Ext JS OpenLayers Tomcat Jetty Azure+35 more

What CLS Group (Collecte Localisation Satellites) Is Building

◆Challenges

Maintaining operational reliability of internal applications
Growth support
Improving satellite data quality
Identifying non-official mooring zones
Detecting illegal maritime activities
Shared infrastructure
Lack of advanced eo analysis tools
Integrating new erp
Improving knowledge base sharing
Facilitating collaboration across subsidiaries

▲Active Projects

Validation of altimetric mission data
Automatic detection of ports and classification of ship behavior from ais and vms data
Operational audit agent
Building shared infrastructure
Industrializing deployments via ci/cd
Developing observability dashboards
Prototype of geospatial embedding exploration
Study of foundation geospatial models
Preparing vector database of embeddings
Erp integration

Hiring Activity

Accelerating30 roles · 20 in 30d

Department

Data

Engineering

Ops

Research

Sales

Finance

Legal

Marketing

Seniority

Mid

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Junior

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About CLS Group (Collecte Localisation Satellites)

CLS is a space-based Earth observation company owned by France's space agency (CNES) and investment firm CNP. The company delivers satellite monitoring and surveillance solutions across 40 global sites, with 1,200 employees headquartered in Toulouse. Core operations span five sectors: sustainable fisheries management, environmental monitoring, maritime surveillance, mobility tracking, and energy/infrastructure monitoring. The platform ingests continuous data streams from animal tags, vessel transponders (VMS/LRIT), drifting buoys, and orbital radar, then processes and delivers geospatial intelligence to government, commercial, and conservation customers. Pain points center on operational reliability, satellite data quality, and shared infrastructure scaling—all reflected in current infrastructure, CI/CD industrialization, and observability work.

HeadquartersRamonville Saint Agne

Company Size1,001–5,000 employees

Hiring MarketsFrance

Frequently Asked Questions

What does CLS Group monitor from space?

CLS operates 20+ satellite instruments daily to observe oceans, inland waters, and land surfaces. It processes 200,000 transponders monthly (vessel tracking, animal tags, buoys) and analyzes ~20,000 radar images annually for fisheries, maritime surveillance, environmental monitoring, and energy infrastructure.

What tech stack does CLS use?

CLS runs on GCP and Azure for cloud, Kubernetes + Ansible + Puppet for infrastructure, PyTorch + Java (Spring) for processing, and Streamlit + Gradio for data interfaces. Observability, CI/CD (GitLab), and geospatial tools (OpenLayers) are in active use.