CS GROUP Tech Stack

Mission-critical systems integrator for defense, space, and infrastructure

IT Services and IT Consulting Le Plessis Robinson 5,001–10,000 employees Public Company

CS GROUP designs and deploys safety-critical systems for European defense, space, and critical infrastructure operators. The tech stack—C++, C#, Jenkins, Git, Visual Studio, SQL Server, Azure—reflects a traditional embedded-systems integrator, but adoption of MinIO and Oracle Linux alongside active hiring in embedded software leadership and security (39 open roles) suggests the company is modernizing infrastructure for cloud-native and containerized deployments. Active projects span satellite navigation (EGNOS), maritime surveillance, anti-drone systems, and autonomous vehicles—all domains where certification and airworthiness standards are existential constraints.

Tech Stack 200 technologies

Core StackJenkins C++ C# Visual Studio GitLab Power BI Java ASP.NET SQL Server Windows Server PostgreSQL TestLink Artifactory Subversion Git Redmine Excel Qt GCC Clang Windows Unix Unreal Engine Unreal Engine 5 Inkscape Microsoft Office AMDEC is an acronym for "Failure Mode and Effects Analysis" (FMEA) methodology, but "AMDEC" itself is not a canonical technology product name—it's a methodology/process name used in quality management. SKIP Azure WPF IBM DOORS+170 more

AdoptingInkscape MinIO Oracle Linux ENOVIA

What CS GROUP Is Building

◆Challenges

Meeting safety certification requirements
Ensuring reliability and security of communication systems
Ensuring safety-critical embedded systems
Compliance with iso 27001
Improving operational efficiency of defense systems
Protecting critical infrastructure
Modernizing simulation tools
Maintaining the largest private hpc cluster
Integrating cybersecurity into avionics lifecycle
Meeting airworthiness security standards

▲Active Projects

Egnos
Surveillance maritime
Lutte anti-drones
Liaisons de données tactiques
Inscape
Space surveillance system
Electric and autonomous vehicle development
Virtualgeo
Crimson
C2 boreades integration

Hiring Activity

Steady310 roles · 110 in 30d

Department

Engineering

193

Security

Data

Ops

Manufacturing

Product

Sales

Support

Seniority

Mid

131

Senior

107

Intern

Manager

Director

Junior

Lead

Notable leadership hires: IVVQ System Team Lead, Project Director, Technical Lead Communications, Director Navigation Satellites, Embedded Software Lead

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About CS GROUP

CS GROUP is a French systems integrator and engineering services company serving government, defense, space, and critical-infrastructure clients. The 5,000+ person organization specializes in designing, building, and maintaining safety-critical systems that operate under strict regulatory oversight (ISO 27001, airworthiness, safety certification). The project portfolio includes satellite systems, tactical communications, maritime and space surveillance, autonomous vehicle platforms, and command-and-control integration. Engineering dominates the hiring mix (193 roles), with concentrated demand in embedded software, cybersecurity integration, and compliance—reflecting the company's core challenge of embedding security and reliability into systems with zero tolerance for failure.

HeadquartersLe Plessis Robinson

Company Size5,001–10,000 employees

Hiring MarketsFrance, United States, Canada, Germany, Italy, Romania

Frequently Asked Questions

What is CS GROUP's tech stack?

Core languages: C++, C#, Java. Development: Visual Studio, Git, Jenkins, GitLab, Azure. Data: SQL Server, PostgreSQL. Defense/embedded: Qt, GCC, Clang, WPF. Recently adopting MinIO, Oracle Linux, and ENOVIA for modernized infrastructure.