CS Group logo
CS Group logo

CS Group

cs-soprasteria.com
cs-soprasteria.com • HQ: Le Plessis-Robinson, France • 1001-5000 employees
HQ: Le Plessis-Robinson, France • 1001-5000 employees
Actively hiring
Engineering Services
Custom Software Development
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Overview
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials

Overview

CS Group is a French engineering and software company headquartered in Le Plessis-Robinson that designs, integrates and operates critical and secure systems. It serves defence and public security, space, aeronautics, transport, energy and industry clients with surveillance and command systems, tactical communications, cybersecurity, embedded software, simulation and data intelligence, and it is now part of the Sopra Steria group. It hires software, data and systems engineers, project managers, business developers and research interns, mainly at its sites in Le Plessis-Robinson, Toulouse and Aix-en-Provence.

Tech stack

Technologies named in job postings at CS Group over the last 12 months, by layer, with the share of postings for each.
Technologies in use
68
Postings analysed
61
Stack modernity
78/100AI adopter
Languages
Python46%
C++33%
Java10%
SQL7%
Frameworks & libraries
Qt10%
PyTorch5%
Angular2%
FastAPI2%
Databases
MariaDB2%
Cloud & platforms
Linux25%
Kubernetes13%
Windows7%
AWS5%
AI & ML
Gaussian Splatting3%
LLM3%
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Full CS Group tech stack 68 technologies · by team · pay by technology · changes · similar stacks

Growth

Hiring Momentum
79/100
Scaling fast
Open positions
104
29 opened / 11 closed in 30 days
Median time-to-fill
18 days
faster than 55% of the market
ATS activity
Every ~4 hours
Today
Hiring Dynamics +100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Early Careers
26% ▲
Backend
23% ▼
Hospitality
7%
Field & Service
6% ▼
Security
5% ▼
Sales
5% ▼
Actively hiring for Early Careers (+32 in 30 days)
Activity Timeline
+5 jobs in a week Oct 2026
New location: La Garde Oct 2026
New location: Saint-Germain-en-Laye Oct 2026
New location: Grenoble Oct 2026
New location: Paris Oct 2026
Added SLI/SLO/SLA to stack Oct 2026
Added Chef to stack Oct 2026
+10 jobs in a week Oct 2026

Offices

Where the company hires and what each office is for
Cities
10
Hiring now
10
Countries
1
Busiest office
Le Plessis-Robinson
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Headquarters Builds here Office with open vacancies Tap a pin for the office
Le Plessis-Robinson France
HQ
Siège social en France
46 open roles 54 posted in 90 days 26% engineering 1000-5000 est. staff
hires for Early Careers, Backend, Field & Service
22, avenue Galilée, 92350 Le Plessis Robinson
seen since Aug 2026 company site, job postings
Toulouse France
Regional office
29 open roles 33 posted in 90 days 34% engineering 500-1000 est. staff
hires for Early Careers, Backend, DevOps
seen since Aug 2026 job postings
Aix-en-Provence France
Regional office
14 open roles 17 posted in 90 days 64% engineering 200-500 est. staff
hires for Backend, Management, Games
seen since Aug 2026 job postings
Lyon France
Regional office
6 open roles 6 posted in 90 days 50% engineering 50-200 est. staff
hires for Backend, Early Careers, Data Science
seen since Sep 2026 job postings
Grenoble France
Regional office
3 open roles 3 posted in 90 days 67% engineering 50-200 est. staff
hires for DevOps, Hospitality
seen since Aug 2026 job postings
La Garde France
2 open roles 2 posted in 90 days 100% engineering 10-50 est. staff
hires for Backend
seen since Sep 2026 job postings
Mérignac France
1 open roles 3 posted in 90 days 100% engineering 50-200 est. staff
hires for Backend
seen since Sep 2026 job postings
Saint-Germain-en-Laye France
1 open roles 2 posted in 90 days 10-50 est. staff
hires for Administrative
seen since Oct 2026 job postings
Gramat France
1 open roles 1 posted in 90 days 10-50 est. staff
hires for Field & Service
seen since Sep 2026 job postings
Paris France
1 open roles 1 posted in 90 days 10-50 est. staff
hires for Administrative
seen since Oct 2026 job postings
Earlier presence
Pau, France 1 open roles · last posting Sep 2026
Saint-Paul-lès-Durance, France 1 open roles · last posting Aug 2026

Jobs

≈ $43k – $73k per year (Estimated) • In office • Full-Time • 5+ years exp • Le Plessis-Robinson
Java
CI/CD
Windows
Apply
≈ $44k – $74k per year (Estimated) • In office • Full-Time • Grenoble
MariaDB
AI/ML
InfiniBand
DevOps
Ansible
Red Hat
Rancher
Prometheus
SLURM
Kubernetes
Ubuntu
Grafana
SLI/SLO/SLA
HPC
Linux
Cybersecurity
LDAP
Management
ITIL
Apply
≈ $26k – $59k per year (Estimated) • In office • Full-Time • Grenoble
Python
Bash
Ansible
Prometheus
Docker
Kubernetes
Grafana
Linux
Cybersecurity
LDAP
Management
ITIL
Apply
≈ $47k – $80k per year (Estimated) • Hybrid • Full-Time • 5+ years exp • Toulouse
Python
Kubernetes
Apply
≈ $45k – $76k per year (Estimated) • Hybrid • Full-Time • Toulouse
Terraform
Ansible
CI/CD
Docker
Kubernetes
GitLab
Apply
≈ $40k – $60k per year (Estimated) • In office • Full-Time • 3+ years exp • Toulouse
Java
Spring Boot
Apply
≈ $43k – $77k per year (Estimated) • In office • Full-Time • Le Plessis-Robinson
C++
Qt
DevOps
Ubuntu
Linux
Management
Agile
Apply
≈ $42k – $63k per year (Estimated) • In office • Full-Time • 3+ years exp • Le Plessis-Robinson
C++
Apply
≈ $46k – $78k per year (Estimated) • In office • Full-Time • 5+ years exp • Le Plessis-Robinson
C++
Apply
≈ $45k – $76k per year (Estimated) • Hybrid • Full-Time • 5+ years exp • Le Plessis-Robinson
Python
OpenShift
Azure
CI/CD
AWS
Apply
≈ $44k – $78k per year (Estimated) • In office • Full-Time • Aix-en-Provence
C++
Bash
Git
Linux
Apply
≈ $54k – $90k per year (Estimated) • Hybrid • Full-Time • 5+ years exp • Le Plessis-Robinson
Apply
All 47 jobs at CS Group salaries, cities, levels and how long each has been open