CASTEL France Tech Stack

Industrial intercom and access control systems for secure infrastructure

Telecommunications Neuillé, Maine-et-Loire 51–200 employees Founded 1970 Privately Held

CASTEL manufactures embedded intercom and access control platforms for industrial, medical, banking, and critical infrastructure environments. The stack — C/C++, Linux, Yocto, SIP/VoIP, ARM, VHDL — reflects a hardware-forward company building real-time systems, and active hiring in embedded engineering signals scaling of product development. Projects around AI integration, Linux BSP work, and massive data processing suggest the company is moving beyond passive access control toward intelligent security solutions.

Tech Stack 25 technologies

Core StackPython Linux Jenkins JavaScript C++ WordPress Confluence C/C++ VoIP SIP Asterisk Yocto HTML CSS Word Excel Orcad VHDL C Bash ARM Debian Adobe Microsoft Office Adobe FrameMaker

What CASTEL France Is Building

◆Challenges

Activity growth
Cost optimization of infrastructure
Component obsolescence
Eco-design innovation
Handling massive data volumes
Integrating ai into security solutions
Scaling operations to meet growing demand
Simplify technical content management
New documentation management organization
Modernizing legacy architectures

▲Active Projects

Embedded target product development
New product development based on c/c++ and web technologies
Development of professional intercom products
Innovation solutions for intercom products
Linux bsp development
Yocto recipe development
Device tree implementation
Massive data processing solution
Ai and machine learning algorithms
Technical architecture for ai algorithms

Hiring Activity

Accelerating15 roles · 10 in 30d

Department

Engineering

Product

Sales

Support

Data

Marketing

Research

Seniority

Senior

Mid

Junior

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About CASTEL France

CASTEL designs and manufactures intercom and access control systems for demanding environments: industrial facilities, hospitals, banks, transport hubs, prisons, and defense installations. Founded in 1970, the company has built 50+ years of expertise in voice, image, and data communication across IP/SIP, digital, and analog protocols. The product range spans professional intercom systems and security gateways deployed in environments where reliability and compliance are non-negotiable. Based in Neuillé, Maine-et-Loire, France, the company operates as a privately held organization with 51–200 employees, currently expanding engineering and product capacity.

HeadquartersNeuillé, Maine-et-Loire

Company Size51–200 employees

Founded1970

Hiring MarketsFrance

Frequently Asked Questions

What tech stack does CASTEL use?

CASTEL's core stack includes C/C++, Linux, ARM, Yocto, SIP/VoIP, Asterisk, VHDL, Jenkins, and Python. The mix reflects embedded systems work (ARM, Yocto, device tree), real-time communication (SIP, VoIP, Asterisk), and modern tooling (Linux, Python, Jenkins for CI/CD).

What is CASTEL working on?

Active projects include embedded product development, Linux BSP and Yocto recipe work, device tree implementation, professional intercom innovation, AI/ML algorithm development, and massive data processing solutions — indicating a shift toward intelligent, data-driven security systems.