THE CREW
Grow Your Career, Shape the Future
Joining PRINCIPIA means working on complex, high value-added projects in demanding sectors, with the aim of satisfying our customers.
It also means joining a company on a human scale, evolving in a plural, international and constantly changing environment. It means adhering to values such as team spirit, valuing expertise, innovation and intellectual stimulation.
Ultimately, it means considering employees both as individuals and as part of a collective, encouraging the growth of personal expertise while nurturing collective intelligence.
Our People
Design & Modelling Technicians
They take part in the project kick-off review and contribute throughout the design and analysis phases: producing CAD/3D models (volumetric or surface), generating 2D drawings, creating digital simulation models, supporting the resolution of calculation phases, analyzing results, and drafting study reports.
Engineers
They are responsible for the work assigned by the Project Managers (technical methods and results, adherence to allocated time, adherence to delivery deadlines, adherence to procedures).
Project Managers
They are responsible for project production and customer satisfaction within the time and cost constraints initially defined. They must ensure that quality procedures are applied, monitor the suitability of human and material resources for the project, and anticipate all aspects of project management (risk and contingency management, customer relationship management…).
Technical Leads
They are experienced engineers who are recognized in their scientific field and have at least 10 years’ experience in their specialty. They are called upon for their skills in their area of expertise to provide support and technical expertise within the framework of a project, to monitor technological and scientific developments, to share their know-how with engineers, to participate in the development of Principia’s software and to ensure the continuity of our know-how.
Experts
They are experienced engineers, recognized in their scientific field, with at least 10 years’ experience in their specialty. They provide technical support during the project implementation phase and, in general, offer their expertise to all members of the production team. They communicate and develop know-how among engineers, participate in the development of PRINCIPIA’s software products and ensure the continuity of our expertise.
Software Development Engineers
Based on an analysis of user needs and projects, they participate in the detailed specification phase and implement the solution using the selected technologies, while meeting the defined deadlines and quality standards and ensuring testing and maintenance. They design the application and tests, produce the associated documentation, implement the solution using the selected technologies, carry out testing and manage corrective and upgrade maintenance for the applications.

>40
years of
existence

150
employees in France
and abroad

40
Average age
of employees

3%
of wages allocated
to training and seminars

88
2025 Equality Index
Women - Men

All-you-can-eat
sports for the
most hardy
Our Recruitment & Integration Process
01.
Interview with the future manager and the HR representative
02.
03.
04.
Welcome email one week before the arrival of the new employee
05.
First week of onboarding and skill enhancement, if necessary
06.
07.
08.