Nuclear Engineer

A leader in Engineering and IT Services, present in more than 30 countries with nearly 60,000 employees, the ALTEN Group supports its clients’ development strategies in the fields of innovation, R&D, and information technology systems 

What will you be doing? 

As a Nuclear Engineer, you will join a team to support our activities within the Nuclear Sector.

Your main responsibilities will be: 

• Support design activities for Reactor and Core Systems, progressing from Final Concept Definition (FCD) through to the early stages of Detailed Design.
• Take ownership of cross-functional tasks that contribute to the continuous improvement of system design processes and procedures across the organisation.
• Engage regularly with key design stakeholders, ensuring effective communication and adherence to governance processes, including gated design reviews, definition reviews, and decision reviews.
• Develop comprehensive design documentation, including System Design Descriptions, Piping & Instrumentation Diagrams (P&ID), Functional Bill of Materials, Requirement Definitions, Decision Records, and other essential design materials.

• Bachelor’s or master’s degree in mechanical engineering, systems engineering, chemical engineering or a field related to Nuclear systems.
• Excellent stakeholder management and communication skills.
• Proficient in delivering presentations and producing high-quality reports.
• Strong understanding of systems engineering principles and requirements management.
• Knowledge of Pressurised Water Reactor (PWR) operating principles.
• Preferably some familiarity with reactor core physics
• Fluency in French and english mandatory

Our Three Pillars of Commitment to Sustainable Development

ALTEN’s approach to sustainability and corporate social responsibility is built on three fundamental pillars:

People

We celebrate the richness of diversity among our employees, representing over 100 nationalities. We are committed to fostering an inclusive environment where everyone can thrive and make meaningful contributions.

We support skills development and actively guide our talents in their personal and professional growth.

Environment

Our mission is to minimize our environmental impact while promoting sustainable growth. We are committed to achieving carbon neutrality by 2050 — a goal that drives our operations and shapes our strategic initiatives.

Sustainable Innovation

At ALTEN, we view the challenges of sustainable development as opportunities for research and innovation. With 31% of our internal R&D dedicated to sustainable innovation, we are determined to transform these challenges into value-creating, progress-driven solutions.