As a leader in Engineering and IT Services, ALTEN comprises nearly 60,000 employees, 88% of whom are engineers. Operating in more than 30 countries, the Group supports its clients' development strategies in the fields of innovation, R&D, and technological information systems. ALTEN is involved in major projects, including : Maintenance and modernization of the operational nuclear fleet Spare parts supply and stock management for the French nuclear fleet Support for nuclear submarine program management Design of wind turbines Digitalization of maintenance for installations Job Description As a Civil Engineering Engineer specializing in the nuclear sector, you will be responsible for designing and constructing structures housing nuclear facilities. Your responsibilities will include: Structural Design: Develop reinforced concrete structures and steel frameworks to ensure stability and durability. Calculation Reports : Perform and verify resistance and sizing calculations. Project Coordination: Collaborate with suppliers and stakeholders to ensure materials and construction meet standards. Technical Solutions: Modify designs and propose technical and economic solutions tailored to client needs. Profile You hold a degree from an engineering school or a Master’s degree (Bac 5) and have prior experience in a similar role, ideally in an agile environment. You demonstrate a strong interest in the technical aspects of this field. Key Skills Proficiency in professional English Strong command of calculation and sizing tools (Revit, TEKLA) Knowledge of Eurocodes and nuclear-specific regulations (ETC-C, RCC-G, RCC-CW) Familiarity with the nuclear environment and best practices for safety-critical activities (installations, systems, equipment, operations, etc.) If this describes you, don’t wait—APPLY and join the ALTEN adventure Why join ALTEN ? ALTEN offers a dynamic engineering culture and passion for technology, high-value-added projects, mobility opportunities, and personalized career development within an innovative and stimulating environment: Growth opportunities : ALTEN boots your career, enabling rapid growth aligned with your aspirations. With dedicated support, access to training, and certification opportunities, you can enhance your expertise and progress across our four career paths: Specialists, Project Management, Business Management, and Support Functions. Sustainable Innovation : Participate in technological innovation projects within a creative, innovative, and solution-driven environment. ALTEN sees sustainability challenges as opportunities to drive research and innovation. With 31% of our internal R&D focused on sustainable innovation, we aim to turn challenges into value-creating solutions that propel progress. Environmental Responsibility : ALTEN is committed to minimizing its environmental impact while promoting sustainable growth. Our objective is to achieve net-zero emissions by 2050, a goal that guides our operations and strategic initiatives.