Senior Civil Engineer

About Assystem

Assystem is an international company with one mission: accelerate the energy transition around the world. With 7,500 employees in 12 countries, we deliver engineering, project management, and digital services to optimise complex infrastructure projects, especially in nuclear and low‑carbon energy sectors.

Your Mission

As a Civil Engineer you will be part of a multi‑disciplinary engineering team supporting operations and future programs at client sites. You will work alongside Mechanical, Building Services, and Electrical Engineers to author, develop, assess, and maintain Engineering Design Substantiation, ensuring Design Intent, Critical Safety Functions, and Safety and Operational Requirements are met.

Key Responsibilities

• Develop, assess, and manage Design Substantiation documents.
• Lead the control of design changes and concessions.
• Present design substantiations to safety committees.
• Produc...