Our Vacancy# Principal Project Manager* Defence* Permanent / Project Management* Newcastle* United Kingdom* 13/05/26* On site* ShareToday, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.## Job DescriptionPrincipal Project Manager Location: Derby or NewcastleThis is more than project management. It’s about influencing strategic outcomes, shaping capability across the business, and ensuring we deliver mission-critical projects with precision, accountability, and innovation.You will play a pivotal role in managing and evolving a multi-project portfolio, supporting blue-c...