At Amentum, we''re challenging today to reinvent tomorrow by solving the world''s most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery, and innovative manufacturing, turning abstract ideas into realities that transform the world for good. With $13 billion in revenue and a talent force of approximately 52,000, Amentum provides a full spectrum of professional services including consulting, technical, scientific and project delivery for the government and private sector. Work-life balance and flexibility is a key focus area for Amentum. We are happy to discuss hybrid, part-time and flexible working hours, patterns, and locations to suit you and our business. About the Opportunity The Client-Side Construction Manager represents the Owner and is responsible for overseeing, monitoring, and assuring all construction activities performed by the EPC contractor and subcontractors. This role ensures that the project is executed in accordance with the Client''s requirements, nuclear safety expectations, Polish regulatory obligations, and international best practices. The role would head up a significant Client Team would serve as the Client''s primary on site representative, coordinating with engineering, licensing, procurement, and executive leadership. You would be accountable for: Owner''s Oversight - Monitoring of EPC contractor performance, ensuring adherence to contract obligations, ..... full job details .....