Job Title: Senior Mechanical Design Engineer Type: Contract Compensation: $63 - $80 hourly Contractor Work Model: Remote System One (https://www.linkedin.com/preload/#) is actively seeking a Sr. Mechanical Design Engineer to support the development of advanced nuclear reactor technology. This role plays a pivotal part in designing key components of the Natrium Generation IV Reactor, including core components, reactor structures, and critical systems within the Nuclear Island. You’ll be part of a cutting-edge, high-performing team of engineers and scientists revolutionizing the future of clean energy. Key Responsibilities: Design equipment and reactor components based on input from engineering and project teams Develop documentation for component testing and analysis Conduct mechanical analyses using FEA tools like ANSYS Lead design reviews and guide junior engineers and subcontractors Apply Design for Manufacturability (DFM) and Design for Assembly (DFA) principles Collaborate across disciplines to deliver innovative and compliant design solutions Prepare and present technical data and deliverables for internal and external stakeholders Qualifications: B.S. in Mechanical Engineering or related field (advanced degrees a plus) 5+ years of mechanical equipment/component design experience Experience with SolidWorks and 3D CAD design tools Strong background in FEA, stress analysis, and mechanical calculations (preferably with ANSYS) Familiarity with ASME BPVC Section III or VIII, and seismic analysis standards (ASCE 4/7/43) is highly desirable Proven experience in writing test plans and technical specifications Strong communication, leadership, and mentorship skills Preferred Experience: Design of core assemblies (fuel/control) in the nuclear industry Familiarity with ASME BPVC Section III Division 5 Experience with Flow-Induced Vibration (FIV) or Comprehensive Vibration Assessment Programs (CVAP) Background in experimental design and product testing in highly regulated environments System One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. Ref: #161-Managed Staffing Charlotte System One, and its subsidiaries including Joulé, ALTA IT Services, CM Access, TPGS, and MOUNTAIN, LTD., are leaders in delivering workforce solutions and integrated services across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible full-time employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.