Applied Mechanics Engineer

NAC International, a global provider of nuclear fuel cycle management solutions and consulting services, is seeking a talented and motivated Applied Mechanics Engineer to join our team at our Peachtree Corners, Georgia headquarters. The ideal candidate is an analytical problem-solver with strong engineering fundamentals, sound technical judgment, and a passion for developing innovative solutions to complex mechanical challenges. This hybrid position offers the flexibility to work both on-site and remotely.

NAC International is a global leader in nuclear fuel cycle management and consulting services. For more than 50 years, we have been at the forefront of nuclear innovation, delivering safe, sustainable, and forward-thinking solutions in fuel cycle technology and waste management. Our reputation is built on engineering excellence, strategic collaboration, and a strong commitment to solving complex challenges for clients around the world.

Working alongside a multidisciplinary engineering team, you will perform and document advanced applied mechanics evaluations supporting the design, licensing, qualification, and operation of radioactive material (e.g. high-level radioactive waste, used and fresh nuclear fuel, etc.) transportation, storage, transfer, and handling systems. Responsibilities include nonlinear transient analyses using the explicit finite element code LS-DYNA, structural evaluations using ANSYS, development of engineering methodologies, support of licensing activities with relevant competent authorities (e.g. US Nuclear Regulatory Commission (NRC), US Department of Energy, (DOE), Canadian Nuclear Safety Commission (CNSC), etc.),

and technical interaction with clients, regulators, and multidisciplinary engineering teams. Analyses are performed in accordance with applicable design specifications, quality assurance requirements, regulatory requirements, and industry codes and standards.

You will be responsible for developing and executing applied mechanics analyses; preparing calculation packages, technical reports, and licensing documentation; performing independent technical reviews of engineering work; supporting system design optimization and qualification; and maintaining complete and accurate engineering records. The position requires application of sound engineering judgment and effective communication of technical results to internal and external stakeholders. The Applied Mechanics Engineer is expected to independently plan, execute, document, and defend complex technical work while contributing to the development of engineering methodologies and best practices.

• Develop and execute applied mechanics analyses supporting the development, licensing, and deployment of nuclear transportation, storage, transfer, and handling systems.
• Develop finite element models and analytical methodologies for structural and dynamic evaluations.
• Prepare engineering calculations, technical reports, and licensing documentation.
• Support NRC licensing activities, including SAR development and regulatory responses.
• Evaluate designs for compliance with applicable requirements, codes, and standards.
• Perform verification, validation, benchmarking, and independent technical reviews.
• Participate in design reviews and provide engineering recommendations.
• Develop analysis automation tools, workflows, and process improvements.
• Interface with customers, regulators, suppliers, and multidisciplinary project teams on technical matters.
• Provide technical leadership, mentoring, and support for junior engineers.
• Perform other engineering duties as assigned.

• Master’s degree in mechanical engineering, applied mechanics, or in a relevant…