Associate Criticality Safety Engineer

## Company Description **Join us and make YOUR mark on the World!** Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and promote global stability. Our mission spans four critical national security areas nuclear deterrence, threat preparedness, energy security, and multi-domain defense empowering teams to take on the toughest challenges of today and tomorrow. With a culture built on innovation and operational excellence, LLNL is a place where your expertise can make a real impact. ## Job Description We have an opening for an **Associate Criticality Safety Engineer** within the Environment, Safety, and Health (ES&H) Directorate. You will contribute to the design, development, and testing of nuclear equipment and systems for Lawrence Livermore National Laboratory (LLNL) operations with fissionable materials. You will also contribute to projects and task assigned to LLNL supporting the Department of Energy (DOE) Nuclear Criticality Safety Program (NCSP). This position is in the Nuclear Criticality Safety Division (NCSD). This position will be filled at either level based on knowledge and related experience as assessed by the hiring team. Additional job responsibilities (outlined below) will be assigned if hired at the higher level. *This position requires full-time on-site presence due to the nature of the work.* **You will** - Assist with criticality safety evaluations in conformance with DOE-STD-3007 and LLNL administrative procedures and support the review of new or proposed changes to existing equipment or operating procedures. - Perform walk-through inspections and assist with basic annual reviews of operations and work authorization/work control documents and support the review of safety procedures and documents for consistency with criticality safety evaluations and adequate implementation of criticality safety controls. - Perform technical/scientific assignments of limited complexity using established methods and procedures under general direction, and provide technical support to engineers, scientists, and facility staff as a member of a team in scientific research and development projects and/or ongoing operations. - Gather, organize, and assist in analyzing data and information in support of the work activities, and help prepare documents, calculations, recommendations, corrective action documentation, designs, or related technical work products. - Contribute to solutions for routine or limited-complexity problems using standard techniques and established practices, supporting project and organizational goals. - Travel to the Nevada National Security Sites as needed. - Conduct Fundamentals of Criticality Safety training courses. - Perform other duties as assigned. **Additional job responsibilities, at the SES.2 level** - Serve as the principal investigator or technical lead for critical or sub-critical benchmark experiments. - Present and disseminate research results at scientific conferences and in peer-reviewed publications, in both open and classified environments, internal and external to LLNL. - Positively represent the program and laboratory demonstrating advanced verbal and written skills. Responsibilities may also include interacting with external stakeholders, both at NNSA and across the broader interagency, via offsite assignments. ## Qualifications - Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship. - Bachelor’s Degree in Nuclear Engineering, Physics, or closely related scientific discipline (e.g., mechanical/systems engineering, nuclear physics, particle physics, radiochemistry) or equivalent combination of education and prior relevant experience. - Fundamental knowledge of and some academic, internship, research, or work experience in a nuclear facility, nuclear reactor, chemical, high hazard, radiological operation, or similarly regulated technical…