We have multiple openings for Group Leaders within the National Security Engineering Division (NSED) to lead the  Energy Manipulation Technology Group , the  Plasma Engineering Group, and the Accelerator Operations Group.  Each group is a multidisciplinary team of engineers and scientists responsible for a diverse portfolio spanning conventional, solid-state, and explosive pulsed power, applied electromagnetics research and development, and accelerator / plasma-based systems. These Group Leaders will provide technical leadership and line management for teams performing theoretical analysis, modeling and simulation, electrical and mechanical design, and experimental execution. Core activities include the design, execution, and diagnosis of large-scale, complex experiments, as well as operation of pulsed power, accelerator, and plasma systems. These roles are responsible for workforce planning, program alignment, and capability development, while maintaining strong individual technical contributions. These roles require close collaboration with program sponsors, project leaders, and senior management to ensure successful execution of mission-critical objectives. You will have a meaningful role in managing technical activities, developing successful careers, building a positive working environment, and developing an extraordinary staff to meet program needs.These positions are in the National Security Engineering Division (NSED) within the Engineering Directorate.   This position requires full-time on-site presence due to the nature of the work. These positions 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. You will  Provide technical leadership and administrative supervision to a multidisciplinary team of scientists and engineers in support of national security missions.  Serve as a subject matter expert to direct and oversee the planning, execution, and delivery of complex research and engineering activities in electromagnetics, pulsed power, accelerator, and plasma-based systems.  Provide extensive technical guidance in the development, analysis, and application of electromagnetic systems and experimental platforms.  Advocate for and grow future high-impact projects across multiple funding streams including Programmatic, LDRD, ISCP, and SPP developing organizational strategies that influence program direction and enable innovative, high-impact capabilities. Lead and shape the development, implementation and execution of strategic plans and long-term goals for the EM section, working in collaboration with senior NSED and programmatic management to ensure consistency with Directorate and Laboratory strategy. Establish and maintain high standards for technical quality through formal reviews, performance monitoring, and continuous improvement of methods and processes. Lead workforce development, including recruiting, mentoring, performance management, and career development planning for group members including summer students, postdoctoral researchers and engineers Ensure compliance with Laboratory policies, safety and security requirements, and training expectations. Engage with internal and external stakeholders, including senior management and sponsors, to communicate technical progress and support program objectives. Perform other duties as assigned. Additional job responsibilities, at the SEL.5 level Serve as a LLNL subject matter expert and leader to provide expert-level technical leadership in electromagnetics, pulsed power, or plasma-based systems. Develop and implement high-level technical and organizational strategies that influence program direction and enable innovative, high-impact capabilities contributing to strategic planning efforts. Pilot change by developing and guiding technical direction across projects and programs, including shaping long-range research and development strategies in collaboration with senior management and sponsors.