Location: Los Alamos, NM
Cap-Exempt H-1B Position — No lottery required
**What You Will Do** **The Nuclear Materials Science Group (MST-16) is seeking a highly motivated Electrical or Mechanical R&D Engineer (R&D Engineer 1/2) to support the 40mm Impact Test Facility. This role centers on implementing and optimizing diagnostics systems for velocity measurement of materials subjected to shock events. You will work in multidisciplinary teams alongside technicians, scientists, and engineers to maintain, upgrade, and lead impact test operations in secure nuclear facilities. MST-16 supports national security missions through engineering innovation, system development, and materials testing in support of Pit Surveillance, Plutonium Modernization, and other core programs. The successful candidate will work with high-performance oscilloscopes and PDV diagnostics fibers, VISAR, and lasers. This includes installation, maintenance, troubleshooting, and upgrades for dynamic experiments in plutonium environments. Key responsibilities include developing engineering solutions for mechanical and electronic systems integration, controlling experimental conditions, managing instrumentation and data acquisition, and supporting the safe and efficient execution of tests. The selected candidate will ensure alignment with facility infrastructure and compliance with safety requirements, including the Design Safety Analysis (DSA). A major focus will be on modernizing system components, control systems, and data acquisition capabilities to enhance performance and reliability. This role requires close collaboration with scientists and subject matter experts (SMEs) for dynamic experimentation to enable broader experimental efforts. The selected candidate will also contribute to technical documentation, system readiness, and milestone execution across programmatic and R&D activities. **This position will be filled at either the R&D Engineer 1 or R&D Engineer 2 level, depending on the skills of the selected candidate. Additional job responsibilities (outlined below)