Senior/Principal/Senior Principal Scientist; Multi-Level
Listed on 2025-12-05
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Engineering
Systems Engineer, Research Scientist
Senior/Principal/Senior Principal Scientist (Multi-Level)
Join to apply for the Senior/Principal/Senior Principal Scientist (Multi-Level) role at Nevada National Security Sites
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MSTS manages and operates the Nevada National Security Site (NNSS) for the U.S. National Nuclear Security Administration (NNSA). Our MISSION is to help ensure the security of the United States and its allies by providing high-hazard experimentation and incident response capabilities. Our VISION is to be the user site of choice for large-scale, high-hazard, national security experimentation with premier underground, surface, and airborne facilities.
Benefits- MSTS offers highly competitive salaries and benefits, including medical, dental, vision, pension, 401(k), paid time off, 96 paid holidays, relocation (if >75 miles), tuition assistance and reimbursement, and more.
- MSTS is a limited liability company consisting of Honeywell International Inc., Jacobs Engineering Group Inc., and HII Nuclear Inc.
The Enhanced Capabilities for Subcritical Experiments (ECSE) program seeks outstanding scientists (Senior, Principal, Senior Principal) to support the installation, commissioning, and technical maturation of Scorpius, Michigan’s newest linear induction accelerator. Scientists will work with the ECSE team to advance high-current pulsed‑accelerator performance, beam transport, and X‑ray source capabilities.
- Develop innovative, practical solutions and evaluate standards and processes.
- Design, execute, and analyze accelerator/beam experiments, including injector, transport, target/x‑ray conversion, stability, corkscrew mitigation.
- Develop, commission, and operate beam and X‑ray diagnostics (e.g., BPMs, Faraday cups, scintilla tors/ICCD, streak cameras, X‑ray diodes, spectrometers, interferometry).
- Build, validate, and apply physics models and multiphysics simulations; compare to experimental data and iterate designs.
- Apply targeted machine learning to accelerate tuning, enhance diagnostics, and support experiment planning; build data workflows and integrate with controls.
- Author test plans, procedures, and technical reports; present results to program leadership and external partners.
- Work safely with high voltage, radiation, vacuum/pressure systems; follow Work Planning & Control and configuration management.
- Collaborate across controls (timing/EPICS), solid‑state pulse power, alignments, targets, and operations.
- Senior Scientist: Lead major ECSE work streams; define technical roadmaps; serve as design and test readiness reviews; mentor team members.
- Principal Scientist: Serve as technical lead for major ECSE capability areas; define requirements, interfaces, and acceptance criteria; plan and lead future multi‑campaign test efforts; integrate cross‑discipline work; enforce safety culture; mentor senior scientists and engineers.
- Senior Principal Scientist: Serve as technical leader and design authority for major ECSE capabilities; lead multi‑campaign test strategies; enforce diagnostics and analysis standards; own cross‑discipline integration; define machine learning roadmap; steward budget and EVMS; influence external partnership and vendor roadmaps.
- Bachelor's in a calculus‑based STEM field plus at least 5 years relevant experience; deep expertise in at least two of: injector physics, transport stability, target/x‑ray source design, high‑speed diagnostics, pulsed‑power drivers.
- Track record leading end‑to‑end accelerator, plasma, or pulsed‑power campaigns.
- PhD or MS/BS with 7–10+ years is highly desired.
- Experience as design authority and in developing new diagnostics is preferred.
- Multiphysics optimization linking EM, thermal, structural, and beam dynamics is desired.
- Cost/schedule awareness and partner technical management experience is desirable.
- Bachelor's in a calculus‑based STEM field plus at least 9 years relevant experience; demonstrated PI/Co‑PI with delivered mission outcomes; sets technical strategy.
- Authority in instability mitigation, injector & transport tuning, or target/diagnostics architecture for high‑current accelerators.
- PhD and recognized SME…
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