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Fusion Generator Thermal Hydraulic Nuclear Engineer

Everett, Washington · Science/Research

Zap Energy is looking for an experienced and self-motivated Thermal/Hydraulics Nuclear Engineer with detailed knowledge and experience with thermal hydraulics and safety analysis in support of design, construction and licensing of nuclear facility. 


  • Responsible in developing neutronics modeling, radiological engineering in support of steady state and transient plant safety analysis activities

  • Develop and apply thermal-hydraulic analysis methods from steady state one dimensional network hydraulic analysis to transient, three-dimensional, plant, system and component-level calculations

  • Develop analytical solutions for a range of technical challenges to support system engineering related to the mechanical engineering and nuclear engineering technical areas including heat transfer, radiation transport, shielding design, nuclear heating, dose calculations, and postulated scenario analysis (using probabilistic and deterministic methods)

  • Perform code benchmarking and validation analyses to support code qualification and methodology development

  • Collaborate with various technical teams to support RAMI analysis



  • Education: M.S/Ph.D in Nuclear or Mechanical, or Chemical Engineering with application to nuclear systems

  • Years of experience: 5-10 years

  • Experience with nuclear system analysis with both deterministic and Monte Carlo methods of neutron/photon transport

  • Strong analytical skills with fundamental understanding of the first principles of transport methods and nuclear data

  • Experience with: Python, FORTRAN

  • Experience with common nuclear engineering software, such as RELAP, TRACE/SNAP, MCNP, OpenMC, FISPACT, ATTILA, SCALE, ORIGEN, DAGMC etc.

  • Knowledge of various nuclear codes and standards


  • Background in fusion projects a plus.

Benefits of joining Zap Energy - While doing meaningful work is rewarding in itself, we also offer the following programs and benefits for all employees:

  • Competitive salary and benefits

  • Premium medical / dental / vision insurance

  • Flexible vacation and paid company holidays

Zap Energy is building a low-cost, compact and scalable fusion energy platform that confines and compresses plasma without the need for expensive and complex magnetic coils. Zap’s sheared-flow-stabilized Z-pinch technology offers the shortest potential path to commercially viable fusion and requires orders of magnitude less capital than traditional approaches. Zap Energy has over 60 employees in two facilities near Seattle and is backed by leading financial and strategic investors.   Zap Energy is an equal opportunity employer.  All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws and regulations. 

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