Senior Thermal-Hydraulics Analysis Engineer
Core
Lead system-level thermal-hydraulics modeling for advanced nuclear reactor primary/secondary loops, balance of plant, and power-conversion cycles using Flownex SE to support design, safety analysis, and optimization.
Role type
Senior IC thermal-hydraulics systems engineer (nuclear energy)
Builds
Integrated 1-D network models of nuclear power systems (Brayton, supercritical-CO₂)
Domain
Nuclear energy / Thermal-hydraulics / Power systems
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
Thermal-hydraulics analysis, System modeling (1-D/network), Flownex SE, Component sizing (pumps, heat exchangers, turbomachinery), Transient analysis, Cycle optimization (Brayton, sCO₂), NQA-1 compliance, Mentorship
Preferred skills
Master's degree in relevant engineering, RELAP5/TRACE/GOTHIC/MELCOR experience, Helium/molten-salt/CO₂ working fluids, Property libraries (CoolProp/REFPROP), Scripting/automation, Regulated environment experience
Technologies
Flownex SE, RELAP5, TRACE, GOTHIC, MELCOR, Modelica, Dymola, Aspen HYSYS, Thermoflow, GateCycle, CoolProp, REFPROP
Responsibilities
Build and validate integrated plant models for steady-state and transient scenarios; Characterize and size components and evaluate cycle performance; Analyze plant transients and provide boundary conditions to CFD/FEA; Produce design-basis documentation under NQA-1; Lead verification/validation and mentor junior analysts; Standardize modeling methods and templates.
Seniority
Senior, hands-on IC with mentorship responsibilities