Senior Thermal-Hydraulics Systems Engineer - Startup

Blackwing; Torrance (CA); Híbrido; USD 151.000 - 185.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Competitive base salary

Equity ownership

Medical benefits

Unlimited PTO

Free daily lunch and dinner onsite

PPE stipend

Autonomy and ownership

Descripción de la vacante

Valar Atomics is seeking a Senior Thermal-Hydraulics Systems Engineer to lead 1-D/ network modelling of reactor loops and power-conversion cycles using Flownex SE. You will translate analysis into design inputs, size key components, and support safety assessments.

The role requires 5+ years in thermal-hydraulics and familiarity with NQA-1 and regulatory environments. This on-site position offers equity, medical benefits, unlimited PTO, and a high-impact startup setting.

Formación

• Bachelor's degree in Mechanical, Nuclear, Chemical or Aerospace Engineering with emphasis on thermodynamics, heat transfer or thermal-hydraulics systems.
• 5+ years of professional thermal-hydraulics / plant-systems analysis experience, including lead responsibility on integrated system or cycle models.

Responsabilidades

• Build, run and maintain integrated Flownex SE network models of primary/secondary loops, balance of plant and power-conversion cycles for steady-state and transient analysis.
• Characterize and size components (pumps, compressors, heat exchangers, valves, turbomachinery) and evaluate cycle performance and optimization across Brayton and sCO₂ architectures as required.
• Analyze plant transients and control response (start-up/shutdown, load-follow, loss-of-flow, trips) and provide system boundary conditions to the CFD and FEA streams while consuming their loss/heat-transfer coefficients.
• Produce calculation packages and system design-basis documentation under NQA-1; provide inputs to safety analysis and interface with detailed CFD models and neutronics power distributions.
• Lead verification and validation of system models, set systems-modelling standards, support regulator/customer reviews, and mentor junior systems analysts.

Conocimientos

Thermal-hydraulics

System modeling

Scripting

Educación

Bachelor's degree in Mechanical, Nuclear, Chemical or Aerospace Engineering

Master’s degree (MSc/MEng) or higher

Herramientas

Flownex SE

RELAP5

CFD

Descripción del empleo

Valar Atomics is seeking a Senior Thermal-Hydraulics Systems Engineer to lead 1-D/ network modelling of reactor loops and power-conversion cycles using Flownex SE. You will translate analysis into design inputs, size key components, and support safety assessments.

The role requires 5+ years in thermal-hydraulics and familiarity with NQA-1 and regulatory environments. This on-site position offers equity, medical benefits, unlimited PTO, and a high-impact startup setting.