Thermal-Hydraulics Engineer II

Airswift; Houston (TX); On-site; USD 85,000 - 125,000; Full time

Job summary

Airswift is seeking a thermal-fluids engineer to join its pioneering energy/defense-oriented team in Houston. You will perform thermal-hydraulic analyses and contribute to advanced reactor and power conversion concepts, collaborating with seasoned engineers.

You will develop CFD and system-level models, evaluate heat transfer and fluid mechanics, and document calculations and findings to support design studies and performance optimization.

Qualifications

• Bachelor's degree in Mechanical, Nuclear, Chemical, Aerospace Engineering, or a related discipline.
• 2-5 years of experience in thermal-hydraulics, thermal-fluids engineering, CFD, systems analysis, power generation, nuclear, aerospace, defense, or another highly regulated industry.
• Strong understanding of heat transfer, fluid mechanics, and thermodynamics.
• Experience with engineering calculations, modeling, simulation, and technical documentation.

Responsibilities

• Perform thermal-hydraulic and thermal-fluids analyses for advanced energy systems.
• Develop and execute CFD, system-level, and multiphysics models.
• Evaluate fluid flow, heat transfer, thermodynamic performance, and system behavior.
• Support design studies, testing, validation, and performance optimization activities.
• Prepare technical calculations, reports, and engineering documentation.
• Collaborate with multidisciplinary teams to solve complex engineering challenges.

Skills

Thermal-fluids

CFD

Heat transfer

Fluid mechanics

Thermodynamics

Engineering calculations

Education

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

Tools

STAR-CCM+

ANSYS Fluent

OpenFOAM

COMSOL

Job description

Join a pioneering engineering team developing next-generation nuclear technologies that will help deliver safe, reliable, and carbon-free energy for the future. This is an exciting opportunity for an engineer with thermal-fluids expertise to contribute to advanced reactor and power conversion systems while working alongside industry-leading technical professionals.

Key Responsibilities

• Perform thermal-hydraulic and thermal-fluids analyses for advanced energy systems.
• Develop and execute CFD, system-level, and multiphysics models.
• Evaluate fluid flow, heat transfer, thermodynamic performance, and system behavior.
• Support design studies, testing, validation, and performance optimization activities.
• Prepare technical calculations, reports, and engineering documentation.
• Collaborate with multidisciplinary teams to solve complex engineering challenges.

Required Qualifications

• Bachelor's degree in Mechanical, Nuclear, Chemical, Aerospace Engineering, or a related discipline. [
• 2-5 years of experience in thermal-hydraulics, thermal-fluids engineering, CFD, systems analysis, power generation, nuclear, aerospace, defense, or another highly regulated industry.
• Strong understanding of heat transfer, fluid mechanics, and thermodynamics.
• Experience with engineering calculations, modeling, simulation, and technical documentation.

Preferred Qualifications

• Experience with STAR-CCM+, ANSYS Fluent, OpenFOAM, COMSOL, or similar tools.
• Knowledge of helium-cooled systems, supercritical CO₂ cycles, or advanced reactor technologies.
• Advanced degree or additional specialization in a relevant engineering field.

Why Apply?

• Work on cutting-edge clean energy technologies.
• Collaborate with highly skilled engineering teams.
• Tackle technically challenging projects with real-world impact.
• Accelerate your career in one of the most innovative sectors of the energy industry.