Senior Thermal-Fluid Engineer | CFD & Heat Transfer

Antares; Los Angeles (CA); On-site; USD 140,000 - 200,000; Full time

Job summary

Antares, based in Torrance, CA, seeks a senior analyst to build and run thermal-fluid CFD models of reactor core components and power conversion systems, ensuring performance under extreme conditions and supporting iterative design feedback.

You will collaborate with design engineers, test teams, and stakeholders to document results, develop internal tools, and mentor other engineers, advancing our mission to deploy safe microreactors across environments.

Qualifications

• Bachelor’s in Mechanical or Aerospace Engineering or similar technical discipline
• 4+ years of experience building and running CFD models using commercial codes such as Fluent, CFX, and Star-CCM+, including conjugate heat transfer models and compressible equations of state
• Experience using Computer Aided Design (CAD) software for design modification and model defeaturing (Siemens NX or similar)
• Experience in Python, MATLAB, VBA, or other scripting language to build and maintain tools and calculators

Responsibilities

• Assess subcomponent designs for pressure drop, heat transfer capabilities, and other performance characteristics using a combination of hand-calcs, in-house tools, and CFD
• Collaborate with designers and responsible engineers to provide guidance on initial sizing, material selection, and design feedback based on analytical results
• Compile detailed documentation of analytical results and communicate key results, assumptions, and limitations to stakeholders throughout the company and external customers
• Provide support to test engineers in the form of collaborative test design, instrumentation selection, and data review to ensure test campaigns provide the necessary data to validate our models
• Develop internal tools and calculators to enable other engineers to quickly and independently perform analytical assessments of their designs without the need for detailed finite element models
• Provide technical mentorship and guidance to other engineers and across teams

Skills

CFD modeling

Python

MATLAB

VBA

Education

Bachelor's in Mechanical or Aerospace Engineering

Master's in Mechanical or Aerospace Engineering

Tools

Fluent

CFX

Star-CCM+

Siemens NX

Job description

Antares, based in Torrance, CA, seeks a senior analyst to build and run thermal-fluid CFD models of reactor core components and power conversion systems, ensuring performance under extreme conditions and supporting iterative design feedback.

You will collaborate with design engineers, test teams, and stakeholders to document results, develop internal tools, and mentor other engineers, advancing our mission to deploy safe microreactors across environments.