Thermal-Fluids Simulation Engineer
Confirmed on the employer's own hiring board on Sep 29, 2026. First seen by Alion on Mar 25, 2026. Alloy Enterprises scores B on the Alion truth index.
Cooling performance limits high-power computing, semiconductor fab, cell networks, photonics, power electronics, and most of our digital world. Alloy Enterprises enables customers to overcome these constraints with novel, complex metal components that dramatically improve heat dissipation in high-performance systems. Alloy’s patented Stack Forging™ process enables complex micro-geometries, resulting in single-piece, leak-tight parts that deliver superior cooling performance, lower pressure drops, and exceptional reliability. Founded in 2020, Alloy is a 50-person hardtech startup that has raised over $40M in capital and is shipping components to customers manufacturing AI servers, lasers, semiconductor equipment, and defense systems.
This role generally requires 4 days onsite per week.
What you’ll do:
As a Thermal-Fluids Simulation Engineer you will use hand calculations and computational tools to predict the performance of Alloy’s industry-leading thermal management components. You will work closely with Alloy’s Solutions Engineers and Thermal Design Engineers on optimizing designs to meet challenging customer requirements. You will have the opportunity to help develop our simulation best practices and learn from our current simulation experts.
This role generally requires 4 days onsite per week.
Responsibilities:
*Responsibilities are subject to change based on shifting business needs
Do hand calculations, select appropriate correlation coefficients, and build simple scaling models
Perform coupled thermo-fluid simulations using CFD software to predict pressure drop and thermal performance
Provide guidance and input on customer development projects
Develop and improve best practices around simulation
Qualifications:
Bachelors in Mechanical Engineering, Aerospace Engineering, or other relevant field
2+ years of industry experience
Experience with Siemens SimCenter (required)
Experience in thermal-fluid simulation and analysis; including but not limited to comfort with selecting turbulence closures, running mesh refinement studies, estimating model error, extracting dimensionless correlation coefficients from simulations
Experience with a wide range of reference literature on calculating thermal and fluid behavior of components
Ability to deliver results in a quickly evolving environment, delivering estimates for thermal performance of a design within a few days to accelerate customer-facing projects
Familiarity with design engineering work specifically, an understanding of what an engineering design process looks like and how their work informs that process
*Pay Range: $85,000-105,000 annually dependent on experience, qualifications, and education level
Additional requirements
This position will require access to information subject to control under U.S. export control laws and regulations, including the Export Administration Regulations (“EAR”) and International Traffic in Arms Regulations (“ITAR”). Please note that any offer for employment will be conditioned on authorization to receive controlled items without sponsorship for an export license.
Regarding Sponsorship
Applicants must be authorized to work for any employer in the U.S. We are unable to sponsor or take over sponsorship of an employment Visa, including H-1B, H-1C, H-2A, H-2B, H-3, F-1 or OPT at this time.
Equal employment opportunity
We are committed to creating an equitable and inclusive environment for all our employees and seek to build a team that reflects the diversity of the people we hope to serve with our products. We are proud to be an equal opportunity employer.