Senior Simulation Engineer - Fire and Explosion

UL Solutions External Career Site; Northbrook (IL); On-site; USD 90,000 - 140,000; Full time

Job summary

UL Solutions is seeking a Simulation Engineer to apply CFD, heat transfer and combustion modeling to evaluate battery fires, gas explosions and performance-based fire safety designs. The role centers on FLACS for deflagration and gas dispersion and FDS for fire dynamics and thermal impact.

You will support battery fire testing, code compliance and customer-facing projects within the energy and built-environment sectors.

Qualifications

• Strong CFD, heat transfer and combustion background.
• Experience with high-fidelity fire and explosion modeling.

Responsibilities

• Apply CFD, heat transfer and combustion models to evaluate battery fires and gas explosions.
• Support large-scale battery fire testing and performance-based design.
• Contribute to code compliance and customer-facing engineering projects.

Skills

CFD

Fire Dynamics

Thermal Sciences

Heat Transfer

Combustion Modeling

Battery Fire Modeling

Deflagration Modeling

Tools

FLACS

FDS

Job description

The UL Solutions Research and Development team and Modeling and Simulation team is seeking a Simulation Engineer with a strong CFD, fire dynamics and thermal sciences background to support fire and explosion hazard modeling. This role applies advanced computational fluid dynamics, heat transfer, and combustion modeling to evaluate battery fires, gas explosions, and performance-based fire safety designs.
The engineer will primarily work with Flame Acceleration Simulator (FLACS) for deflagration explosion and gas dispersion analysis and Fire Dynamics Simulator (FDS), fire dynamics, smoke, and thermal impact modeling. The position supports large-scale battery fire testing, performance-based design (PBD), code compliance, and customer-facing engineering projects within the energy and built-environment sectors.
This role is intended for engineers trained in thermal-fluid sciences or CFD, who wish to specialize in fire and explosion safety engineering.