AI / Simulation Engineer - Fire and Explosion

UL Solutions; Northbrook (IL); On-site; USD 110,000 - 150,000; Full time

Job summary

UL Solutions seeks a Simulation Engineer with a strong CFD, fire dynamics and thermal sciences background to support hazard modeling for battery fires and explosions.

You will primarily work with FLACS and FDS, applying advanced modelling to evaluate safety designs, code compliance, testing, and customer projects in energy and built environments.

Qualifications

• Experience in CFD and thermo-fluid analysis.
• Knowledge of fire dynamics and combustion modeling.
• Background in thermal sciences or CFD for safety applications.

Responsibilities

• Apply CFD, heat transfer, and combustion modeling to evaluate battery fires and gas explosions.
• Use FLACS and FDS for deflagration and fire-safety simulations in energy and built environments.
• Support large-scale battery fire testing and customer-facing engineering projects.

Skills

Computational Fluid Dynamics

Fire dynamics

Thermal sciences

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.